IBM RT PERSONAL COMPUTER (RT PC) (TM) NEW MODELS AND ADDITIONAL
FEATURES

Contents


Announcement Letter Number 187-021 dated February 17, 1987
US - Last Revised on February 17, 1987



Brief Description of Announcement, Charges, and Availability

       IBM announces a new series of RT PC models, each featuring a
new processor with higher performance, a built-in floating-point
unit, 4 MB of fast memory, larger standard memory size with
expandability up to 16 MB, and a new disk/diskette adapter with
improved capability and performance.  An upgrade kit is offered as an
accessory to upgrade earlier models to models of the new series.
       Also announced is a floating-point performance improvement for
the RT PC new models operating with the Advanced Floating-Point
Accelerator option, and a high-resolution graphics display adapter
for attachment of selected 16' and 19' 5081 displays.
       Additional features include 4 MB and 8 MB fast memory
expansion options, additional cables, and an increase in the range of
devices supported by the existing optional Small Computer System
Interface Adapter.
Purchase Price:  $10,600   6151 Model 115
                  16,100   6150 Model 125
                  17,670   6150 Model B25
Planned Availability:   May 1987
                        March 1987
                           (feature #3913 ASCII
                           Terminal Cable only)
         RT Personal Computer and RT PC are trademarks of
  International Business Machines Corporation.


Customer Letter Section

HIGHLIGHTS
o   New, higher-performance Complementary Metal-Oxide Semiconductor
    (CMOS) RISC processor and memory management chips
o   Built-in 20 MHz Motorola (R) 68881 floating-point unit on the
    Advanced Processor Card as a standard feature
o   Floating-point performance of RT PC new models with Advanced
    Floating-Point Accelerator option improved to 1600 KWIPS
o   Standard memory size of 4 MB fast memory and expansion to eight,
    12, or 16 MB of fast memory
o   Improved-performance Extended ESDI Magnetic Media Adapter and 70
    MB Extended ESDI Fixed-Disk Drive
o   Ability to upgrade any previously announced RT Personal Computer
    to the appropriate new model
o   High resolution (1024x1024) color and monochrome graphics display
    adapter supporting the 5081 Display Models 11, 12, 16 and 19
o   Support for Small Computer System Interface Adapter attachment of
    more types of devices
         Motorola is a registered trademark of Motorola, Inc.
DESCRIPTION
       The new series in the IBM RT PC product line consists of the
IBM 6151 Model 115 and the IBM 6150 Models 125 and B25.  All new
models come equipped with the new CMOS processor and memory
management chips, a built-in Motorola 20 MHz 68881 floating-point
unit as standard, and 4 MB of fast memory, all on the Advanced
Processor Card; an Extended ESDI Magnetic Media Adapter, a single 70
MB Extended ESDI Fixed-Disk, and a 1.2 MB diskette drive.  The Model
115 brings a new level of RT PC processing power to the desk top.
The Model 125 offers expandability in a floor-standing unit that can
accommodate up to two additional 70 MB fixed disk drives.  The Model
B25 is similar to the Model 125, but has no keyboard, and is equipped
with an adapter to enable it to operate in conjunction with an IBM
5080 Graphics System for CAD/CAM applications.  The new series
provides compatibility (at the level of the Virtual Machine Interface
and above) with models of the existing RT PC series, with
substantially improved performance, when running the same IBM
programming and when configured with the same IBM features and
peripherals.
NOTE:  To take advantage of the performance potential offered by the
new models, recompiling of programs may be necessary.
       Since the base 4 MB of fast memory in the new series is
resident on the processor card rather than on a separate memory card,
as in the existing RT PC models, both RT PC memory card slots are
available for memory expansion cards.  Two expansion cards are
offered:  4 MB Fast Memory Expansion and 8 MB Fast Memory Expansion,
allowing system memories of 4, 8, 12, and 16 MB.  (Addressing
structure limits real memory to 16 MB; memory card combinations may
not contain more than one 8-MB fast memory card plus one 4-MB fast
memory card for a system total of 16 MB.)
       In addition to providing space for two additional optional 70
MB fixed disk drives, the 125 and B25 models have a larger power
supply and more expansion slots than the Model 115, to enable the
configuration of larger multi-user systems or more elaborate personal
workstations.
       Models 115 and 125 can be configured as small multi-user
commercial systems with up to 16 ASYNC ports, or alternatively as
engineering/scientific workstations with a high-resolution display,
or as technical professional workstations with extensive LAN file
sharing capabilities.
       The IBM Megapel Display Adapter (#7658) and support for the
attachment of IBM 5081 Displays Models 11, 12, 16 and 19 offer a new,
native attachment for high resolution 1024 x 1024 16' color and 19'
color and monochrome displays.  The IBM Megapel Display Adapter also
supports the 5082 Projection System, which enables use of the
graphics capabilities of the RT PC System in environments where
large-audience viewing is a requirement, such as meetings or
presentations.
TECHNOLOGY
The RT PC Advanced System Processor has a 32-bit Reduced Instruction
Set Computer (RISC) architecture developed by IBM and implemented in
a 1-micron CMOS technology.  It has sixteen 32-bit general purpose
registers and uses 32-bit addresses and data paths. The
microprocessor is controlled by 118 simple 2- and 4-byte
instructions.  An IBM-developed advanced memory management chip
provides virtual memory address translation functions and memory
control.  It provides a 40-bit virtual address structure capable of
addressing one terabyte of virtual memory.
       The RISC architecture provides a system oriented toward
pervasive use of high-level language programming, while providing a
storage and I/O organization to enable the CPU to execute most
register-to-register instructions in a single cycle.
       All new model RT PCs contain 4 MB of fast memory, capable of
providing the processor with a 32-bit word of data plus ECC each 100
nsec cycle.  This memory consists of 40 1-megabit IBM RAM chips.
These chips are the same megabit technology used in the IBM 3090.
       The interface between the RT PC processor and the dedicated
32-bit floating-point accelerator slot has been improved to permit
faster transmission of data to and from the advanced floating-point
accelerator.
       The higher processor speed has been exploited by the Extended
ESDI Magnetic Media Adapter by changing the hard file interleave
factor from 4:1 to 1:1.  This new adapter also employs the RT PC's
burst DMA I/O capability and incorporates a more efficient
alternate-sector scheme than the previous ESDI adapter.
PERFORMANCE
The IBM RT PC Advanced System Processor has a cycle time of 100
nanoseconds and executes up to 4.5 million instructions per second
(MIPS), depending upon the actual instruction mix.  For central
processing unit intensive tasks, the new models with the RT PC
Advanced System Processor have approximately two times the execution
speed of the existing models.  Actual system throughput is dependent
on numerous other factors.
       The performance improvement of the new series models has been
achieved through a number of improvements.  Shorter instruction and
memory cycle time are coupled with architectural changes, such as
increasing the number of instructions that take only one cycle to
execute, and improving the interfaces between processor sub-units.
The Extended ESDI Magnetic Media Adapter increases the maximum
fixed-disk data transmission rate from .26 to 1 million bytes per
second.  This performance improvement, which will have a favorable
impact on the performance of applications that use disk files or have
high paging rates, results from a change from a 4:1 to a 1:1
interleave factor and the use of the RT PC I/O channel's burst DMA
capability, a feature not available on other IBM Personal Computers.
       The RT Personal Computer has a four-byte-wide memory interface
with eight bits of error correcting code (ECC), providing a bandwidth
of about 40 MB per second.  The I/O bus bandwidth is 2 to 4 MB per
second.  The 4 MB and 8 MB fast memory have an effective cycle time
of 100 nanoseconds using two-way interleaving to overlap memory
access.
       The performance of the Megapel Display Adapter can be
characterized by the following statements of approximate performance:
the Megapel Display Adapter has a pixel write time in any direction
of 113 nanoseconds per pixel.  The Adapter also has a 4 million pixel
per second BIT/BLT rate doing screen-to-screen BIT/BLT.  The Adapter
will perform a fill rectangle operation at up to 30 million pixels
per second.  System performance is subject to a number of other
variables, and, accordingly, the foregoing parameters are not
necessarily representative of system performance.
FLOATING-POINT PERFORMANCE:  The built-in standard floating-point
unit is located on the same card as the Advanced System Processor and
has a performance of up to .81 million Whetstone Instructions Per
Second (.81 MWIPS) in single-precision, and a double-precision
performance of up to .7 MWIPS or 80 thousand Linpack Floating-Point
Operations Per Second (80 KFLOPS).  The optional Advanced
Floating-Point Accelerator (#6815), which may be plugged into the
Floating-Point Accelerator slot on the system board, increases the
capability of the IBM RT PC new series models to process
floating-point operations.  With this Advanced Floating-Point
Accelerator option, the RT PC Models 115, 125, and B25 each have a
FORTRAN floating-point performance in double-precision of
approximately 1.4 MWIPS (1.6 MWIPS single precision) or 300 KFLOPS
when supported by the AIX (TM) Operating System Version 2.1.  (For
performance conditions, qualifications, and limitations, see the
Performance section of Product Announcement 187-020, dated February
17, 1987.)
NOTE:  The performance shown is for Models 115, 125, and B25 whether
manufactured new by IBM or upgraded by customers from earlier IBM RT
PC models using the IBM upgrade kit (P/N 61X6833).  The IBM upgrade
kit must be correctly and completely applied and the resulting system
brought to full equivalency with the newly-manufactured model,
including replacement or reformatting of all existing fixed disk
drives to IBM 70 MB Extended ESDI Fixed-Disk Drives.  Upgraded
systems to which the upgrade kit has been only partially applied will
have lower levels of performance.
         AIX is a trademark of International Business Machines
  Corporation.
CONFIGURATION
Except in the areas noted below, the new series models parallel the
earlier RT PC Models 015, 025, and A25.  Model 115 is similar to
Model 015 in physical appearance and featurability, while Models 125
and B25 are similar to the earlier Models 025 and A25.  The 6150
Model B25 serves as a private host executing the graphics application
for a 5080 Graphics System workstation via a serial link adapter
standard with this model.  An appropriately configured Model 125 can
also be equipped for use in this configuration by addition of a 5080
Attachment Adapter (#7860).  (Consult specific application
requirements for recommended configuration of fixed disk and memory.)
       All new models of the RT Personal Computer are equipped with a
high capacity (1.2 MB) diskette drive and an integrated date/time
clock with battery backup.  Models 115 and 125 are also provided with
a keyboard and attached keyboard cable.  Standard memory on all new
models is 4 MB of fast memory on the Advanced Processor Card.
       Configuration flexibility in the new model RT PCs is achieved
by slots for optional features, as follows:
o   Two dedicated 32-bit slots for RT PC fast memory expansion cards
o   One dedicated 32-bit slot for the optional Advanced
    Floating-Point Accelerator
o   Eight I/O feature slots (six in Model 115)
       Model 115 has six I/O feature slots and Models 125 and B25
contain eight I/O feature slots to support devices, features, or IBM
Personal Computer AT (R) memory.  Six of the slots (five in Model
115) may be occupied by either RT Personal Computer or supported
Personal Computer AT 16-bit option cards or by  supported Personal
Computer 8-bit option cards. Two slots (one in Model 115) support
8-bit options only.  As shipped by IBM, all models use one of the
16-bit slots for the standard combination disk/diskette Extended ESDI
Magnetic Media Adapter.  The IBM feature cards, which plug into the
I/O feature slots and are supported on the earlier series, are also
supported on the new series.
       All new models include the new, improved-performance Extended
ESDI Magnetic Media Adapter and a single 70 MB Extended ESDI
Fixed-Disk Drive as standard, in addition to the standard 1.2 MB
High-Capacity Diskette drive.  The Extended ESDI Magnetic Media
Adapter requires one of the 16-bit feature slots.  The Adapter will
support up to three-70 MB fixed disk drives and up to two diskette
drives (one 70 MB fixed disk and one diskette drive in the Model
115).  The second diskette drive in the Model 125 or B25 may be
either an IBM PC AT 1.2 MB high capacity drive or an IBM PC AT
dual-sided diskette drive (320/360 KB).  Additional direct-access
storage is available for Models 125 and B25 by adding either one or
two 70 MB Extended ESDI Fixed-Disk drives.  These combinations result
in a maximum internal fixed-disk storage of 210 MB.  External disk
storage up to 5.6 GB may be added to any RT PC model via the optional
Small Computer System Interface Adapter and the IBM 9332 or other
compatible DASD.
       Fixed-disk backup for save/restore of recorded information is
available through the optional IBM 6157 Streaming Tape Drive. (Refer
to Product Announcement 186-008, dated January 21, 1986.)  The 6157
tape cartridge also provides a medium for data interchange between
systems.
       Models 125 and B25 each have two built-in asynchronous
(RS-232) serial ports with direct memory access.  The serial ports
are recommended for attachment of high data rate devices such as the
IBM 3812 Pageprinter.  Each model can be further expanded through
customer setup options.
       Memory can be expanded to 16 MB via optional 4 MB or 8 MB fast
memory cards in the two dedicated memory card slots.  Most of the
feature cards supported on the earlier series are also supported on
the new series.
       All new models include a standard security keylock, which,
when locked, can help to prevent removal of the RT Personal Computer
cover, initialization of the system, and entry of commands or data
from the keyboard when locked.  A programmable speaker, used to
produce tones, is also provided in the keyboard.
       The keyboard is standard on Models 115 and 125, and is
attached to the RT Personal Computer via an attached 2.5-meter
(8.2-foot) cable, permitting a variety of workspace configurations.
In the case of the Model B25 for use with the 5080 Graphics System,
the keyboard is provided with the 5080 rather than as part of the
6150 Model B25.
         Personal Computer AT is a registered trademark of
  International Business Machines Corporation.
RELATIONSHIP TO INITIAL MODEL SERIES
The new series of models (Models 115, 125, and B25) are a part of the
RT PC system family, and are compatible (at the level of the Virtual
Machine Interface and above) with the initial model series (Models
010, 015, 020, 025, and A25) when running the same IBM programming
and when configured with the same IBM features and peripherals.
Accordingly, the customer's programming and training investment is
preserved, and models of both series may also be intermixed in the
user environment, whether standalone or local or long distance
network.  In addition, supported IBM option cards that attach via the
RT PC I/O Bus (option card slots) will operate in models of either
series.
       While it is also possible to utilize IBM fixed disk drives and
adapters from Models 010, 015, 020, 025, and A25 in the new models,
best system performance will be obtained if only the IBM Extended
ESDI Adapter and Drives are used.  The new series of models employs
faster circuitry of a different Very Large Scale Integration (VLSI)
family (CMOS) and has implemented other technologies and design
changes aimed at increasing system speed and throughput in data
handling and in both fixed- and floating-point calculations.  The new
system elements (advanced processor card, fast memory cards, and
Extended ESDI Magnetic Media Adapter) have been selected to work
together as an integrated system having improved performance.  For
this reason, memory cards from the initial series models are not
supported on the new series models, and vice versa.
       The optional Advanced Floating-Point Accelerator (#6815) was
designed from its inception to work with either model series,
although system floating-point performance is much higher when the
Advanced Accelerator is used in new model series machines.
MODEL UPGRADES
Earlier models may be upgraded to the new series models through the
purchase and use of an IBM upgrade kit (plus addition of an Extended
ESDI or reformatted ESDI Fixed-Disk Drive in the case of Models 010
and 020).  The kit permits an IBM 6151 Model 015 to be upgraded to an
IBM 6151 Model 115, and the IBM 6150 Models 025 and A25 to be
upgraded to IBM 6150 Models 125 and B25, respectively.  Upgrade of
the IBM 6151 Model 010 to Model 115 or the IBM 6150 Model 020 to

Model 125 is also possible, but these upgrades require the customer
to first acquire either an RT PC 70 MB Extended ESDI Fixed-Disk Drive
(#3988), or an RT PC ESDI Fixed-Disk Drive (#6941), which can be
reformatted to be compatible with the RT PC Extended ESDI Magnetic
Media Adapter standard in all new series models.  Because the new
series models are only supported by AIX Operating System Version 2.1,
that version of the operating system is a corequisite of the upgrade
kit.
       In model upgrades where the earlier model already houses one
or more ESDI 70 MB Fixed-Disk Drives, the drive(s) must be
reformatted in order to be compatible with the new Extended ESDI
Magnetic Media Adapter in the new series models. A utility program
will be provided as a part of the upgrade kit to enable users to
reformat their disks.  Customers are responsible for taking
appropriate measures to insure the safety and security of customer
data and programs throughout the process of removing all
data/programs from the disk to be reformatted, reformatting the disk,
and reloading the data/programs to disk.  (See New Model Series
Upgrade Kit, Accessory P/N 61X6833 below.)
       Customers who wish to upgrade their RT PC systems in stages
can continue to use their existing DASD and adapters, but should
recognize that best overall performance levels will not be realized
without disk reformatting or replacement, as required to reach full
equivalency with the standard models of the new series.  Stated
prerequisites and limitations continue to apply to RT PC systems
composed of mixed existing and Extended ESDI DASD, as well as to
fully upgraded systems.
ADDITIONAL FEATURES AND ACCESSORIES
The IBM Megapel Display Adapter (#7658) is a high-resolution display
adapter that provides a direct connection for the IBM 5081 Model 11,
12, 16 or 19 displays or the 5082 Projection System to an RT Personal
Computer system unit (any model).
NOTE:  Feature Code #2001 is required on a 5081 display for
attachment to the Megapel Adapter.
       The adapter allows the attached monitor to function both as
the application display and the RT PC operator console.
NOTE:  The monitor attached to the Megapel Adapter is not supported
as an operator console by the PC AT Coprocessor Services Licensed
Program or by application programs running in Coprocessor mode.
However, a supported display -- either the IBM 5151 or the IBM 5154
-- may be added to the RT PC to provide a console for coprocessor
support.
       The Megapel Display Adapter supports 1024 x 1024 resolution on
its attached display, 256 colors from a palette of 4096 colors for
color monitors, or 16 shades of gray on monochrome monitors.  The
adapter has a high speed LSI pel processor with Pick and Scissor
capability as standard, which provides high speed vector draw,
BIT/BLT, and area fill.
       The adapter is packaged on two linked cards that require two
adjacent 16-bit feature slots in the RT PC.  The adapter also
provides a parallel printer interface identical to the printer
interface on the PC Monochrome Display Adapter, eliminating the need
for a separate parallel printer adapter and the use of a slot for
that purpose.  (Note:  If feature #4900, IBM Monochrome Display and
Printer Adapter, is also plugged in, only one parallel printer
adapter per system may be active.)  The adapter includes a six-foot
signal cable to attach the monitor to the adapter card.
       The Megapel Display Adapter is supported by two application
interfaces, graPHIGS (TM) (IBM's Programmer's Hierarchical
Interactive Graphics Standard) and GSL (Graphics Support Library).  A
software prerequisite for adapter support is either AIX Version 2.1
or VRM Version 2.1.
       There is a limit of one Megapel Display Adapter per RT PC
system.  The RT PC must have a minimum of two MB of memory.  The
adapter can coexist on an RT PC with a native RT PC display (6153,
6154 or 6155) and adapter, with a supported PC display (5151 or 5154)
and adapter, and with the 5080 Attachment Adapter (#7860).
       The IBM RT Personal Computer 70 MB Extended ESDI Fixed-Disk
Drive (#3988) provides a 70 MB fixed disk drive for use as an
optional second or third fixed disk drive in an RT PC Model 125 or
B25.  The disk is formatted to be compatible with the RT PC Extended
ESDI Magnetic Media Adapter and is identical to the 70 MB Extended
ESDI Fixed-Disk Drive that comes as standard with every RT PC Model
125 or B25.  Average access is 37 ms, transfer rate is 10 MBits per
second.  ESDI interface, 512 bytes per sector, 35 sectors per track,
3600 RPM, 5-1/4 inch internal disk drive.  This disk drive and the
standard RT PC Extended ESDI Magnetic Media Adapter in the new series
models (115, 125, B25) together provide a large performance increase
over the RT PC 70 MB ESDI Fixed-Disk Drive (#6941) and its adapter
through 1:1 sector interleaving and Direct Memory Access (DMA) of
disk data.  AIX Version 2.1 is a prerequisite for support of the 70
MB Extended ESDI Fixed-Disk Drive (not available for any model of the
IBM 6151, or for the IBM 6150 Models 020, 025 or A25).
       The IBM RT Personal Computer 4 MB Fast Memory Expansion
(#7004) increases the system memory of a Model 115, 125 or B25 by 4
MB.  Up to two 4 MB Fast Memory cards can be added to an RT PC to
supplement the standard 4 MB of fast memory on the Advanced Processor
Card.  The Fast Memory Expansion option cards plug into dedicated
memory card slots in the RT PC system.  4 MB and 8 MB Fast Memory
cards can be used in combination in the two slots so long as the
system total does not exceed 16 MB, including the 4 MB on the
processor card.
       Memory is divided into two arrays of 2MB each with
interleaving to overlap memory access and achieve the equivalent of
100-nanosecond cycle time. Four data bytes and one error correcting
code (ECC) byte are transferred at a time over a 32-bit data path
plus 8-bit ECC.
       The IBM RT Personal Computer 8 MB Fast Memory Expansion
(#7008) increases the system memory of a Model 115, 125, or B25 by 8
MB.  Only one 8 MB Fast Memory Expansion option may be added to the
RT PC, either alone or in combination with the 4 MB Fast Memory
Expansion option.  Fast Memory Expansion cards plug into two
dedicated memory slots in the RT PC system.  4 MB and 8 MB Fast
Memory cards may be used in combination in these two slots so long as
the system total does not exceed 16 MB, including the 4 MB on the
processor card.  Memory is divided into two arrays of 4 MB each with
interleaving to overlap memory access and achieve the equivalent of
100-nanosecond cycle time.  Four data bytes and one error correcting
code (ECC) byte are transferred at a time over a 32-bit data path
plus 8-bit ECC.
       The IBM RT PC Small Computer System Interface Adapter for IBM
9332 DASD Attachment (#7000) was announced September 18, 1986.
(Refer to Product Announcement 186-174.)  This adapter, associated
cables, and associated software were designed in consideration of the
ANSI Standard (X3.131.1986) and support the Mandatory Command Set for
disk and tape, as well as selected Optional and Extended Commands for
disk and tape (see Hardware Technical Reference for interface
description).  The transmission option supported is the Differential
Driver-Receiver option.  The attachment cable provides the
Alternative-2 connector.
       In recognition of the increasing popularity of the Small
Computer System Interface as a means of device attachment to high end
personal computer systems, the scope of this feature (#7000) has been
broadened to include other disks and tapes having an appropriate
interface.
       OEM disk and tape suppliers now have an additional hardware
interface, with IBM-supported software device drivers, for attachment
of appropriately designed disk and tape products.  Accordingly, the
name of the adapter feature #7000 has been shortened to IBM RT PC
Small Computer System Interface Adapter in order to reflect the
broadened scope of the adapter connectivity.
       The New Model Series Upgrade Kit (P/N 61X6833) contains the
hardware, software, and instructions necessary to upgrade a Model 015

to a Model 115, a Model 025 to a Model 125, or a Model A25 to a Model
B25.  The kit consists of a New Model Series Advanced Processor Card
with new 100 nanosecond cycle CMOS processor, built-in floating-point
unit, and 4 MB of on-card fast memory; an RT PC Extended ESDI
Magnetic Media Adapter, an RT PC Extended ESDI Magnetic Media Adapter
Cable, a Utility Program Diskette with ESDI-to-Extended ESDI
Reformatting Utility Program, and Customer Setup Instructions for the
upgrade kit.  Hardware publications updates for the new series models
and diagnostic diskettes accompany the upgrade kit in a separate
carton.
       A corequisite for the upgrade kit is RT PC AIX Operating
System Version 2.1 .
       The upgrade kit is only available for sale for the purpose of
upgrading earlier RT PC Models 010, 015, 020, 025, and A25.  There is
a limit of one upgrade kit per RT PC system.  Refer to the special
terms and conditions for the upgrade kit later in this announcement.
       The IBM RT Personal Computer ASCII Terminal Cable -- RS-232C
(10/25M-Pin) (#3913) is a 3-meter interface cable for attaching the
IBM 316X family of ASCII terminals to any of the ports on the
Four-Port Asynchronous RS-232C Adapter or to the standard RS-232C
ports in the base unit of the IBM 6150 models.  This cable has a
25-pin male D connector for the terminal and a 10-pin connector for
the adapter.
PUBLICATIONS
       Each IBM RT PC system will be shipped with four manuals:
o   IBM RT Personal Computer User Setup Guide (SV21-8020)
o   IBM RT Personal Computer Guide to Operations (SV21-8021)
o   IBM RT Personal Computer Problem Determination Guide (SV21-8022)
and either
o   IBM RT PC 6151 System Unit Hardware Maintenance and Service
    (SV21-8026)
or
o   IBM RT PC 6150 System Unit Hardware Maintenance and Service
    (SV21-8025)
       The IBM RT Personal Computer Planning Guide (GC23-0782) (P/N
92X1312) will be given to the RT Personal Computer customer at the
time of purchase.
       The following is available for purchase:
o   IBM RT Personal Computer Hardware Technical Reference (SV21-8024)
       These publications can be ordered from Mechanicsburg.
Availability of the versions covering the new models and features
will be May 1987.  Diagnostic diskettes and publications updates
covering the features announced today will be shipped with the
features.
EDUCATION SUPPORT
       A description of self-study and classroom courses is contained
in the Catalog of IBM Education (G320-1244).
       Call IBM Direct Education toll free at 1-800-426-2468 for
schedules, enrollments and orders for self-study courses.
SCHEDULE
       Planned availability of the RT PC new models and features is
May 1987 on all items except for feature #3913, which is planned to
be available March 1987.
TECHNICAL INFORMATION
       IBM 6151 Model 115 and IBM 6150 Models 125 and B25:
o   32-bit processor with 100-nanosecond cycle time
o   Virtual memory management unit with 40-bit virtual address and
    hardware memory management assist
o   32-bit system memory with ECC and 2-way interleaving
o   I/O Bus (16-bit data/24-bit address)
o   Power supply:
    -   IBM 6151 System Unit -- (285 watts maximum)
    -   IBM 6150 System Unit -- (435 watts peak; 368 watts steady
        state)
o   BTU Output:
    -   IBM 6151 - 2150 BTU/Hr.
    -   IBM 6150 - 2400 BTU/Hr.
o   Dimensions
    -   6151
        --  Height -- 160mm (6.3 inches)
        --  Width -- 540mm (21.3 inches)
        --  Depth -- 424mm (16.7 inches)
    -   6150
        --  Height -- 635mm (25 inches)
        --  Width -- 210mm (8.3 inches)
        --  Depth -- 614mm (24.2 inches)
o   Weight (approximate)
    -   IBM 6151 -- 23kg. (50 lbs)
    -   IBM 6150 -- 41kg. (91 lbs)
o   Electrical
    -   Low Voltage Range
        --  90-137 VAC, 60 HZ
    -   Temperature
        --  System on 15.6 degrees -- 32.3 (degs) C (60 (degs) -- 90
            (degs) F)
        --  System off 10 degrees -- 43 (degs) C (50 (degs) -- 110
            (degs) F)
    -   Relative Humidity
        --  System on, 8-80% (noncondensing)
        --  System off, 8-80% (noncondensing)
    -   Noise Level:  46 DBA average at one meter
SPECIFIED OPERATING ENVIRONMENT
MACHINE REQUIREMENTS:  For IBM RT PC Models 115, 125, B25 -- none;
for features -- see Prerequisites.
PROGRAMMING REQUIREMENTS:
       For the IBM RT PC Models 115, 125, and B25 -- All require IBM
RT PC AIX Operating System Version 2.1 (5601-061).
       For the New Model Series Upgrade Kit (P/N 61X6833) -- IBM RT
PC AIX Operating System Version 2.1.
       For the Megapel Display Adapter (#7658) -- RT PC AIX Operating
System Version 2.1 or VRM Version 2.1.
       For the Small Computer System Interface Adapter (#7000) -- RT
PC AIX Operating System Version 2.1.
       The following peripheral devices require the RT PC AIX
Operating System Version 2.1:
o   IBM 5081 Display, Model 11, 12, 16, or 19.
o   IBM 4202 Proprinter XL
o   IBM 3852 Model 2 Colorjet Printer
o   IBM 6184 Color Plotter
o   IBM 9332 DASD, Models 240, 250, 440, and 450 (Announced September
    1986)
COMPATIBILITY:  The IBM RT PC Models 115, 125, and B25 use the same
external interface as the initial Models 010, 015, 020, 025, and A25,
and are compatible (at the level of the Virtual Machine Interface and
above) with models of the initial series when running the same IBM
programming and when configured with the same IBM features and
peripherals.  (Note: To take advantage of the performance potential
of the new models, recompiling of programs may be necessary; in order
to achieve the full performance improvements in floating-point
operations of which the new models are capable, it will be necessary
to recompile programs using the new compilers running under AIX
Version 2.1.)
       The new Extended ESDI Magnetic Media Adapter does not support
the existing 40MB or the 70 MB ESDI Fixed-Disk Drives, nor is the
Extended ESDI Magnetic Media Adapter supported in existing RT PC
Models 010, 015, 020, 025, or A25.  6150 Models 20/25/A25, when
upgraded to Models 125/B25, support only one IBM 40MB fixed disk
drive.
       All IBM options for the RT PC that plug into an 8-bit or
16-bit feature slot on the RT PC are supported on the new models.
The new fast memory expansion features are not compatible with the
earlier RT PC models.  The earlier memory expansion cards are not
supported on the new models.
       The Megapel Display Adapter supports the IBM 5081 Display
Models 11, 12, 16, and 19, and attaches to any model of the RT PC.
It can coexist with the RT PC native displays, supported PC displays,
and with the 5080 Attachment Adapter feature #7860.
       Refer to Product Announcement 186-008, dated January 21, 1986,
for a listing of personal computer hardware options and IBM
peripheral devices supported on the RT Personal Computer.  The IBM RT
PC Models 115, 125, and B25, RT PC 4 MB Fast Memory Expansion, RT PC
8 MB Fast Memory Expansion, 70 MB Extended ESDI Fixed-Disk Drive, and
the Megapel Display Adapter may coexist with the IBM peripheral
devices and options listed.
       In addition, the following peripheral devices and Personal
Computer hardware options are now also supported on the RT PC (all
models):
o   IBM 5080 Display, Models 11, 12, 16 and 19
o   IBM 4202 Proprinter XL
o   IBM 3852 Model 2 Colorjet Printer
o   IBM 6184 Color Plotter
o   IBM 9332 DASD, Models  240, 250, 440, and 450 (Announced
    September 1986)
o   IBM 5083 Model 11A and 12A Tablet
o   IBM 5842 Modem
o   IBM Personal Computer Advanced 3278/79 Emulation Adapter (#5050)
    (Announced September 1986).
PREREQUISITES:
       For IBM RT PC Models 115, 125, B25 -- None.
       For IBM RT PC 4 MB Fast Memory Expansion option (#7004) or 8

MB Fast Memory Expansion option (#7008) -- an available memory slot
on an RT PC Model 115, 125 or B25.
       For the IBM RT PC 70 MB Extended ESDI Fixed-Disk Drive (#3988)
-- an available internal disk drive position in an IBM 6150 Model 125
or B25.
       For IBM Megapel Display Adapter (#7658) -- two adjacent
available 16-bit feature slots, and two MB or more of memory in the
RT PC.
       For New Model Series Upgrade Kit (P/N 61X6833) -- An IBM RT PC
Model 010, 015, 020, 025, or A25.  For full upgrade to new series
equivalency, Models 010 and 020 will also require an RT PC 70 MB
Extended ESDI Fixed-Disk (#3988), or a reformatted IBM RT PC 70 MB
ESDI Fixed-Disk (#6941).
LIMITATIONS:  IBM RT PC 4 MB or 8 MB Fast Memory Expansion options
are limited to a maximum of two expansion cards per system, and a
maximum of 16 MB total memory.
       The IBM Megapel Display Adapter is limited to one adapter per
RT PC system.  The 5081 Display is not supported as a system console
for use with the PC AT Coprocessor Feature #4756, the PC AT
Coprocessor Services Licensed Program, or coprocessor applications.
If feature #4900, IBM Monochrome Display and Printer Adapter, is also
plugged in, only one parallel printer adapter per system may be
active.
       The following licensed programs support the Megapel Display
Adapter:
                                              DATE
                                            SUPPORT
PROGRAM                                    AVAILABLE
Personal graPHIGS Release 3.2               May 1987
IBM RT PC AIX Operating
   System, Version 2.1                      May 1987
IBM RT PC VRM, Version 2.1                  May 1987
IBM RT PC INmail/INned/File
   Transfer Program                         May 1987
IBM RT PC 3278/79 Emulation,
   Version 1.1                              May 1987
IBM RT PC Data Management
   Services, Version 1.1                   June 1987
IBM RT PC SQL/RT Data Base,
   Version 2.1                              May 1987
IBM RT PC X-WINDOWS                      September 1987
       IBM 6150 Models 20/25/A25 being upgraded to Models 125/B25 can
support only one IBM 40MB fixed disk drive.  The 40MB drive must be
attached to the fixed disk drive adapter shipped with the original
system.  Up to two IBM 70MB drives may be installed on the fixed disk
drive adapter provided with the upgrade kit along with the single
40MB drive.  The Extended ESDI adapter in the upgrade kit can support
up to a total of three 70MB fixed disk drives in all upgraded Model
20/25/A25s.
CONNECTION OF 6150 MODEL B25 TO THE MODEL 5080 GRAPHICS SYSTEM:  The
6150 Model B25 System Unit can be connected to the 5080 Graphics
System through the use of appropriate features/prerequisites in the
5080 and/or 5088.  Refer to Product Announcement 186-009, dated
January 21, 1986.  Connection of the 5080 system to the 6150 Model
B25 allows the 5080 to operate in a standalone environment with the
6150 as the Graphics Application Processor.  An appropriately
configured 6150 Model 020 System Unit/Keyboard or 6150 Model 025 or
125 System Unit/Keyboard can also be upgraded with the RT Personal
Computer 5080 Attachment Adapter, feature #7860, to connect to the
IBM 5080 System.  (Consult specific application requirements for
recommended configuration of fixed disk and memory.)  The 5080
Attachment Adapter also allows the 5080 to be switched between
standalone and System/370 mainframe interactive modes via the
keyboard.  Mainframe interactive mode requires a 5088 Channel Control
Unit as a part of the 5080 configuration.  (Note:  The CAD/CAM
application must reset the 5080 state when switching between the host
and the IBM RT Personal Computer.  The 5083 Tablet is supported on
the 5080 and on the RT Personal Computer.)  The attachment is made
via a 4.5-meter (15-foot) industry standard coaxial cable supplied
with the adapters, and requires a 16-bit feature slot.
Customer-supplied coaxial cable may also be used.  (See Physical
Planning Information.)  If Model 020, 025, or 125 is already
installed, order IBM RT Personal Computer 5080 Attachment Adapter
(feature #7860) for installations in Model 020, 025 or 125;
modification of a 5080 Model 1 (via feature #6150) and 5088 Models 1,
2, and 1R with serial numbers less than 4000 (via feature #9150) is
required to make the connection.  IBM 5085 Models 1A and 2 and IBM
5088s with serial numbers greater than 4000 do not require
modification for connection to the RT PC.
PLANNING INFORMATION
CUSTOMER RESPONSIBILITIES:  The IBM RT PC Models 115, 125, and B25
and the additional features are designated as customer setup.
Customer setup, service, and programming publications will be
available at planned availability of the new model or appropriate
feature.  The CSU allowance is one day.  The customer is responsible
for adequate site and system planning and preparation.  See IBM RT
Personal Computer Planning (GC23-0782) (P/N 92X1312).  The customer
is responsible for unpacking and setting up system components per the
setup instructions provided.
       Setup service is available from National Service Division at
the hourly service rate and terms.  In addition, the National Service
Division offers a Contract Support Service (CSS) available for a
minimum of 10 machines, which provides setup support for a fixed fee.
CABLE ORDERS:  The cables for attaching the keyboard and mouse to the
system unit are supplied with the devices, and the signal and power
cables for the RT PC displays are supplied with the display.  The
Megapel Display Adapter includes the signal cable for the 5081
Display.  See Special Features section of RT PC Sales Pages for cable
kits to attach Dials, Lighted Program Function Keyboard, and IBM 5083
Tablet.
       User-supplied coaxial cable is required to connect RT Personal
Computers to a 5088 Controller using the S/370 Host Interface Adapter
in the RT PC.
INSTALLABILITY:  The keyboard and mouse are plugged directly into the
system unit.  The 5083 Tablet is connected via a Tablet Cable Kit
(#7586) to the same port on the system unit into which the mouse is
plugged; the tablet and mouse are mutually exclusive options.  The
Lighted Program Function Keyboard (#4710) and Dials (#8710) are
connected via an RT PC 5080 Peripheral Cable Kit (#7564).  Supported
RT PC displays are connected via the appropriate IBM Display Adapter,
which is plugged into a system feature slot, using the signal cable
attached to the display.  The signal cable for the 5081 Display plugs
into the back of the 5081 Display and into the Megapel Display
Adapter, which itself plugs into a feature slot on the RT PC.
       Once turned on, the system unit automatically runs a power-on
self-test to verify system unit readiness.  The system unit keylock
must be unlocked to complete this self-test.  If a failure is found,
an error code will appear on a two-digit indicator.  Detailed
installation instructions are contained in the IBM RT Personal
Computer User Setup Guide (SV21-8020).  The customer is responsible
for following the problem determination procedures in this guide and
in the IBM RT Personal Computer Problem Determination Guide
(SV21-8022).
PREREQUISITES:  The RT Personal Computer requires a supported display
with appropriate adapter for console output.
PROBLEM DETERMINATION:  The IBM RT Personal Computer Problem
Determination Guide (SV21-8022) contains self-test and diagnostic
procedures to assist the customer in isolating a defective machine
element.
PACKAGING:  The RT PC Models 115, 125, and B25 system units,
keyboards, line cords, and external options are packed in separate
cartons (no keyboard with Model B25).  An additional carton labeled
Open Me First contains the warranty card and the following manuals:
o   IBM RT Personal Computer User Setup Guide and Options
    Installation (SV21-8020)
o   IBM RT Personal Computer Guide to Operations (SV21-8021)
o   IBM RT Personal Computer Problem Determination Guide (SV21-8022)
       The following manual is packed in a separate carton and
shipped with the system unit:
o   With the Model 115:
    -   IBM RT PC 6151 System Unit Hardware Maintenance and Service
        (SV21-8026)
o   With the Models 125 and B25
    -   IBM RT PC 6150 System Unit Hardware Maintenance and Service
        (SV21-8025)
       When not ordered as a part of a system unit order, the Megapel
Display Adapter, 70 MB Extended ESDI Fixed-Disk Drive, 4 MB and 8 MB
Fast Memory Expansion Features, and the cables are each packaged
separately in cartons containing the adapter/feature and warranty
information.  Diagnostic diskettes and publication updates covering
the various features will be shipped with the feature in a separate
package.  The signal cable for the 5081 Display is packaged with the
Megapel Display Adapter.
SECURITY, AUDITABILITY, AND CONTROL
       The RT Personal Computer can be used and managed to limit the
risk of unintended modification, destruction, or disclosure of
sensitive data.
       User management is responsible for evaluation, selection, and
implementation of security features, for administrative procedures,
and for appropriate controls in application systems.
       If sensitive data is sent over external communication
facilities, user management may wish to pursue the application of
cryptography.
TERMS AND CONDITIONS
VOLUME PURCHASE DISCOUNT:  Volume purchasing is available under the
Volume Procurement Amendment (VPA) to the Agreement for Purchase of
IBM Machines.  The IBM RT PC is included in Category A of VPA
Exhibits 6150-2 and 615E-1.
       Special bid provisions apply.
CUSTOMER FULFILLMENT OPTION (CFO):  The RT PC 6151 Models 10, 15 and
115 and 6150 Models 20, 25 and 125 are eligible for CFO.
IBM CREDIT CORPORATION FINANCING:  Term leases and installment
payment plans for commercial, state, and local government customers
are available.
ELIGIBLE MACHINE UNDER ALTERNATIVE CERTIFICATION FOR IBM MACHINES:
No.
WARRANTY PERIOD:  One year.
       IBM On-site Repair warranty service is provided under the
Agreement for Purchase of IBM Machines.  To obtain warranty service,
the customer should call the IBM Service Exchange Communications
Center.
       Optional features, including the upgrade kit,  purchased and
installed with the IBM RT PC system unit, have the same warranty
period as the system unit in which they are installed.  If the
warranty period for the optional features, including upgrade kit, on
the IBM RT PC extends beyond that of the base system unit, the
customer is responsible for showing proof of purchase for warranty
service.
IBM MAINTENANCE AGREEMENT:  Maintenance service is available for the
IBM RT PC and installed features/options under the IBM Maintenance
Agreement.  The base period of maintenance service availability is
7:00 a.m. to 6:00 p.m., Monday through Friday.  Optional periods of
maintenance service are available for an additional charge.  The type
of maintenance service is IBM On-site Repair.
       On-site service is recommended for IBM RT PC-attached
products.
       The customer must ensure that the system unit is unlocked when
presented for service, and that the minimum recommended configuration
of system unit, keyboard, and supported display are installed and
available.
HOURLY SERVICE:  Hourly service is available at the IBM hourly rates
and minimum charges.
PRODUCT AVAILABILITY STATUS:  New product available for the IBM 6151
and 6150.
CUSTOMER SETUP:  The IBM RT PC and peripherals are customer setup
(CSU).  Options purchased separately are customer setup.
Under-the-cover features ordered with the initial system will be
installed and tested prior to delivery to the customer.  Detailed
setup instructions are included with each machine/option.
       Customer setup allowance for each new model (Models 115, 125
and B25) is one day.  Customer setup allowance for each adapter or
feature is the same as the machine in which the adapter is installed.
       Setup is available from IBM National Service Division at the
applicable IBM hourly service rates and minimum charges.
NOTE:  The IBM RT Personal Computer 5080 Attachment Adapter is
customer setup.  However, the corresponding attachment for the IBM
5080 Graphics System requires setup support by IBM National Service
Division personnel.
PRE-INSTALLATION TEST ALLOWANCE:  None
EDUCATIONAL ALLOWANCE:  A 20% educational allowance (except for
upgrade kit) is available to qualified educational
institution/hospital customers.  The educational allowance may not be
added to any other discount or allowance.
MACHINE GROUP:  A
IBM HOURLY SERVICE RATE CLASSIFICATION:  2
SPECIAL TERMS AND CONDITIONS FOR UPGRADE KIT
Conditions of Sale:  The upgrade kit is sold only for the purpose of
upgrading an IBM RT PC System Model 010, 015, 020, 025, or A25.  Sale
is limited to one kit per RT PC system.
       Upgrade kits are not eligible for any discounts, including
VPA, educational, or special bid.
CHARGES
                                                          IBM
                                                          ON-SITE
                                                          ANNUAL
                                                          MINIMUM
                                    MODEL/                MAINTENANCE
                        MACHINE     FEATURE     PURCHASE  CHARGE
DESCRIPTION             TYPE        NUMBER      PRICE     #9798
System Unit/Keyboard    6151        115       $10,600   $  825
System Unit/Keyboard    6150        125        16,100      925
System Unit             6150        B25        17,670    1,075
FEATURES FOR NEW MODEL SERIES OF THE IBM RT PC SYSTEM:
                                                          IBM
                                                          ON-SITE
                                                          ANNUAL
                                                          MINIMUM
                                    MODEL/                MAINTENANCE
                                    FEATURE     PURCHASE  CHARGE
DESCRIPTION                         NUMBER      PRICE     #9798
70 MB Extended ESDI
   Fixed-Disk                       3988       $2,395     $425
4 MB Fast Memory
   Expansion                        7004        3,800      ---
8 MB Fast Memory
   Expansion                        7008        5,000      ---
FEATURES FOR ANY MODEL OF THE IBM RT PC SYSTEM:
                                                          IBM
                                                          ON-SITE
                                                          ANNUAL
                                                          MINIMUM
                                    MODEL/                MAINTENANCE
                                    FEATURE     PURCHASE  CHARGE
DESCRIPTION                         NUMBER      PRICE     #9798
Megapel Display Adapter             7658       $4,500     $180
ACCESSORIES FOR ANY MODEL OF THE IBM RT PC SYSTEM:
                                                          IBM
                                                          ON-SITE
                                                          ANNUAL
                                                          MINIMUM
                                    MODEL/                MAINTENANCE
                                    FEATURE     PURCHASE  CHARGE
DESCRIPTION                         NUMBER      PRICE     #9798
ASCII Term. Cable
   (10/25 M-Pin)                    3913       $   70      ---
New Series Models
   Upgrade Kit                      61X6833     2,495      ---

       In the Compatibility section, add the following sentence to
the end of the second paragraph:  '6150 Models 20/25/A25, when
upgraded to Models 125/B25, support only one IBM 40MB fixed disk
drive.'
       In the Limitations section, add the following paragraph at the
end of the section:
   IBM 6150 Models 20/25/A25 being upgraded to Models 125/B25 can
   support only one IBM 40MB fixed disk drive.  The 40MB drive
   must be attached to the fixed disk drive adapter shipped with
   the original system.  Up to two IBM 70MB drives may be
   installed on the fixed disk drive adapter provided with the
   upgrade kit along with the single 40MB drive.  The Extended
   ESDI adapter in the upgrade kit can support up to a total of
   three 70MB fixed disk drives in all upgraded Model 20/25/A25s.

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