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This section has pictures of PCjr machines and some
accessories.
Note: I have tried to
note
the original source
of these pictures. If I have posted a picture that you own,
please
contact me and I will credit you or remove the picture according to
your wishes.
Model
4860-004 PCjr
(64KB RAM)
This is probably the rarest configuration of PCjr that
exists.
Most PCjrs came with a diskette drive and 128K which is the bare
minimum to make a useful DOS machine. With just 64K this
machine
is good for playing cartridge games or doing BASIC
programming.
(And you would have to save those programs to cassette.)
The blank faceplate covers the hole where the optional diskette drive
would be mounted. The dual cartridge slots are clearly
visible
below the blank faceplate. To the left of the cartridge slots
is
the hole for the infra-red keyboard receiver.
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Source:
Brutman, 2005
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Source: Unknown
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Model
4860-067 PCjr (128KB RAM, 1 diskette drive)
This is the expanded model of the PCjr featuring a diskette drive and
128KB of memory. It is shown with the PCjr Color Monitor
(4863)
and the updated keyboard.
The extra memory comes on a small card that plugs into a dedicated slot
on the motherboard. The diskette drive requires a controller
card, which also plugs into a dedicated slot on the motherboard.
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| Another
model 4860-067
PCjr. This picture
shows the "chiclet" keyboard which was shipped with the machine. |
Source: Unknown
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Source: Unknown
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This PCjr (also a 4860-067) is shown with the
"Chiclet"
keyboard, a
cartridge in the left cartridge slot, and the PCjr Compact
Printer.
The Compact Printer connected to the PCjr via the serial
port, which is unusual for a PC or clone. IBM
didn't include
a parallel port with the machine; it was an extra cost option. The
sidecar
would have attached to the right side of the machine (near the
cartridges)
and added about an inch to the width of the machine. |
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This is the layout of the PCjr keyboard. The
"chiclet" keyboard
is shown.
Source: PCjr Technical Reference, IBM
Corp, 1984
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Here are the first and second revisions of the IBM PCjr keyboard.
(Click the keyboards for a larger image.)

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| The "Chiclet" keyboard |
The revised keyboard |
Source for both: M Brutman, 2010
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These are PCjr program cartridges. The one on the
left is for
ColorPaint, which was a wonderful paint program at the time. It
could use a mouse, and it took full advantage of the PCjr's enhanced
video
capabilities. The one on the right is Cartridge
BASIC, which was an enhanced version of BASIC for the PCjr.
Source: M Brutman, 2000
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This is a line drawing of the PCjr diskette
drive.
Notice the
fan on the back of the unit, designed to keep the diskette media
cool.
The PCjr did not have a fan anywhere else.
Source: PCjr Technical Reference, IBM
Corp, 1984
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| A line drawing of a PCjr joystick.
Source: PCjr Technical Reference, IBM
Corp, 1984
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Source: PCjr Technical Reference, IBM Corp, 1984 |
A line drawing of a sidecar expansion
unit.
Sidecars
attached
to the side of the unit closest to the cartridge slots.
Commonly available sidecars added a parallel
printer
port and
extra
memory. Less common sidecars added speech synthesizers, and
connections
to an expansion unit that housed another floppy drive or even a hard
drive!
The protruding connection connected directly to the PCjr I/O bus.
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| The PCjr startup screen. Well, sort of. A real
PCjr would stop counting at 640KB. This image was doctored to show a
736KB count. A 736KB machine can exist, but the BIOS would
never count that high on the startup screen.
The color bar shows the 15 non-black colors that
the video subsystem could produce.
Source:
Brutman
2004
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The
Enhanced PCjr came with two
diskettes. The first "Exploring the IBM PCjr", which was part of a
series of diskettes designed to
introduce people to their PCs. (There was one for each member of the PC
family.) The PCjr version had incredible sound - Digital Learning
Systems (the
author) put some extra effort into the PCjr version.
My favorite part is in the diskette tutorial, on
the screen entitled
"Accidents Will Happen." A cute little catapillar marches across the
screen, opens its mouth to 3x it's body size, and takes a bite out
of a diskette to illustrate the point. You've just got to see
it ... :-) Another great part is the printer demo - they
simulate the IBM Graphics Printer right on the screen.
The second, the cover of which is pictured here,
was the
PCjr Sampler. This diskette had several little applications on it,
including a sample
word processor and an async comm program for a modem. The sampler
was a favorite for doing a demo because it would give you an idea of
what the machine was capable of; the software itself wasn't of much
use.
Notice the home/family focus of the illustration.
Also notice
the lack of the PCjr Color Display - those are all standard IBM Color
Graphics Displays, designed for a PC.
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