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80s RetroComputing

This page is primarily about my 80s PC collection.  For my 90s collection, go HERE.

My Collection Consists of:

2x PCjrs – one with 640k internal via Hotshot (detailed below) and another stock
3x XTs – 1 standard, 1 portable, and 1 custom project XT (will be detailed soon; currently rebuilding as of 07-14-2018)
IBM PS/2 286 model 30 (with 486 Upgrade CPU)
Generic 286 in IBM chassis
Large selection of vintage keyboards, AT, XT and PS/2
Vintage PS/2 mice
Various IBM options, some in shrink wrap, a bunch of ST-412 HDDs, and more.

VintagePC_1


IBM PCJr – jrHotshot + NEC V20

8MHz NEC V20 CPU
360k Half Height Floppy
640k RAM (Internal)
96KB CGA Plus graphics
SN76489 3-Voice Sound

The internals of the Jr.  From left to right you find the power supply, memory expansion, and floppy controller.

Jr’s floppy controller.

Jr’s 64kb memory card.

How do you get 640k in a PCjr without a sidecar?  Simple – a seriously crazy hack card!!  This card has a clock, V20 and 2 banks of memory…


…and it all fits right into the 8088 socket right under the floppy drive!!


Hardware Collection

VintagePC_2
IBM Model M2 PS/2 Clicky Keyboards

VintagePC_3
Generic AT/XT switchable clicky keyboard

VintagePC_4
IBM Model F XT clicky keyboard

VintagePC_5
IBM Modem M Keyboard (own 2)

PCjrPrinter
PCJr Printer

PCjrSticks
PCJr Joysticks, still in shrinkwrap

VintageCards_01
Unknown ISA card, contains IBM BIOS, RAM, CLOCK and more.

VintageCards_02
Very old modem

VintageCards_03
IBM XT Parallel card

VintageCards_04
IBM ASync card (RS-232 or serial)

VintageCards_05
Serial/Parallel/Clock card


Hercules Graphics Card (Sold On eBay)

VintageCards_07
360k Floppy Diskette Controller

VintageCards_08Hayes SMARTMODEM 1200B

VintageCards_09
Hayes SMARTMODEM 2400B

VintageCards_10
Floppy Controller (Supports 360k, 1.2MB, 720k, 1.44MB)

VintageCards_11
IBM Serial Interface Card

VintageCards_12

VintageCards_13

VintageCards_14

VintageCards_15

VintageCards_16Memory Expansion Card for XT

VintageCards_17IBM Monochrome display adapter (Sold On eBay)

VintageCards_18IBM XT Prototype Card (Sold On eBay)

VintageCards_19IBM CGA Card


A Seagate ST412 hard drive.  It also holds 10 megabytes


Seagate ST11 MFM hard drive controller.


VGA and EGA combo video adapter

Tandon TM 501 hard drive.  It holds 5 megabytes

Reverse side of the Tandon drive.

XT Expansion chassis boards. (Sold On eBay)

Davong hard disk controller. (Sold On eBay)

Original IBM CGA video card. (Sold On eBay)

EGA video card

My first serious computer.  I wrote my first ever program on this.  It was a 10MHz 286, made by the Korean Hyosung Computer company.

Seagate ST225 – 20mb MFM drive.

MiniScribe!!!  IIRC, it holds 40mb and is MFM.

Reverse side of the MiniScibe.  A 3.5″ drive with a stepper…I haven’t seen many of these.  It’s like a baby ST-412.


IBM 56×4927 8-Bit Coax Network Card S123


Microsoft InPort 8-bit BUS Mouse Card 900-255-018 Rev G


W86855AF Winbond 64kb Hercules MDC Video Printer Card 8-Bit


Compaq 000990 Serial Parallel Interface Card


Almost 100 megs !