Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


Ready prompt T-shirts!

see details
ZX Spectrum T-shirts!

see details
Spiral program T-shirts!

see details
Atari joystick T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
C64 maze generator T-shirts!

see details
Atari ST bombs T-shirts!

see details
Moon Lander T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Breakout T-shirts!

see details
Shooting gallery T-shirts!

see details
Vector ship T-shirts!

see details
Pixel adventure T-shirts!

see details

I > IBM  > PS/1   


Please help us improve this description by sending us more info!

The PS/1 was IBM's return to the home computing market. It was the successor to the IBM PCjr, although it was compatible with IBM's bussines systems. The PS/1 was a propriatary system at first, but standard components were used later on. The later models included "Rapid Resume" a standby feature.

The system uses a LPX form factor (layout). Everything was built into the motherboard and had a four expansion slots of 16bit ISA but on a riser card. The memory was 72pin simms.

For the 486SX model for example, the CPU is integrated onto the motherboard but there is a socket3 that is empty. Apparently it is possible to put in another 486 CPU and the system disables the built-in CPU, which is not possible with the 386 model.

The software was Windows 3.1 and MS-DOS 6.2 on these systems. There is a bootloader from IBM that let you select ether to boot into DOS or Windows.

Contributors : Nick, Leland

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.
TYPE  Professional Computer
YEAR  1990
KEYBOARD  full stroke keyboard with numeric keypad and function keys
CPU  Original model: Intel 80286
Later models: 386sx, 486sx, 486dx, 486dx2
SPEED  Original model: 10 MHz
Later models: from 10 MHz to 66 MHz
RAM  Original model: 512 KB (max. 1 MB)
Later models: from 1 MB to 64 MB
GRAPHIC MODES  Original model: VGA modes
Later models: sVGA modes
I/O PORTS  Parallel port, ISA slots
BUILT IN MEDIA  3.5'' Floppy disc drive + optional hard disk depending models
OS  originally PC-DOS 4.01, later IBM-DOS
POWER SUPPLY  Power supply built-in
PERIPHERALS  printer, expansion unit, hard drives, 5.25'' disk drive, etc.
PRICE  Unknown

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -