IBM CORPORATION

PS/2 MODEL 25 TYPE 1

Processor               8086
Processor Speed         8MHz
Chip Set                None
Max. Onboard DRAM       640KB
Cache                   None
BIOS                    IBM
Dimensions              355mm x 304mm
I/O Options             Serial port, parallel port, pointing device
                        connector, video port, IDE interface, floppy drive
                        interface, earphone connector
NPU Options             8087

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  Pointing device            J1       Fan                          J8

  Keyboard                   J2       Keylock                      J10

  Parallel port              J3       IDE interface                J11

  Video port                 J4       Floppy drive interface       J12

  Serial port                J5       Earphone connector           J13

  Riser card                 J6

                      DRAM CONFIGURATION

      Size          Bank 0          Bank 1       Parity (P-1)

     512KB       (2) 256K x 9        NONE            NONE

     640KB       (2) 256K x 9      (4) 4464        (2) 4164