PDP-11/23
Inventory No: 0192
Serial No: AYO 4665
A PDP-11/23 in a floor-mount case. One of the RX50 disk drive doors is open showing the unique design of these drives. 5¼ inch floppy diskettes were delicate and with the more usual design of drive it was quite easy to fold, crease and thus destroy the diskette when inserting it. With this design, such damage was less common.
PDP-11/23 - Front cover removed
Inventory No: 0192
The same machine with the front cover removed. At the top, the control panel has lights for RUN and DC OK, then HALT, RESTART, READY and WRITE PROTECT buttons. The latter inhibits writes to fixed disk 0.
PDP-11/23 - Removed from its mounting case
Inventory No: 0192
The computer has been removed from the floor-mount casing, showing the RD51 disk drive and the RX50 twin floppy disk drive.
PDP-11/23 - Opened
Inventory No: 0192
Looking vertically down onto the opened-up PDP-11/23. On the right can be seen the disks and a curved fan shroud, while in the centre is the backplane with the KDF11-B (M8189) processor in the top slot. The H7864 power supply is at top left with applied white, red and yellow labels.
