Relic Information query matches

Matching on query: Unique id = 68/99, Name = any, Associated machine = any, class = any


Unique id/year of acquisition: 68/99
Name: EDSAC II chassis
EDSAC II chassis
EDSAC II chassis
EDSAC II chassis
Other nos on object: none
Inscription: EDSAC II CHASSIS 7 No 10 (printed on front), 22/7/65 (handwritten on front),Serviceable 22/7/65 PJB (handwritten on label on top)
Dimensions: 690x180x95
Description: Grey metal rack. Upper section with space for 36 glass valves, not all identical, several missing. Lower section with components, resistors etc. Front painted black, with handle connected to rod running whole length terminating in large screw at rear. Rear has large number of sockets.
Class: computer
Machine: EDSAC II
Condition: good
Notes:
EDSAC II was made of a number of such plug-in units, the modular construction allowing easy maintenance. The bulk of the machine consisted of 41 identical long chassis, each of which was one part of the arithmetic unit and contained six one bit registers, an adder, a complimenter, and connections to the rest of the machine. There were other shorter chassis each of which controlled one bit of the magnetic core memory. The form of construction is such that air could be blown through sideways to keep the components cool (in contrast to the EDSAC I which relied on natural circulation of air round the valves). The screw at one end and turn knob at the other were used to physically force a plug into a socket to make reliable contacts.
See also: 5/97
See also: 36/97
See also: 50/97


Unique id/year of acquisition: 68/99
Name: EDSAC II chassis
EDSAC II chassis
Group id: 2
Other nos on object: none
Inscription: EDSAC II CHASSIS 7 No 7 (printed on front), other labels but too faded to read.
Dimensions: 690x180x95
Description: Grey metal rack. Upper section with space for 36 glass valves, not all identical, several missing. Lower section with components, resistors etc. Front painted black, with handle connected to rod running whole length terminating in large screw at rear. Rear has large number of sockets.
Class: computer
Machine: EDSAC II
Condition: poor, rusty
Notes:
EDSAC II was made of a number of such plug-in units, the modular construction allowing easy maintenance. The bulk of the machine consisted of 41 identical long chassis, each of which was one part of the arithmetic unit and contained six one bit registers, an adder, a complimenter, and connections to the rest of the machine. There were other shorter chassis each of which controlled one bit of the magnetic core memory. The form of construction is such that air could be blown through sideways to keep the components cool (in contrast to the EDSAC I which relied on natural circulation of air round the valves). The screw at one end and turn knob at the other were used to physically force a plug into a socket to make reliable contacts.
See also: 5/97
See also: 36/97
See also: 50/97


Number of matches = 2 Copyright University of Cambridge Computer Laboratory, 1999. All rights reserved.