Difference between revisions of "CADR"

From Computer History Wiki
Jump to: navigation, search
m (→‎External links: +CADR Tester Close Up at MIT AI Lab)
m (→‎External links: Date for TK's Master's thesis)
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
 
[[Image:CADRmachine.jpg|thumb|right|200px|A CADR]]
 
[[Image:CADRmachine.jpg|thumb|right|200px|A CADR]]
  
−
The '''CADR''' was the first successful [[LISP machine]], built by the [[MIT Artificial Intelligence Laboratory|MIT AI Lab]] as a follow-on to the prototype [[CONS]] machine. Many were produced by the AI Lab; several startups (including [[Symbolics]] and [[LMI]]) produced direct descendants.
+
The '''CADR''' was the first successful [[LISP machine]], built by the [[MIT Artificial Intelligence Laboratory|MIT AI Lab]] as a follow-on to the prototype [[CONS]] machine. Production apparently started in 1978; as of December, 1978, four were operational.
  
 
Physically, the [[microcode]]d [[Central Processing Unit|CPU]] was a single huge [[wire-wrap]] swing-out bay mounted in the front of an [[H960 rack]]. A separate [[backplane]] held [[main memory]] cards, [[input/output|I/O]] cards, etc.
 
Physically, the [[microcode]]d [[Central Processing Unit|CPU]] was a single huge [[wire-wrap]] swing-out bay mounted in the front of an [[H960 rack]]. A separate [[backplane]] held [[main memory]] cards, [[input/output|I/O]] cards, etc.
 +
 +
Many were produced by the AI Lab; several startups (including [[Symbolics]] and [[LMI]]) produced direct descendants.
  
 
[[Image:Knight-keyboard.png|thumb|left|150px|The Knight keyboard was used with the MIT-AI [[Incompatible Timesharing System|ITS]] machine and CADRs; this is a rendition of the layout]]
 
[[Image:Knight-keyboard.png|thumb|left|150px|The Knight keyboard was used with the MIT-AI [[Incompatible Timesharing System|ITS]] machine and CADRs; this is a rendition of the layout]]
−
 
+
 
 
<br clear=all>
 
<br clear=all>
  
Line 18: Line 20:
 
* [http://www.unlambda.com/index.php?n=Main.Cadr Retrocomputing - MIT CADR Lisp Machines] - includes emulator, complete sources, and bootable disk images
 
* [http://www.unlambda.com/index.php?n=Main.Cadr Retrocomputing - MIT CADR Lisp Machines] - includes emulator, complete sources, and bootable disk images
 
* [https://tumbleweed.nu/lm-3/ LM-3 --- resurrecting the MIT CADR] - contains much interesting historical material, as well as current simulation work
 
* [https://tumbleweed.nu/lm-3/ LM-3 --- resurrecting the MIT CADR] - contains much interesting historical material, as well as current simulation work
 +
** Tom Knight, [https://tumbleweed.nu/r/lm-3/uv/knight-thesis.html Implementation of a List Processing Machine], January, 1979 - Knight's PhD thesis; covers the hardware and the macroprocessor which the standard microcode implements <!-- https://dspace.mit.edu/handle/1721.1/16033 -->
 
** [https://tumbleweed.nu/lm-3/history.html Lisp Machine System Release History]
 
** [https://tumbleweed.nu/lm-3/history.html Lisp Machine System Release History]
 
** [https://tumbleweed.nu/lm-3/lmman-editions.html Lisp Machine Manual Editions]
 
** [https://tumbleweed.nu/lm-3/lmman-editions.html Lisp Machine Manual Editions]

Latest revision as of 19:18, 22 September 2025

A CADR

The CADR was the first successful LISP machine, built by the MIT AI Lab as a follow-on to the prototype CONS machine. Production apparently started in 1978; as of December, 1978, four were operational.

Physically, the microcoded CPU was a single huge wire-wrap swing-out bay mounted in the front of an H960 rack. A separate backplane held main memory cards, I/O cards, etc.

Many were produced by the AI Lab; several startups (including Symbolics and LMI) produced direct descendants.

The Knight keyboard was used with the MIT-AI ITS machine and CADRs; this is a rendition of the layout


External links

Retrieved from "https://gunkies.org/w/index.php?title=CADR&oldid=36732"