Difference between revisions of "CADR"
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| − | [[Image:  | + | [[Image:CADRmachine.jpg|thumb|right|200px|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.    | + | 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.  | 
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.  | ||
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| + | [[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]]  | ||
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==External links==  | ==External links==  | ||
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* [http://bitsavers.org/pdf/mit/cadr/ CADR] - [[Bitsavers]]  | * [http://bitsavers.org/pdf/mit/cadr/ CADR] - [[Bitsavers]]  | ||
* [https://github.com/hanshuebner/cadr2/tree/master/mit cadr2/mit/] - much MIT CADR material  | * [https://github.com/hanshuebner/cadr2/tree/master/mit cadr2/mit/] - much MIT CADR material  | ||
| − | * [http://www.unlambda.com/index.php?n=Main.Cadr Retrocomputing - MIT CADR Lisp Machines] -   | + | * [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/   | + | * [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/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]  | ||
* Images  | * Images  | ||
| − | ** [http://www.stupi.se/Bilder/pdp-10/jpg1/dscn2952  | + | ** [http://www.stupi.se/Bilder/pdp-10/jpg1/dscn2952.jpg CPU backplane]  | 
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** [http://www.stupi.se/Bilder/pdp-10/jpg1/dscn2945.jpg I/O box]  | ** [http://www.stupi.se/Bilder/pdp-10/jpg1/dscn2945.jpg I/O box]  | ||
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[[Category: Workstations]]  | [[Category: Workstations]]  | ||
Revision as of 15:14, 6 January 2024
The CADR was the first successful LISP machine, built by the 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.
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.
The Knight keyboard was used with the MIT-AI ITS machine and CADRs; this is a rendition of the layout
External links
- CADR - AI Memo 528
 - CADR - Bitsavers
 - cadr2/mit/ - much MIT CADR material
 - Retrocomputing - MIT CADR Lisp Machines - includes emulator, complete sources, and bootable disk images
 - LM-3 --- resurrecting the MIT CADR - contains much interesting historical material, as well as current simulation work
 - Images