LINC-8: Difference between revisions

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The '''LINC-8''' was a computer produced by [[Digital Equipment Corporation|DEC]] for use in laboratory settings; it included both a [[PDP-8]] and a [[LINC]] computer, which shared access to the PDP-8's [[main memory]] (the LINC acted as a [[Direct Memory Access|DMA]] peripheral to the PDP-8, using the PDP-8 [[data break]] mechanism). A combined [[front panel]] allowed control of both [[Central Processing Unit|CPU]]s.
The '''LINC-8''' was a computer produced by [[Digital Equipment Corporation|DEC]] for use in laboratory settings; it included both a [[PDP-8]] and a [[LINC]] computer, which shared access to the PDP-8's [[main memory]] (the LINC acted as a [[Direct Memory Access|DMA]] peripheral to the PDP-8, using the PDP-8 [[data break]] mechanism). A combined [[front panel]] allowed control of both [[Central Processing Unit|CPUs]].


Like the LINC, it included a video [[display]] (512x512 pixels [[resolution]], but not a [[bit-mapped display]]), analog inputs, and [[LINC tape]] drives (all attached to the LINC); it could also include any of the standard PDP-8 [[peripheral]]s (attached to the PDP-8).
Like the LINC, it included a video [[display]] (512x512 pixels [[resolution]], but not a [[bit-mapped display]]), analog inputs, and [[LINC tape]] drives (all attached to the LINC); it could also include any of the standard PDP-8 [[peripheral]]s (attached to the PDP-8).


Special [[interrupt]]-driven code ('PROGOFOP' - 'program of operation') in the PDP-8 allowed code running in the LINC access to PDP-8 resources; the PDP-8 likewise had access to the resources of the LINC (e.g. the display). When the PDP-8 was in control, the LINC was halted until the PDP-8 wanted something done, whereupon an interrupt started the LINC running, to perform the desired action.
Special [[interrupt]]-driven code ('PROGOFOP' - 'program of operation') in the PDP-8 allowed code running in the LINC access to PDP-8 resources; the PDP-8 likewise had access to the resources of the LINC (e.g. the display). When the PDP-8 was in control, the LINC was halted until the PDP-8 wanted something done, whereupon an interrupt started the LINC running, to perform the desired action.
It was later replaced as a product for DEC by the [[PDP-12]], which had the same functionality in a more integrated form.
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==Images==
==Images==
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[[Image:LINC-8 RCS'RI.jpg|400px|LINC-8 at the Retro-Computing Society of Rhode Island]]
[[Image:LINC-8 RCS'RI.jpg|400px|LINC-8 at the Retro-Computing Society of Rhode Island]]


==See also==
<!-- ==See also==
 
* [[PDP-12]]
 
==Further reading==
 
Detailed information is given in:


* "Small Computer Handbook", 1967 edition
<!-- ==Further reading==
-->
==External links==
* [http://www.bitsavers.org/pdf/dec/linc8/ linc8] - LINC-8 at Bitsavers
** [http://www.bitsavers.org/pdf/dec/pdp8/handbooks/SmallComputerHandbook_Mar67.pdf Small Computer Handbook, 1967 edition] - has a section with detailed information about the LINC-8
* [https://www.pdp8online.com/images/linctape-images/linc-8-dial.shtml Images of LAP6 LINCtapes used on a LINC 8] - copies of tape contents


[[Category: Minicomputers]]
[[Category: Minicomputers]]
[[Category: Personal Computers]]
[[Category: Personal Computers]]
[[Category: PDP-8s]]
[[Category: PDP-8s]]

Revision as of 12:22, 19 April 2022

The LINC-8 was a computer produced by DEC for use in laboratory settings; it included both a PDP-8 and a LINC computer, which shared access to the PDP-8's main memory (the LINC acted as a DMA peripheral to the PDP-8, using the PDP-8 data break mechanism). A combined front panel allowed control of both CPUs.

Like the LINC, it included a video display (512x512 pixels resolution, but not a bit-mapped display), analog inputs, and LINC tape drives (all attached to the LINC); it could also include any of the standard PDP-8 peripherals (attached to the PDP-8).

Special interrupt-driven code ('PROGOFOP' - 'program of operation') in the PDP-8 allowed code running in the LINC access to PDP-8 resources; the PDP-8 likewise had access to the resources of the LINC (e.g. the display). When the PDP-8 was in control, the LINC was halted until the PDP-8 wanted something done, whereupon an interrupt started the LINC running, to perform the desired action.

It was later replaced as a product for DEC by the PDP-12, which had the same functionality in a more integrated form.

Images

LINC-8 at the Retro-Computing Society of Rhode Island

External links