Difference between revisions of "LINC-8"

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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 memory (the LINC acted as a DMA peripheral to the PDP-8, using the PDP-8 data break mechanism). A combined console allowed control of both [[CPU]]s.
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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]] (the original model's [[Central Processing Unit|CPU]]) 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 CPUs.
  
Like the LINC, it included a video display (512x512 pixels), 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).
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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-drive 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.
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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.
  
==Further reading==
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Like its PDP-8, the LINC of the LINC-8 was also constructed of discrete [[transistor]] [[FLIP CHIP]]s, mostly R- and S-series, in [[DEC card form factor|standard-length single-height]] (width) format, with a few dual-height.
  
Detailed information is given in:
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It was later replaced as a product for DEC by the [[PDP-12]], which had the same functionality in a more integrated form.
  
* "Small Computer Handbook", 1967 edition
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==Images==
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[[Image:LINC-8 RCS'RI.jpg|400px|LINC-8 at the Retro-Computing Society of Rhode Island]]
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<!-- ==See also==
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<!-- ==Further reading==
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==External links==
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* [http://www.bitsavers.org/pdf/dec/linc8/ linc8] - LINC-8 at Bitsavers
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** [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
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* [https://www.pdp8online.com/images/linctape-images/linc-8-dial.shtml Images of LAP6 LINCtapes used on a LINC 8] - copies of tape contents
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[[Category: Minicomputers]]
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[[Category: Personal Computers]]
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[[Category: PDP-8s]]
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[[Category: 12-bit Computers]]

Latest revision as of 12:46, 11 July 2023

The LINC-8 was a computer produced by DEC for use in laboratory settings; it included both a PDP-8 (the original model's CPU) 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.

Like its PDP-8, the LINC of the LINC-8 was also constructed of discrete transistor FLIP CHIPs, mostly R- and S-series, in standard-length single-height (width) format, with a few dual-height.

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