VCB01 Video Controller: Difference between revisions
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The '''VCB01''' is a quad-height, 22 bit [[QBUS]] bit-mapped | The '''VCB01 Video Controller''' is a [[DEC card form factor|quad]]-height, 22 bit [[QBUS]] [[bit-mapped display]] option module ([[DEC part number]] '''M7602'''), providing [[workstation]] capability for Q22-bus systems. | ||
The bitmap memory (also called video memory), is 256 kB of [[MOS]] [[RAM]], residing in the Q22-bus address space. | The bitmap memory (also called video memory), is 256 kB of [[Metal Oxide Semiconductor|MOS]] [[RAM]], residing in the Q22-bus address space. | ||
In the [[VAXstation I]] and [[VAXstation II]], a subset (sometimes called the screen memory) of the bit-mapped video memory is displayed on a 48 cm (19 in) monochrome monitor (the [[VR100 Monochrome Monitor]]). | In the [[VAXstation I]] and [[VAXstation II]], a subset (sometimes called the screen memory) of the bit-mapped video memory is displayed on a 48 cm (19 in) monochrome [[video display|monitor]] (the [[VR100 Monochrome Monitor]]). | ||
The VCB01 relies on the [[CPU]] to generate all images stored in video memory. | The VCB01 relies on the [[Central Processing Unit|CPU]] to generate all images stored in video memory. | ||
The VCB01 also provides several basic I/0 functions, including: | The VCB01 also provides several basic I/0 functions, including: | ||
* [[Cursor]] controls | * [[Cursor]] controls | ||
* [[Mouse]] interface | * [[Mouse]] interface | ||
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{{semi-stub}} | {{semi-stub}} | ||
[[Category: QBUS Display Controllers]] | |||
Revision as of 23:45, 19 June 2022
The VCB01 Video Controller is a quad-height, 22 bit QBUS bit-mapped display option module (DEC part number M7602), providing workstation capability for Q22-bus systems.
The bitmap memory (also called video memory), is 256 kB of MOS RAM, residing in the Q22-bus address space.
In the VAXstation I and VAXstation II, a subset (sometimes called the screen memory) of the bit-mapped video memory is displayed on a 48 cm (19 in) monochrome monitor (the VR100 Monochrome Monitor).
The VCB01 relies on the CPU to generate all images stored in video memory.
The VCB01 also provides several basic I/0 functions, including:
