First post, by yjfy
History of Intel graphics card (Final version)
yjfy
This article is about the history of Intel's graphics and display chips based on hardware collections. In order to reflect the authority of this article, the intel graphics cards in the text are mostly representative engineering samples from myself and Tibetan friends. Thanks to the computer hardware collection, such rare computer hardware can get rid of destruction.
This article introduces the history of Intel graphics cards into four periods.
1. 12 years of drifting (1977-1988)
Intel's original graphics card is for VIDEO/GRAPHICS MODULE on Intel Single Board Computers, a display module with display capabilities. Although it is only the prototype of the graphics card, it has an important position in the history of Intel graphics. After Intel released several display chips, it was used by many manufacturers to make graphics cards, but Intel still disdain to enter the PC graphics market, because Intel's business focus at this time is memory and processor.
1.1 8275 Chip
Pictured above is Intel's first display-related chip C8275 CRT Controller, which is an engineering sample chip with a date of 7735, indicating that the C8275 chip first appeared in the 35th week of 77 (late mid-August). Used in Intel's iSBX270 VIDEO DISPLAY CONTROLLER MULTIMODULE Board. The iSBX 270 VDC contains 4K bytes of high speed static RAM.
The iSBX270 was well-known in the past and was also used on the Processor II 2217605132 Multibus card from non-intel Machine Technology Inc.
Later, Intel also introduced the 8275 chip upgrade version 8276 chip.It is small system CRT controller. It is meant to interface CRT raster scan displays with Intel 8085, 8086, 8088 microprocessors and 8051 single chip microcomputer. It has 4 types of cursor control, programmable screen and character format, 6 independent visual field attributes. It contains all necessary counters,buffers, raster timing circuitry and video control, etc.