Professional Graphics Adapter - Definition. Was ist Professional Graphics Adapter
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Was (wer) ist Professional Graphics Adapter - definition

VIDEO SUBSYSTEM BUILT INTO THE MOTHERBOARD OF THE IBM PS/2 MODEL 30
Multicolor Graphics Adapter; IBM Multicolor Graphics Adapter; IBM Multi-Color Graphics Array; IBM Multicolor Graphics Array; Multicolor Graphics Array; Multi-Color Graphics Adapter

Professional Graphics Adapter      
<graphics, specification> (PGA) A computer video {display standard} produced by IBM for early CAD applications. It had a resolution of 640x400 pixels. (1997-04-25)
Color Graphics Adapter         
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  • Back of a CGA Video Adapter board, with the RCA composite output connector visible on the right
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  • alt=
  • 80-column text on RGB (left) vs. composite monitor (right)
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  • DE-9 connector seen when looking at the back of a PC
  • Title screen of PakuPaku, a [[Pac-Man]] clone that uses 160×100 mode
  • A single big "pixel" in 160×100 mode. This is the two top rows of half of character 221. Note the eight constituent non-square pixels and the overall 1:1.2 aspect ratio.
COMPUTER DISPLAY STANDARD
Color graphics adapter; Color Graphics Adaptor; Colour Graphics Adapter; IBM Color Graphics Adapter; Color/Graphics Adapter; CGA graphics; CGA composite mode; GRAFTABL (DOS command); GRAFTABL (command); GRAFTABL; CGA display; CGA (IBM); IBM CGA; CGA palettes; CGA monitor; Color Graphics Array
<hardware, graphics> (CGA) One of IBM's earliest hardware video display standards for use in IBM PCs. CGA can display 80*25 or 40*25 text in 16 colors, 640*200 pixels of graphics in two colors or 320*200 in four colors (IBM PC video modes 0-6). It is now obsolete. (1995-11-11)
graphics card         
  • [[AMD]] [[Radeon RX 6900 XT]]
  • ISA 8-bit (XT) interface]].
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  • DE-15]])
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  • [[Digital Visual Interface]] (DVI-I)
  • Classical desktop computer architecture with a distinct graphics card over [[PCI Express]]. Typical bandwidths for given memory technologies, missing are the [[memory latency]]. [[Zero-copy]] between GPU and CPU is ''not possible'', since both have their distinct physical memories. Data must be copied from one to the other to be shared.
  • [[DisplayPort]]
  • [[Video-in video-out]] (VIVO) for S-Video (TV-out), Digital Visual Interface (DVI) for high-definition television (HDTV), and DE-15 for Video Graphics Array (VGA)
  • [[High-Definition Multimedia Interface]]
  • a DisplayPort, HDMI and two DVI ports}}
  • HSA]])
  • Integrated graphics with ''partitioned main memory'': a part of the system memory is allocated to the GPU exclusively. Zero-copy is not possible, data has to be copied, over the system memory bus, from one partition to the other.
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  • A half-height graphics card
  • Radeon HD 7970]] with the main heatsink removed, showing the major components of the card. The large, tilted silver object is the GPU die, which is surrounded by RAM chips, which are covered in extruded aluminum heatsinks. Power delivery circuitry is mounted next to the RAM, near the right side of the card.
EXPANSION CARD WHICH GENERATES A FEED OF OUTPUT IMAGES TO A DISPLAY
Video card; Graphics controller; Display adapter; Graphics adapter; Video adapter; Graphics Card; Video Adapter; Graphics adaptor; Video Card; Graphic card; Graphics cards; Video cards; Graphic cards; Video board; Video boards; Video display board; Video display boards; Display adapters; Video adapters; Graphics adapters; Graphic adapter; Graphic adapters; 3D graphics card; Video controller; Video graphics board; Video display card; Graphics board; Videocard; Graphic driver; Graphics engine (hardware); Display card; Video display adapter; Graphics accelerator card; Video adapter card; Display cards; Discrete graphics; GFX Card; Discrete GPU; DGPU

Wikipedia

Multi-Color Graphics Array

The Multi-Color Graphics Array or MCGA is a video subsystem built into the motherboard of the IBM PS/2 Model 30, introduced on April 2, 1987, and Model 25, introduced later on August 11; no standalone MCGA cards were ever made.

The MCGA supports all CGA display modes plus 640×480 monochrome at a refresh rate of 60 Hz, and 320×200 with 256 colors (out of a 18-bit RGB palette of 262,144) at 70 Hz. The display adapter uses a DE-15 connector.

MCGA is similar to VGA in that it had a 256-color mode (the 256-color mode in VGA was sometimes referred to as MCGA) and uses 15-pin analog connectors. The PS/2 chipset's limited abilities prevents EGA compatibility and high-resolution multi-color VGA display modes.

The tenure of MCGA was brief; the PS/2 Model 25 and Model 30 were discontinued by 1992, and no manufacturer produced a clone of this display adapter except for Epson Equity Ie and Epson PSE-30, since the VGA standard introduced at the same time was considered superior.