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What (who) is graphics chip - definition

AMIGA GRAPHIC CHIPSET

AA chipset; Aa chipset; Advanced Graphics Architecture; Alice (computer chip); Lisa (computer chip); Amiga AGA

Chip (name)

GIVEN NAME

Chip (nickname)

Chip is an English given name and nickname in the United States, which is often a diminutive form of Charles or Christopher. Notable people referred to by this name include the following:

https://en.wikipedia.org/wiki/Chip_(name)

Silicon Graphics, Inc.

FORMER AMERICAN COMPANY

Silicon Graphics, Incorporated; Silicon Graphics Inc.; Silicon Graphics workstation; Silicon Graphics workstations; Silicon Graphics, Inc.; Silicon Graphics Incorporated; SGICQ; Silicon Graphics Inc

<company> (SGI) Manufacturer of workstations and software for graphics and image processing. SGI was founded by Dr. James H. Clark, who left some time before May 1994 to head Mosaic Communications Corporation. Quarterly sales $433M, profits $44M (Aug 1994). http://sgi.com/. (1994-09-26)

System on a chip

TYPE OF INTEGRATED CIRCUIT; INTEGRATION OF THE FUNCTIONS OF A SYSTEM ON A CHIP

System-on-Chip; System on chip; System on Chip; System On Chip; Socware; Computer on a chip; Radio-on-a-chip; System-on-chip; Computer-on-a-chip; System on a Chip; System-on-a-Chip; System On a Chip; System-on-a-chip; Systems on a Chip; Systems on Chip; Systems on chip; Systems-on-chip

A system on a chip or system-on-chip (SoC) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include a central processing unit (CPU), memory interfaces, on-chip input/output devices, input/output interfaces, and secondary storage interfaces, often alongside other components such as radio modems and a graphics processing unit (GPU) – all on a single substrate or microchip.

https://en.wikipedia.org/wiki/System_on_a_chip

Wikipedia

Amiga Advanced Graphics Architecture

Amiga Advanced Graphics Architecture (AGA) is the third-generation Amiga graphic chipset, first used in the Amiga 4000 in 1992. Before release AGA was codenamed Pandora by Commodore International.

AGA was originally called AA for Advanced Architecture in the United States. The name was later changed to AGA for the European market to reflect that it largely improved the graphical subsystem, and to avoid trademark issues.

AGA is able to display graphics modes with a depth of up to 8 bits per pixel. This allows for 256 colors in indexed display modes and 262,144 colors (18-bit) in Hold-And-Modify (HAM-8) modes. The palette for the AGA chipset has 256 entries from 16,777,216 colors (24-bit), whereas previous chipsets, the Original Chip Set (OCS) and Enhanced Chip Set (ECS), only allow 32 colors out of 4096 or 64 colors in Amiga Extra Half-Brite (EHB mode). Other features added to AGA over ECS are super-hi-res smooth scrolling and 32-bit fast page memory fetches to supply the graphics data bandwidth for 8 bitplane graphics modes and wider sprites.

AGA is an incremental upgrade, rather than the dramatic upgrade of the other chipset that Commodore had begun in 1988, the Amiga Advanced Architecture chipset (AAA), lacking many features that would have made it competitive with other graphic chipsets of its time. Apart from the graphics data fetches, AGA still operates on 16-bit data only, meaning that significant bandwidth is wasted during register accesses and copper and blitter operations. Also the lack of a chunky graphics mode is a speed impediment to graphics operations not tailored for planar modes, resulting in ghost artifacts during the common productivity task of scrolling. In practice, the AGA HAM mode is mainly useful in paint programs, picture viewers, and for video playback. Workbench in 256 colors is much slower than ECS operation modes for normal application use; a workaround is to use multiple screens with different color depths. AGA lacks flicker free higher resolution modes, being only able to display 640 × 480 at 72 Hz flicker-free operation. 800 × 600 mode is rarely used as it can only operate at a flickering 60 Hz interlaced mode. In contrast, higher-end PC systems of this era can operate 1024 × 768 at 72 Hz with a full 256-color display. AGA's highest resolution is 1440 × 580 (262 144 colors) in interlaced 50 Hz PAL mode, when overscan is used.

These missed opportunities in the AGA upgrade contributed to the Amiga ultimately losing technical leadership in the area of multimedia. After the long-delayed AAA was finally suspended, AGA was to be succeeded by the Hombre chipset, but this was ultimately cancelled due to Commodore's bankruptcy.

AGA is present in the CD32, Amiga 1200, and Amiga 4000.

https://en.wikipedia.org/wiki/Amiga Advanced Graphics Architecture

Examples of use of graphics chip

1. Graphics chip designer ATI Technologies Inc. posted lower third–quarter results on Thursday, in line with a recent warning, but cut its estimate for fourth–quarter sales.

2. Graphics chip designer ATI Technologies Inc. posted lower third–quarter results on Thursday that were in line with a recent warning that cited a shift in its sales mix as computer makers bought more low–margin chips.

3. Shares of ATI Technologies Inc. fell to their lowest point in about 18 months on Tuesday, a day after the graphics chip designer cut its third–quarter sales forecast and said it expects a worse than expected fourth quarter.

4. Graphics chip designer ATI Technologies Inc. posted a third–quarter loss on Thursday, in line with a recent warning, and cut its estimate for fourth–quarter sales to reflect growing caution.

5. Graphics chip designer ATI Technologies dropped C$1.45, or '.2 percent, to C$14.26 after it posted lower third–quarter results that were in line with a recent warning, but cut its estimate for fourth–quarter sales. ($1=$1.23 Canadian)