Original Amiga chipset (OCS)

E200310
Amiga chipset family computer hardware platform graphics and sound chipset

The Original Amiga Chipset (OCS) is the first-generation custom graphics and sound hardware architecture used in early Commodore Amiga computers, renowned for its advanced multimedia capabilities in the mid-1980s.

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All labels observed (6)

Label Occurrences
Amiga Original Chip Set 2
Amiga custom chipset 1
Amiga graphics hardware 1

Statements (63)

Predicate Object
instanceOf Amiga chipset family ⓘ
computer hardware platform ⓘ
graphics and sound chipset ⓘ
alsoKnownAs OCS ⓘ
audioController Paula ⓘ
busWidth 16-bit ⓘ
colorPaletteSize 4096 ⓘ
designedFor home computers ⓘ
designedForCPU Motorola 68000 family ⓘ
surface form: Motorola 68000
developer Amiga Corporation (originally) ⓘ
surface form: Amiga Corporation

Commodore International ⓘ
displayController Denise ⓘ
dmaController Agnus ⓘ
graphicsController Agnus ⓘ
historicalSignificance pioneered advanced home computer graphics and sound in the 16-bit era ⓘ
introducedWith Commodore Amiga 1000 ⓘ
surface form: Amiga 1000
introductionYear 1985 ⓘ
mainComponent Agnus ⓘ
Denise ⓘ
Paula ⓘ
manufacturer Commodore International ⓘ
marketPosition high-end multimedia home computer chipset ⓘ
maxAudioSampleRate approximately 28 kHz ⓘ
maxChipRAM 1 MB in later OCS configurations ⓘ
512 KB in early OCS systems ⓘ
maxColorsHAM 4096 ⓘ
maxColorsOnScreen 32 from 4096 (OCS standard modes) ⓘ
64 in Extra Half-Brite mode ⓘ
maxResolution 640×400 interlaced (NTSC) ⓘ
640×512 interlaced (PAL) ⓘ
memoryType chip RAM ⓘ
notableFor advanced multimedia capabilities in the mid-1980s ⓘ
preemptive multitasking-friendly DMA design ⓘ
partOf Commodore Amiga computer architecture ⓘ
platform AmigaOS ⓘ
predecessor Lorraine prototype chipset ⓘ
soundChannels 4 ⓘ
soundOutput stereo ⓘ
soundResolution 8-bit ⓘ
soundType PCM audio ⓘ
standardResolution 320×200 (NTSC) ⓘ
320×256 (PAL) ⓘ
successor AGA ⓘ
Advanced Graphics Architecture ⓘ
ECS ⓘ
Enhanced Chip Set ⓘ
supportsFeature DMA for graphics and audio ⓘ
blitter ⓘ
copper coprocessor ⓘ
hardware scrolling ⓘ
hardware sprites ⓘ
multiple playfields ⓘ
raster interrupts ⓘ
supportsMode Extra Half-Brite ⓘ
HAM ⓘ
Hold-And-Modify ⓘ
bitplane graphics ⓘ
usedIn Commodore Amiga 1000 ⓘ
surface form: Amiga 1000

Commodore Amiga 2000 ⓘ
surface form: Amiga 2000

Commodore Amiga 500 ⓘ
surface form: Amiga 500

Amiga CDTV ⓘ
videoStandardsSupported NTSC color television standard ⓘ
surface form: NTSC

PAL ⓘ

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Commodore Amiga 1000 → chipset → Original Amiga chipset (OCS) ⓘ
Agnus → designedFor → Original Amiga chipset (OCS) ⓘ
this entity surface form: Amiga graphics subsystem
Agnus → belongsToFamily → Original Amiga chipset (OCS) ⓘ
this entity surface form: Amiga custom chipset
Super Denise → family → Original Amiga chipset (OCS) ⓘ
this entity surface form: OCS/ECS Amiga chipsets
Denise → partOf → Original Amiga chipset (OCS) ⓘ
this entity surface form: Amiga Original Chip Set
Scala MM400 → hardwareRequirement → Original Amiga chipset (OCS) ⓘ
this entity surface form: Amiga graphics hardware
Paula → partOf → Original Amiga chipset (OCS) ⓘ
this entity surface form: Amiga Original Chip Set