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|released in 1989|
|CPU: CPU: 32-bit RISC architecture ARM2 8Mhz (A300 and A400 series, A3000) ; ARM3 25/33Mhz (A540/A5000/A4) ; ARM250 12 Mhz (A3010, A3020, A4000)|
MEMORY: 1-8Mb RAM
GRAPHICS: 12bit RGB palette (4096 colours) (12-bit) supporting 16 hardware palette registers. Resolutions from 160x256 to 640x512with with 4, 16 or 256 colours on screen. Also supported 1152x896 with 2 colours.
SOUND: 8 channels 8 bit logarithmic with 7 independent stereo positions
MEDIA/STORAGE: internal 3.5 FDD 1,44MB, internal 20-210MB HDD
|The Archimedes was Acorns' first general purpose home computer to be based on their own ARM architecture featuring RISC design with a 32-bit CPU running at the incredible for its time 4 MIPS CPU speed! The info inlcuded here are based on the A3000, 3010, A3020 and A4000/5000 models.|
The Archimedes was one of the most powerful home computers available during the late 1980s as its CPU was faster than the MC68000 microprocessors found in the more popular Commodore Amiga and Atari ST machines (and Mac). An 8 MHz 68000 had an average performance of roughly 1 MIPS for 16-bit workloads and 0.5 MIPS for 32-bit workloads, with peak performance of 2 MIPS for simpler 16-bit instructions. The 8 MHz ARM2 yielded 4.5 - 4.8 MIPS for 32-bit workloads in repeatable benchmark tests!
In graphics although the Archimedes series outperformed the Amiga series easily for 3D applications, the Amiga retained an edge in 2D due to Amiga's powerfull custom chips!
|12bit RGB 4096-colors palette (256 on screen)|
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