http://www.mentasm.com/~mramiga/files/tech/amigatec.shtml (Amiga Plus Extra No. 5/97, 05/1997)
Specifications for The Amiga range of computers along with expansion devices for each machine. Specifications on ports/slots and other connectors Power connector specifications A500/A1000 86 pin Expansion Bus Registers in the ( 8520's (CIA's) Zorro II expansion specification Zorro III expansion specification < more to come >
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| The Machine. The Amiga has come in many different designs over the years, from the A1000's sleek case with a keyboard garage underneath the main case ( the only computer to ever have one that I am aware of.) and the ultra compact design of the A1200 home personal computer to the large cavernous A4000T with tons of expansion room to suit any tastes. The CPU. The Amiga computer, since the Amiga 1000 has used Motorola CPU's. From the 16/32 bit 68000 to the fully 32 bit 68060 on to the PowerPC processors, the Amiga has always been on the cutting edge of processor power. Memory. The first Amiga 1000's came with 256K of ram ( later upgraded to 512K or 1 to 2 meg via third party expansion cards.) expandable to 8 megabytes of memory. The A500 also came with 512K. The A2000, CDTV, A600 and A3000 all came standard with 1 megabyte of chip memory ( upgradable to 2 megabytes of chip memory) expandable to 8 megabytes of fast ram, except in the case of the a3000 where one could add up to 16 megabytes. The A1200, CD32 and A4000 all came with 2 megabytes of chip ram, expandable to 8 and 16 megabytes of fast ram respectively. ( note the Amiga can address up to 4GB of ram.) Graphics/Sound. The Amiga since its release in 1985 has been noted for its graphic and sound capabilities. The original series of Amigas, ( A1000, A500, A2000) all used what is refereed to as the OCS ( Original Chip Set) ( with upgrades to ECS for the A500, and A2000 available.) At the time of the A1000 the other two major computer platforms being the Apple Macintosh and IBM compatible PC where left in the dust as multimedia came to the world. The bellow Table shows how the three matched up:
At the time the Amiga was a computer way beyond its time. Though todays the PC, Macintosh and Amiga computers are fairly evenly matched up with graphic cards and sound cards for all three computers. With the release of the A3000, CDTV, and A600 the ECS ( Enhanced Chip Set) was released offering much higher screen resolutions and a maximum of 16 colors in 640x400, (1280x400 max )chip and fast memory With the Release of the A1200, A4000/A4000T and CD32 Units theAGA ( Advanced Graphics Architecture) chipset came into play offering 256,000 colors ( 256 color in non-ham modes), SVGA screen resolutions and better overall performance. Custom Chips. Agnus: Animation < more to come > |
