A1000

The A1000 is the Amiga that started it all. It was the first Amiga model to hit the market way back in 1985. When it was released it wasn't called the A1000, but simply the Amiga. The unit was retroactively named the A1000 in 1987 when 2 new models were added to the family, being the A2000 and the legendary A500.


History

After having enjoyed huge success with its 8-bit powerhouse, the C64, the Amiga was Commodore's first foray into the 16-bit world. The A1000 was first shown to the public in July of 1985 and started appearing in shops in the U.S. in September of the same year. The Amiga was a major step forward compared to anything on the market at that time. It featured the Motorola 68000 as its main CPU and had several custom chips to handle things like audio and video, thereby offloading this task from the CPU, which allowed the Amiga to perform tasks nearly impossible on other computers like having a pre-emptive multitasking operating system with a graphical user interface (called Kickstart and Workbench respectively).

The A1000 did have its quirks though. The operating system routines were so buggy that Commodore decided not to implement them into a ROM chip. Instead they chose to supply the 256K Kickstart image on disk. The A1000 would request the Kickstart disk on power up and then proceed to load the Kickstart image into a specially reserved piece of RAM which was made read-only as soon as the Kickstart code had been transferred to it from disk. The reasoning behind this was that Commodore could release newer (and less buggy) versions of Kickstart in the future for use with the A1000. Users would simply use a different Kickstart disk to load the new OS version. 

Most gamers will recognize the hand holding the blue Workbench disk against a white background when A500 or A2000 Amiga's are switched on. Well, because the A1000 needed to load a Kickstart image before it could do anything useful it would display a hand holding a Kickstart disk instead. Only when the Kickstart image was loaded into RAM it would display the Workbench disk request. All Amiga's that were released after the A1000 already had the Kickstart code inside a ROM chip so it was available on power up (except for some A3000 models, that is). 

Collection

I have an A1000 in my collection which is the PAL version that was manufactured in Germany and features the Commodore logo on the case. 

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