Posted By
Litwr
on 2016-05-22
13:04:55
|  Re: A mathematical demo
The history of 8-bit computers makes me crazy. IMHO It is mostly of passions, politics, marketing, etc. Technology was considered in last turn.  How to answer the next questions and to keep reason?
1. How was it possible that slow and ugly z80 was so widely used? However Bill Gates showed his personal favor in z80...
2. How was it possible that the fastest 8-bit PC was made at 1981 (BBC Micro) and all later computers were slower and slower? C128 in VIC mode is even slower than C64! BBC Micro video steals 50% of CPU power. So C128 with VDC might be 2-3 times faster with the same technological level. Was it the result of IBM PC and the market protection measures? BTW 6502 at 4 MHz is faster than 8088 at 5 MHz.
3. Why CP/M for 6502 was not made? It is very easy to convert 8080 codes to 6502... The size of code is small...
4. Why Commodore did not try to make faster their expensive disk drives?
5. Why VIC-II was not upgraded?
MIRKOSOFT, thanks for information about two z80 CPUs at C128. IMHO it was much better to have C64 for VIC and SID software and Amstrad CPC or PCW for CP/M and text processing for almost the same price.
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