25 lines
683 B
Markdown
25 lines
683 B
Markdown
# Computer
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## Aims and challenges
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Make a fully functionnal computer from scratch.
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The computer will be composed of :
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- A CPU
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- Some RAM
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- Some ROM
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- A controller to the system, a "bios".
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At first every part will be the "industrial" version :
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- The CPU made with an (2) ALU IC (74181 ?)
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- The RAM a chip (UM61256BK-20 from 1993)
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- The ROM another chip (D27C010 from 1986 !)
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Then the aim is to replace them with made from scratch versions.
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For the moment only the RAM is meant to be replaced with homemade magnetic core RAM.
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## Architecture choices
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The computer is in 8 bits since the ALU, RAM and ROM are meant to be in 8 bits.
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The CPU have ports for inputs / outputs.
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