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I need help understanding a diagram

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The blue line in the schematic is called BUS and if you want to follow the
schematic, take a look at the names of the thin wire connected
to the BUS (blue wire) follow the bus and se if you can find a matching
name like A1. you use a bus to reduse the number of wires and
It's easy to follow. better structure of the schematic!

Hope this helps you


You will find that this is the standard way of drawing diagrams that use cpu/memory. It makes for a tidy drawing;. Good once you get used to it.

The blue line is a BUS which mean a collection of wire generally 4, 8, 12, 16, ... wires.

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