quartz/content/notes/bus.md

title	aliases	tags
bus		cosc204

• data bus

• address bus

• control bus

• conmmunicate between parts of the computer

• only one transmitter at a time

• only addressed device can respond

• 2 levels

  • internal
  • external

• memory size is dependent on bus size

  • 2n bytes for n-lines on the address bus
    • 2^8=256B, 2^16=64KB, 2^32=4GB, 2^64=16EB