| Bus | |||||||||||||||
| Bus consists of 1 or more wires | |||||||||||||||
| Real computer has multiple buses, for example: data, address, control | |||||||||||||||
| Size of bus: number of wires | |||||||||||||||
| B31-0 can be used to indicate 32 wires in the bus | |||||||||||||||
| B20-16 can be used to indicate a subset of wires | |||||||||||||||
|
|||||||||||||||
| Slash indicates multiple wires and the number indicates how many | |||||||||||||||
| Bus allows any number of devices to connect, but only 1 may write at any given time | |||||||||||||||
| Why use bus? | |||||||||||||||
| Alternative: connect all pairs of devices | |||||||||||||||
| Requires order of N2 connections | |||||||||||||||