Routing data

What is serial data transmission?

This is were data is transferred along a single wire, one bit at a time

What is parallel data transmission?

This is where data is transferred along multiple wires, bits are transferred in parallel

Draw the short hand for 8 wires

Multiplexer

Define multiplexer

This is a devices that can select one of multiple data inputs, and can output it along a single line.

Draw a two way multiplexer

Draw it with NAND gates

Draw a 2x2 multiplexer

Draw a two-way multiplexer using three-state logic

How might you risk creating a short circuit

If two devices share the same line on a bus at the same time, (sharing a 0 and a 1)

What logic can fix this?

3 state logic

What does off mean?

This means that the output is not connected to power