Learning outcomes

simplex

data can only move in 1 direction

half-duplex

data can move in both directions but
only one at a time

full duplex

data can freely move in both directions

serial

data sent bit by bit

parallel

data sent multiple bits at a time

MAC address

unique number which is used to identify the device

IP adress

used to identify location of a device on a network

echo

message given back
confirming data was sent
correctly/wrong

parity

large table full of bits and bytes
(along with the parity ones)
check is conducted and error can be detected.