Definition 5.8: device
A piece of equipment that is electronically connected to the memory so that data can be transferred between the memory and the device.
Definition 5.9: standard input
Definition 5.10: standard output
Definition 5.11: insertion
Aka writing or sending data to an output device.
Definition 5.12: extraction
Aka reading or getting data from an input device.
Definition 5.13: escape code
A code directing an output device to do something.