A discrete bundle of data sent over a network. Also one full screen image, stored in memory. Expanded memory switches pages of memory 64K at a time into locations below the DOS 640K limit as a way for DOS to have acces to more than 640K of memory. Any printer that prints a page at a time.
Page printers store an entire page in their memory before printing it.
Also the choice of colors available on the screen. Too small for serious typing. Same as hand-held computer. In 8-bit parallel, all the bits in a byte arrive simultaneously. Compare serial .