Glossary
Decimal is base 10 and uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. (This is the most familiar system.)
Hexadecimal (hex) is base 16 and uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. This is frequently used by programmers. Any decimal number between 0 and 255 can be expressed by a
Binary is base 2 and uses only the digits 0 and 1. All information in computer systems is handled in binary form representing electrical signals that are on or off. A binary digit is often called a bit: any decimal number between 0 and 255 can be expressed by an
Paper bail
The part of the printer that holds the paper against the platen.
A small switch behind the platen that sends a signal when it is not in contact with paper.
Paper tension unit
The part of the printer that fits on top of the platen to assure proper
Parallel interface
An interface is the connection between the computer and the printer. There are two types: a parallel interface transmits data one character or code at a time, and a serial interface transmits data one bit at a time.
Parity
Parity is a method for a computer and printer to check the reliability of data transmission.
Pitch
Indicates the number of characters per inch (cpi) For example, 10 pitch printing is 10 cpi.
Platen
The black roller that provides a backing for the printing.