# Glossary

## A

ASCII
  American Standard Code for Information Interchange

## C

C
  A computer language
Character Set
  The association of numbers with specific printed or displayed characters or symbols

## E

ESC/P
  EPSON Standard Code for Printers

## F

FTP
  File Transfer Protocol

## G

GIF
  Graphics Interchange Format

## H

HP-PCL
  Hewlett-Packard Page Control Language
HP-PJL
  Hewlett-Packard Printer Job Language

## I

IETF
  Internet Engineering Task Force
IP
  Internet Protocol
IPv4
  Internet Protocol, version 4; IPv4 addresses are 32-bits in length and often look like "nnn.nnn.nnn.nnn" and "127.0.0.1"
IPv6
  Internet Protocol, version 6: IPv6 addresses are 128-bits in length and look like "xxxx::xxxx:xxxx:xxxx:xxxx" and "::1"
IPP
  Internet Printing Protocol
ISO
  International Standards Organization

## J

JFIF
  JPEG File Interchange Format
JPEG
  Joint Photographic Experts Group

## L

LPD
  Line Printer Daemon

## M

MIME
  Multimedia Internet Mail Exchange

## P

parallel
  Sending or receiving data more than 1 bit at a time
PDF
  Portable Document Format
pipe
  A one-way communications channel between two programs
PNG
  Portable Network Graphics
PostScript
  A page description language that is most often used for printing
PPD
  PostScript Printer Description
PWG
  Printer Working Group

## S

serial
  Sending or receiving data 1 bit at a time
SMB
  Server Message Block
socket
  A two-way network communications channel

## T

TCP
  Transmission Control Protocol
TFTP
  Trivial File Transfer Protocol
TIFF
  Tagged Image File Format

## U

UDP
  Unicast Datagram Protocol
Unicode
  A universal character set for all languages of the world
UTF-8
  Unicode Transfer Format 8-Bit