ECEN 1200, Telecommunications 1 - Terms and Acronyms

ECEN 1200 - Telecommunications 1

Peter Mathys, Fall 2006

Terms and Acronyms Used in Telecommunications

ADSL: Asymmetric Digital Subscriber Line.
AES: Advanced Encryption Standard.
ALU: Arithmetic Logic Unit.
AM: Amplitude Modulation
ANSI: American National Standards Institute.
ARP: Address Resolution Protocol.
ASCII: American Standard Code for Information Interchange.
ASP: Active Server Pages.
ATM: Asynchronous Transfer Mode.
BPF: BandPass Filter.
ccTLD: Country Code Top Level Domain (e.g., it, jp, us).
CD: Compact Disc
CISC: Complex Instruction Set Computer.
CMY: Cyan, Magenta, Yellow. The primary colors of the subtractive color system.
CMYK: Cyan, Magenta, Yellow, blacK. Subtractive color system plus black. Widely used in the printing industry.
cpi: Characters per inch.
CPU: Central Processing Unit.
CRC: Cyclic Redundancy Check.
CSS: Cascading Style Sheet.
CT: Continuous Time.
dB: deciBel. Measure of ratio between two quantities, e.g., signal power and noise power.
DBMS: Data Base Management System.
DEC: Digital Equipment Corporation.
DES: Data Encryption Standard.
DNS: Domain Name System.
DOS: Disk Operating System.
dpi: Dots per inch
DSL: Digital Subscriber Line.
DT: Discrete Time.
DTMF: Dual-Tone Multi-Frequency. Dual-tone signals that are used for telephone dialing and data entry.
DV: Digital Video.
DVD: Digital Versatile (or Video) Disc.
EAN: European Article Number.
EIA: Electronic Industries Alliance.
ENIAC: Electronic Numerical Integrator and Computer. First truly electronic computer, 1946-1955.
EO: End Office. Used in telephony, synonymous with local exchange office.
FDDI: Fiber Distributed Data Interface.
FDM: Frequency Division Multiplexing.
FM: Frequency Modulation.
fps: Frames per second.
FTP: File Transfer Protocol.
GB: Giga Bytes.
Gb: Giga bits.
GIF: Graphics Interchange Format. Standard for storing graphic images in compressed form (lossless).
gTLD: Generic Top Level Domain (e.g., com, edu, org).
GUI: Graphical User Interface.
HDTV: High Definition Television.
HPF: High Pass Filter.
HSV: Hue, Saturation, Value. A color model in which color itself (hue) is placed on a circle (red is 0 degrees, green is 120 degrees, blue is -120 degrees) whose radius is proportional to the saturation (purity) of the color. Value is a measure for the brightness of the color.
HTML: Hypertext Markup Language.
HTTP: Hypertext Transfer Protocol.
Hz: Hertz.
IAB: Internet Architecture Board.
IANA: Internet Assigned Numbers Authority.
IBM: International Business Machines.
IE: Internet Explorer.
IEEE: Institute of Electrical and Electronics Engineers.
IESG: Internet Engineering Steering Group.
IETF: Internet Engineering Task Force.
IP: Internet Protocol.
IR: Infra-Red.
ISBN: International Standard Book Number.
ISDN: Integrated Services Digital Network.
ISO: International Organization for Standardization. Note that ISO is not an acronym. It comes from Greek "isos" meaning equal.
ISOC: Internet Society.
ITU: International Telecommunication Union (formerly CCITT).
JPEG: Joint Photographic Experts Group. Standard for storing photographic images in compressed form (lossy).
kB: Kilo Bytes.
kb: Kilo bits.
LAN: Local Area Network.
LATA: Local Access and Transport Area.
LDN: Long Distance Network.
LPF: Low Pass Filter.
lpi: Lines per inch.
LSB: Least Significant Bit.
LSD: Least Significant Digit.
MAN: Metropolitan Area Network.
MB: Mega Bytes.
Mb: Mega bits.
MIME: Multipurpose Internet Mail Extensions.
MP3: MPEG-1/2 Audio Layer 3. Audio compression algorithm, originally developed for use in conjunction with film and video.
MPEG: Moving Pictures Experts Group. Set of standards for audio and video compression.
MSB: Most Significant Bit.
MSD: Most Significant Digit.
NTSC: National Television System Committee.
OC: Optical Carrier.
OS: Operating System.
OSI: Open Systems Interconnect. Used in connection with OSI 7 layer model for computer networking.
PAN: Personal Area Network.
PC: Personal Computer.
pdf: Portable Document Format (developed by Adobe Systems).
PM: Phase Modulation.
PPP: Point-to-Point Protocol.
PSD: Power Spectral Density.
PSTN: Public Switched Telephone Network.
RAM: Random Access Memory.
RFC: Request for Comment.
RGB: Red, Green, Blue. The primary colors of the additive color system.
RISC: Reduced Instruction Set Computer.
ROM: Read-Only Memory.
rpm: Revolutions per Minute.
SDM: Space-Division Multiplexing.
SDTV: Standard Definition Television.
SGML: Standard Graphics Markup Language.
SHTML: Server-parsed HTML.
SMTP: Simple Mail Transfer Protocol.
SNMP: Simple Network Management Protocol.
SNTP: Simple Network Time Protocol.
SQNR: Signal to Quantization Noise Ratio.
SVCD: Super Video CD.
TCP: Transport Control Protocol.
TDM: Time-Division Multiplexing.
TLD: Top Level Domain.
UDP: User Datagram Protocol.
UPC: Universal Product Code.
URI: Universal Resource Identifier.
URL: Universal Resource Locator.
URN: Universal Resource Name.
VCD: Video CD.
W3C: World-Wide Web Consortium.
WAN: Wide Area Network.
WWW: World-Wide Web.
XHTML: eXtensible HTML.
XML: eXtensible Markup Language.
YUV: YUV model definition in terms of luminance (Y) and two chrominance (UV) components.