Short for personal communications service, the U.S. Federal Communications Commission (FCC) term used to describe a set of digital cellular technologies being deployed in the U.S. Also referred to as digital cellular, PCS works over CDMA (also called IS-95), GSM, and North American TDMA (also called IS-136) air interfaces. Three of the most important distinguishing features of PCS systems are:
They are completely digital
They operate at the 1900MHz frequency range (unlike other cellular systems that operate in the 800MHz frequency range)
They can be used internationally
PCS is a second-generation mobile communications technology.
Originally developed by ZSOFT for its PC Paintbrush program, PCX is a graphics file format for graphics programs running on PCs. It is supported by most optical scanners, fax programs, and desktop publishing systems. Files in the PCX format end with a “.pcx” ( pronounced dot -p-c-x) extension. Two other common bit map formats are […]
The name IBM uses to market its version of the DOS operating system.
- PC card
A computer device packaged in a small card about the size of a credit card and conforming to the PCMCIA standard.
A combination of a personal computer and television. PC/TVs are computers with built-in television boards.
- Personal Digital Assistant (PDA)
Short for personal digital assistant, a handheld device that combines computing, telephone/fax, Internet and networking features. A typical PDA can function as a cellular phone, fax sender, Web browser and personal organizer. PDAs may also be referred to as a palmtop, hand-held computer or pocket computer. Not a Portable Computer Unlike portable computers, most PDAs […]