PA / noun C [23] abbreviation for picoamp. A unit of current equal to a millionth of a millionth of an amp
(software) package / noun C [6,12,16,22] an application program or collection of programs that can be used in different ways
Pager / noun C [16,20] a small radio receiver which beeps to alert the wearer of messages or telephone calls. It displays the telephone number of the caller so the wearer can call back. Some pagers can display very short messages.
Palm Pilot /noun U [11] a poputar handheld personal organizer producer by 3Com
Palm-size PC / noun C [7] another name for a handheld IBM compatible computer
Parity data / noun U [17] extra data bits added to the end of units of data before transmission and then checked and added alter transmission to see it the data has arrived accurately