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Digital television (DTV) is the transmission of television signals
using digital rather than conventional analog methods.
Conventional standards - NTSC, PAL, and SECAM - specify
analog transmission. However, both the audio and video
components of a television signal can be transmitted in digital
form. Many engineers believe that DTV will become the industry
standard within a few years.
(from www.whatis.com)
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PDA (personal digital assistant) is a term for any small mobile
hand-held device that provides computing and information
storage and retrieval capabilities for personal or business use,
often for keeping schedule calendars and address book
information handy. The term handheld computer is a synonym.
Many people use the name of one of the popular PDA products
as a generic term. These include Hewlett-Packard's Palmtop and
3Com's PalmPilot. |
