Glossary
3G—Third generation mobile communications technology. Technology promises increased bandwidth, up to 128 Kbps in a moving automobile, up to 384 Kbps when a device is moving at less than walking speed, and up 2 Mbps in stationary locations. Subject of a multi-billion dollar radio spectrum auction at the dawn of the 21st century.
AAC (Advance Audio Coding)—Audio coding system for MPEG–2 and MPEG–4 signals that provides up to 48 channels of audio. Frequently used at 192 kbps for 5.1 surround sound.
ADSL (Asymmetric Digital Subscriber Line)—Technology that enables a standard telephone line to carry high-speed data in addition to normal voice telephony. Operates by using very high frequencies to carry data; requires DSL modem devices to ...
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