Compaq and Texas Instruments have announced that TI’s programmable digital signal processor (DSP)-based asymmetric digital subscriber line (ADSL) modem chipsets will power Compaq’s line of Presario Internet PCs.
The new TI ADSL-enabled PCs will allow Compaq’s customers to access the latest broadband services such as e-commerce, telecommuting, interactive gaming and video and audio streaming at speeds up to 100 times faster than today’s V.90, or 56K analog modems.
Bellcore originally envisioned ADSL for Video on Demand (VOD) applications where downstream speeds of 1.5 Mbps would suffice for MPEG movies. Since then, the market for VOD has vanished due to lack of demand. Today, ADSL has found new life with Internet access.
The inherent asymmetry of an ADSL system makes it well suited for Web browsing applications, where the downstream content information is likely to require greater bandwidth than the upstream requests. The upstream and downstream rates have improved to 640 Kbps upstream and approximately 6 Mbps downstream (depending on loop length and loop conditions).