T-1
Dedicated telecommunications line providing 1.5 Mbps of bandwidth.
Consists of 24 individual channels 64 Kbps each, that can be configured for voice or data transmission.
T1 lines can be leased by businesses that required a dedicated Net connection of with higher reliability than a DSL and faster than an ISDN line but are still quite expensive.
At maximum theoretical capacity, a T-1 line could move a megabyte in less than 10 seconds.
That is still not fast enough for full-screen, full-motion video, for which you need at least 10,000,000 bits-per-second.
