When was high speed internet invented?

Developed in the 1950's for use by the telephone companies, the T1 line is the basic digital line service for business applications. It has a fixed 1.5 Mbps bandwidth in each direction. That bandwidth can be allocated to network data, converged VoIP and computer data, or segregated into 24 individual standard telephone channels. If you need more bandwidth, T1 lines can be bonded to create typically 2x to 9x the individual line capacity. Usually higher bandwidth needs that these are assigned to DS3 circuits at 45 Mbps for cost reasons. However, in remote locations where there is no installed DS3 service, it might be cheaper to install multiple bonded T1 lines to get the required bandwidth. T3 bandwidth provides data transfer speeds of 45 megabits per second (mbps) and contains 672 individual channels that are each equal to voice grade telephone lines, capable of transmitting online video shoots, real time video, and large databases over a busy network. T3 bandwidth is by and large, used in large universities and companies that have large number of users in the same network.