What Can Gigabit Networks Learn From The Past?
A. E. Joel · LEOS 1993 Summer Topical Meeting Digest on Optical Microwave Interactions/Visible Semiconductor Lasers/Impact of Fiber Nonlinearities on Lightwave Systems/Hybrid Optoelectronic Integration and Packagi · 1993
Electrical telecommunications commenced with telegraphy. In time improvements brought repeaters to cover longer distances. Higher-speed operation increased capacity but human signal reading capability could no longer be relied upon. Automatic recorders were developed to overcome this deficiency and to improve service generally. Manual Switching was added to permit messages to be directed according to addresses.