Computer Monitors

The History of The Monitor

The begining of the computer monitor

The video display terminal, or VDT, marked the early days of computer monitors. These VDTs included a screen and attached keyboard linked to a larger computer by a serial connection. Because VDTs required a connection to a larger computer, they were often referred to as "dumb terminals." Dumb terminals displayed text only in two colours, usually black and green. The Apple II and first game machines began using a television CR

Then came the IBM'S CRT

In 1981, IBM introduced the first PC, also known as a "three-piece computer" because the monitor, keyboard and cpu were separate, rather than earlier computer terminals, which combined the monitor and keyboard. With the PC's introduction came the Colour Graphics Adapter (CGA) from IBM, allowing for four colours. The CGA allowed 320 x 200 resolution. By 1984, IBM introduced the Enhanced Graphics Adapter permitting 16 colours and a 640 x 350-pixel display.