History of Computer Monitors

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<ul><li><p>8/2/2019 History of Computer Monitors</p><p> 1/2</p><p>HISTORY OF COMPUTER MONITORS</p><p>Until the early 1980's most monitors were terminals. They were boxy video displayterminals (VDT's) combined with an attached keyboard. A terminal could beconfigured to work with just about any computer on the market. (Not that there was awide selection of personal computers for you to choose from.)</p><p>Terminals were attached to computers by a serial interface. In those days, the VDTwas commonly referred to as a CRT (Cathode Ray Tube).</p><p>Before DOS, the dominant operating system (OS) for 8 bit computers was CP/M(Control Program for Microprocessors). Early CP/M machines were originallydesigned to use separate memory-mapped video display devices and discretekeyboards that plugged into the machines - not unlike video display cards used later.The most well known was the VDM-1. Terminal manufacturers recognized this "lostmarket "and began to market mainframe and mini-style terminals to the CP/Mcommunity. The sales pitch of "just like a real (mainframe at the time) computer" paidoff. CP/M computers soon used terminals almost exclusively.</p><p>Apple II computers and the early game machines (such as those made by Atari,Coleco or Nintendo) hooked to a monitor not a terminal. (The Apple II was built witha keyboard as part of the system. All that was missing was a monitor once the AppleII was plugged in).</p><p>These monitors - unlike terminals - looked like television sets without the tuner. Insome cases they actually were television sets. (Many early computers - such as theCommodores Vic 20, 64 and 128, could be used with any television set with a specialRF adapter that hooked to the antenna of the TV).</p><p>Then IBM came out with PC-DOS computers, which were dubbed "three-piececomputers.' One explanation according to a prominent used car dealer MoonieBronstein was that many of the early marketers / hucksters advising the techies of theearly computer era ,had their start in the competitive world of auto sales where suchterms as " 3 piecers " and " 4 piecers" were popular marketing and sales terms. Otherexplanations for this marketing term was because the computers included three maincomponents i.e. - the monitor, the keyboard and the CPU "box".</p></li><li><p>8/2/2019 History of Computer Monitors</p><p> 2/2</p><p>Ironically, when the IBM PC-DOS computers arrived on the scene with separatemonitor and keyboard - the monitor connected directly to the computer. Just like theearliest personal computers) through a display device connection. These new monitorsused video cards that were either IBM monochrome (MDA), IBM color graphicscards9 CGA), or Hercules (the first third party ad on cards).</p></li></ul>

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