A Little Vintage Computer Monitor History
Until the early 1980's most monitors were terminals. They were boxy video
display terminals (VDT's) combined with an attached keyboard. A terminal could
be configured to work with just about any computer on the market. (Not that
there was a wide selection of personal computers for you to choose from.)
Terminals were attached to computers by a serial interface. In those days,
the VDT was commonly referred to as a CRT (Cathode Ray Tube).
Before DOS, the dominant operating system (OS) for 8 bit computers was CP/M
(Control Program for Microprocessors). Early CP/M machines were originally
designed to use separate memory-mapped video display devices and discrete
keyboards that plugged into the machines - not unlike video display cards used
later. The most well known was the VDM-1. Terminal manufacturers recognized this
"lost market "and began to market mainframe and mini-style terminals to the CP/M
community. The sales pitch of "just like a real (mainframe at the time)
computer" paid off. CP/M computers soon used terminals almost exclusively.
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
with a keyboard as part of the system. All that was missing was a monitor once
the Apple II was plugged in).
These monitors - unlike terminals - looked like television sets without the
tuner. In some cases they actually were television sets. (Many early computers -
such as the Commodores Vic 20, 64 and 128, could be used with any television set
with a special RF adapter that hooked to the antenna of the TV).
Then IBM came out with PC-DOS computers, which were dubbed "three-piece
computers.' One explanation according to a prominent used car dealer Moonie
Bronstein was that many of the early marketers / hucksters advising the techies
of the early computer era ,had their start in the competitive world of auto
sales where such terms as " 3 piecers " and " 4 piecers" were popular marketing
and sales terms. Other explanations for this marketing term was because the
computers included three main components i.e. - the monitor, the keyboard and
the CPU "box".
Ironically, when the IBM PC-DOS computers arrived on the scene with separate
monitor and keyboard - the monitor connected directly to the computer. Just like
the earliest personal computers) through a display device connection. These new
monitors used video cards that were either IBM monochrome (MDA), IBM color
graphics cards9 CGA), or Hercules (the first third party ad on cards).
About the author: Arthur Felon Vintage Computer Manuals. Interest in vintage computers