smart terminal ==>
intelligent terminal
<hardware> (or "smart terminal", "programmable terminal") A terminal that
often contains not only a keyboard and screen, but also comes with a disk drive
and printer, so it can perform limited processing tasks when not communicating
directly with the central computer. Some can be programmed by the user to
perform many basic tasks, including both arithmetic and logic operations. In
some cases, when the user enters data, the data will be checked for errors and
some type of report will be produced. In addition, the valid data that is
entered may be stored on the disk, it will be transmitted over communication
lines to the central computer.
An intelligent terminal may have enough computing capability to draw graphics or
to offload some kind of front-end processing from the computer it talks to.
The development of workstations and personal computers has made this term and
the product it describes semi-obsolescent, but one may still hear variants of
the phrase "act like a smart terminal" used to describe the behaviour of
workstations or PCs with respect to programs that execute almost entirely out of
a remote server's storage, using said devices as displays.
The term once meant any terminal with an addressable cursor; the opposite of a
glass tty. Today, a terminal with merely an addressable cursor, but with none of
the more-powerful features mentioned above, is called a dumb terminal.
There is a classic quote from Rob Pike (inventor of the blit terminal): "A smart
terminal is not a smart*ass* terminal, but rather a terminal you can educate".
This illustrates a common design problem: The attempt to make peripherals (or
anything else) intelligent sometimes results in finicky, rigid "special
features" that become just so much dead weight if you try to use the device in
any way the designer didn't anticipate. Flexibility and programmability, on the
other hand, are *really* smart.
Compare hook.
(1995-04-14)
Nearby terms:
Intelligent Input/Output « Intelligent I/O «
intelligent key « intelligent terminal »
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