| slovo | definícia |
paper tape
(encz) | paper tape, n: |
paper tape
(wn) | paper tape
n 1: a long narrow strip of paper |
paper tape
(foldoc) | paper tape
Punched paper tape. An early
input/output and storage medium borrowed from telegraph
and teletype systems.
Data entered at the keyboard of the teletype could be directed
to a perforator or punch which punched a pattern of holes
across the width of a paper tape to represent the characters
typed. The paper tape could be read by a tape reader feeding
the computer. Computer output could be similarly punched onto
tape and printed off-line.
As well as storage of the program and data, use of paper tape
enabled batch processing.
The first units had five data hole positions plus a sprocket hole
(for the driving wheel) across the width of the tape. These used
commercial telegraph code (ITA2 also known as Murray), {Baudot
code} or proprietary codes such as Elliott which were more
programmer-friendly. Later systems had eight data holes and used
ASCII coding.
(2003-12-02)
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