paper tape
2 definitions found
paper tape - WordNet (r) 2.1 (2005) :
paper tape
n 1: a long narrow strip of paper
paper tape - Free On-line Dictionary of Computing (26 May 2007) :
paper tape
<hardware, history> 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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