Peripheral Products


Storage - Paper Tape/Card Selection:

1) 2753A Tape Punch (1966)
2) 2737A Paper Tape Reader (1966)
3) 2760A Optical Mark Reader (1967)
4) 2748 Paper Tape Reader (1969)
5) 9860A Card Reader (1971)
6) 9863A Paper Tape Reader (1972)
7) 2892A Card Reader (1972)
8) 2895 Tape Punch (1972)
9) 2950A Card Reader (1972)
10) 7260A Card Reader (1973)
11) 9870A Card Reader (1974)
12) 2894A Card Reader/Punch (1974)

 

In the 1960s, the primary means of mass storage in the computer industry was paper, either punched tape or punched cards. The media (paper) and the hardware (readers and punchers) for this technology were relatively inexpensive. Paper tapes and cards were also reliable.

However, paper had many drawbacks. It was very slow; loading programs from punched tape or cards took a long time. Compared to subsequent magnetic media, paper was not a dense storage medium. Many cards, or many meters of paper tape were required to hold even basic programs or data files. Technically, paper was also a WORM technology (Write Once, Read Many), a term that came into being in the 1980s, during the early days of magneto-optical technology. So, if a programmer needed to change a single line on a program, he/she had to load the program in the usual slow manner, input changes to the program, then punch out the entire program again onto new tape or onto a new set of cards. Punched cards had the added disadvantage of needing to be kept in the exact correct order at all times. If one card (in say a 100-card program) was input in the wrong order, the program would not be correctly read by the computer.

Although magnetic discs and tapes became available by 1970, paper storage technology was still used throughout the 1970s.

Be sure to visit our Supplies and Consumables Catalogs for part numbers and information on all the media and accessories available for these products.


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