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A 1944 electro-mechanical programmable calculating machine, the Automatic Sequence Controlled Calculator or Harvard Mark I, used paper tape with 24 rows, [4] The IBM Selective Sequence Electronic Calculator (SSEC) used paper tape with 74 rows. [5] Australia's 1951 electronic computer, CSIRAC, used 3-inch (76 mm) wide paper tape with twelve rows ...
Thermal paper (often supplied in roll form, and sometimes referred to as an audit roll) is a special fine paper that is coated with a material formulated to change color locally when exposed to heat. It is used in thermal printers , particularly in inexpensive devices such as adding machines , cash registers , and credit card terminals and ...
Now the user pressed the multiplication 1 key. The machine cycled once. To see the total the user was required to press a Total key and the machine would print the result on a paper tape, release the locked down keys, reset the adding mechanism to zero and tabulate it back to its home position. Modern adding machines are like simple calculators.
Till rolls are paper rolls for use in cash registers and Electronic Point of Sale printers. There are a number of different types available, including: Thermal: One side of the paper has a special coating that is heat sensitive. 2 & 3 ply: These rolls require an impact printer and produce multiple copies
There was a holder for a large roll of paper tape on the back of the unit, with tape feeding around to a punch on the left side, toward the rear. The tape reader was on the same side, toward the front, and was essentially identical to the reader shown on the front of the square housing in the photo of the auxiliary reader.
The IBM card readers 3504, 3505 and the multifunction unit 3525 used a different encoding scheme for column binary data, also known as card image, where each column, split into two rows of 6 (12–3 and 4–9) was encoded into two 8-bit bytes, holes in each group represented by bits 2 to 7 (MSb numbering, bit 0 and 1 unused ) in successive ...
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