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2. IBM 602 - Wikipedia

   en.wikipedia.org/wiki/IBM_602

   The IBM 602 Calculating Punch, introduced in 1946, was an electromechanical calculator capable of addition, subtraction, multiplication, and division. The 602 was IBM's first machine that did division. (The IBM 601, introduced in 1931, only multiplied.) Like other IBM calculators, it was programmed using a control panel.

3. Time clock - Wikipedia

   en.wikipedia.org/wiki/Time_clock

   In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card, into a slot on the time clock. When the time card hit a contact at the rear of the slot, the machine would print day and time information (a timestamp) on the card. One or more time cards could serve as a timesheet or

4. IBM 402 - Wikipedia

   en.wikipedia.org/wiki/IBM_402

   The 402 could read punched cards at a speed of 80 to 150 cards per minute, depending on process options, while printing data at a speed of up to 100 lines per minute. The built-in line printer used 43 alpha-numerical type bars (left-side) and 45 numerical type bars (right-side, shorter bars) to print a total of 88 positions across a line of a report.

5. Computer programming in the punched card era - Wikipedia

   en.wikipedia.org/wiki/Computer_programming_in...

   A single program deck, with individual subroutines marked. The markings show the effects of editing, as cards are replaced or reordered. Many early programming languages, including FORTRAN, COBOL and the various IBM assembler languages, used only the first 72 columns of a card – a tradition that traces back to the IBM 711 card reader used on the IBM 704/709/7090/7094 series (especially the ...

6. Category:Date-computing templates - Wikipedia

   en.wikipedia.org/wiki/Category:Date-computing...

   Various utility templates can be used to compute dates and time values. This category will only list the basic date-computing templates with a general purpose and that do not depend specifically on local Wikipedia project conventions. Their design must remain clean but computationally correct for a wide range of possible values, and not ...

7. IBM 604 - Wikipedia

   en.wikipedia.org/wiki/IBM_604

   It could read a punched card from a deck, do some calculations based on the wiring of its plugboard, and punch results onto the same card. A separate IBM 521 Card Read/Punch processed the cards and had its own plugboard which selected the columns to be read and those to be punched. [6] The 604 and a modified version, the 605, were used as ...