2x VINTAGE MAINFRAME COMPUTER Perforated PUNCH CARDS. IBM 80-column card formatDescription
- Color: cream
- Manufacturer: Soyuzschettehnika
- Material: paper
- Application: old USSR mainframes: BESM, MIR, Minsk-32, ES-10XX and others
- Condition: used, good apperance
We sell set of 2 pcs cream colored perforated punch cards for vintage USSR Soviet Mainframes in perfect condition. Many years ago these punch cards were used how information carriers instead of diskette, CD/DVD and Flash drives in Soviet mainframes (series: BESM, MIR, Ural, Kiev, Minsk-32, ES-1060 and others series ES-10XX).Thesepunch cards were createdin period 1970's-1980's in USSR. Speed of the Soviet punch cards reading depended on the specific implementation of the reader and ranged from 20-50 punch cards/min in the first computers and up to 2000 in newer machines such as the ES-series computers (late 70s). This performance was achieved by using several readers (readers) punch cards in parallel. Information recording ("hole punching") was performed at the rate of 10-250 punch cards per minute.
Soviet punch cards made similar as IBM format and have 80 characters as standard. According to the IBM standard, each card must have size 7⅜ × 3¾ inches (187.325 × 82.55 mm), card thickness 0.007 inches (0.178 mm). Total one punch card can save only 24 machine word. One machine word had a size of 36 bits (in period time when were used the punch cards). Similar punch cards were used for first mainframes in USA (IBM series: 704/709/711/709/7094, American machines UNIVAC) and also for others computing systems. With help these punch cards first programmers wrote first programs using programming languages: Cobol, Algol, Fortran, Assembler and others. We even saw the first games for mainframe developed with help Fortran and similar punch cards about 20 years ago.
Interesting facts: According to approximate calculations, a Gigabyte of information presented in the form of punch cards would weigh about 22 tons or if you add all the punch cards to one another, this stack would be about 2 km tall. Surprisingly, punch cards are still used on old computers in Russia, Ukraine and some other republics of the former USSR at the old factories!
This is the last memories of the past era of vintage Computing Technologies and Computing Machinery! This can be very good souvenir and surprise for fans of computer technology. Very good use of these cards for notes and bookmarks -)).
See also additional photos where you can see applying these punch cards in the Soviet industry and in the world. In these photos you can see equipment for work with these punch cards in period 1970-1980s. We have a small amount of punch cards. With each new sale amount of punch cards decreases and the price can rise.
100% Genuine Soviet items30 days returned acceptedFast handlingSafe and careful packagingCombined shipping100% Genuine Soviet items30 days returned acceptedFast handlingSafe and careful packagingCombined shipping100% Genuine Soviet items30 days returned acceptedFast handlingSafe and careful packagingCombined shippingPhotos
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- Vintage Mainframe Computer Perforated Punch Cards. Ibm 80-Column Card Format_4Vintage Mainframe Computer Perforated Punch Cards. Ibm 80-Column Ca...Vintage Mainframe Computer class="col-font-size"> Weaccept payments through PayPal (Mastercard, Eurocard, Visa, Maestro, American Express, Discover, Bank, etc. via PayPal). We are passionately wishing to deliver the goods to you as fast as possible and will always send them in no time after the transaction and being notified by PayPal. Shipping
Weship Worldwide via International Registered Air Mail with tracking number. We pack all our items carefully and securely. Shipping usually takes about 10-14 days for a package to arrive to Europe, 15-30 days to USA, Canada, Asia, Africa, Australia and Japan. We are glad to do combined shipping, please contact us.
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