SET of Soviet Punch Cards (IBM 80-column) + Magnetic Tape (IBM 9 track format)

Description

SET of Soviet Punch Cards (IBM 80-column) + Magnetic Tape (IBM 9 track format)
Description
This lot included:
Vintage mainframe computer punch cards (IBM 80-column card format) - 10pcs
Vintage mainframe computer perforated punch cards (IBM 80-column card format) - 1pc
Vintage magnetic tape (IBM 9 track format) - 3.96 meters / 156 inches / 13 feet
Many years ago these punch cards and magnetic tape were used how information carriers instead of diskette, CD/DVD and Flash drives in Soviet mainframes (series: BESM, MIR, Ural, Kiev, Dnieper, Minsk-32, ES-1030/1035/1040/1050/1036/1045/1046/1055/1060/1061/1065/1068/… and others series ES-10XX). These punch cards and magnetic tape were created in period 1970's-1980's in USSR.
Punch cards
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.
Magnetic tape
Vintage magnetic tape reel 9-track (IBM 9 track format) ORWO GDR, width ½ inch has 9 tracks and allowe to write exactly one byte in each position of the tape (8 information bits plus 1 control), and the 9-track tape was invented and started its work together with IBM System/360. In the USSR, magnetic tapes were used with recording densities of 32, 63, and 243 bits/mm (800, 1600, and 6250 bits/inch). The tape was wound on a plastic spool (bobbin). Bobbins were made in two formats: standard coils with a diameter of 267 mm (10.5 inches) containing 730 meters of tape, reduced coils with a diameter of 178 mm (7 inches) containing 183 meters of tape.
Similar goods for purchase
You can purchase punch cards separately, please click
buy punch cards
You can purchase perforated punch cards
separately, please click
buy perforated punch cards
You can purchase magnetic tape reel, please click
buy magnetic tape
100% Genuine Soviet items
30 days returned accepted
Fast handling
Safe and careful packaging
Combined shipping
100% Genuine Soviet items
30 days returned accepted
Fast handling
Safe and careful packaging
Combined shipping
100% Genuine Soviet items
30 days returned accepted
Fast handling
Safe and careful packaging
Combined shipping
Photos
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)_1
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)_2
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)_3
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)_4
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 Track Format)_5
Gift Set Soviet Punch Cards (Ibm 80-Column), Magnetic Tape (Ibm 9 T...
Gift Set Soviet Punch Cards (I...
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Shipping
We ship 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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