DEVICE FOR READING AND PRINTING ALPHABET DIGITAL INFORMATION FROM PERFORATION CARDS(USP-1),

The USP-1 machine for reading alphanumeric information from punched cards and printing decoded information on printer rolls is described. Code forms, compatible with those used for the Ural-4 computer are shown in a table. About 200 standard ferrite-diode modules are used in the reader-printer control system construction. The following functions are performed by the device 1 automatic feeding and relay of punched cards, 2 printing of alphanumeric text, 3 resetting of information registers and typewriter carriage return, as designated by the proper control codes on punched cards. Otherwise, carriage return is caused by printing in the right-most field of the typewriter paper roll. Reliability controls are installed to stop printing and reading in case of certain malfunctions. The device is capable of handling both Russian and Latin text characters, plus selected Greek letters, Arabic and Roman numerals, punctuation marks, arithmetic and other symbols, for a total of 86 characters in all. The same character dictionary is used in both input and output modes. Printer speed is 10 characters per second. The typewriter paper roll is 170 characters wide, and the total length of the roll is 50 meters. A block diagram of the functional units of the device is given. Author