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"teletypewriter" - 2 õppematerjali

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120
doc

Lühendite seletus

Run Time Library RTM Release To Manufacturer + Response Time Monitor + Runtime Manager [Borland] RTMP Routing Table Maintenance Protocol RTN Reuters Transaction Network RTOS Real-Time Operating System RTP Rapid Transport Protocol + Real Time Protocol + Real-Time Transport Protocol RTS Remote Takeover System + Ready/Request To Send RTSP Real-Time Streaming Protocol RTTI Runtime Type Identification/Information RTTY Radio Teletypewriter (Communications) RTV Real Time Video RTX Run Time Extension RUN Rewind/Unload [IBM] RUP Rational Unified Process [IBM] RVA Relative Virtual Address RVI Reverse Interrupt R/W Read/Write RWIN Receive Window RWM Read-Write Memory RX Receiver RXD Receive Data S... | TOP | UP to R | DN to T | BOTTOM | SA Selective Availability SAA Systems Application Architecture [IBM] SAAS Software As A Service SABRE Semi-Automatic Business Research Environment

Informaatika → Informaatika
117 allalaadimist
TheCodeBreakers
946
pdf

TheCodeBreakers

radio station on Bainbridge Island near Seattle trembled to vibrations in the ether. A message was coming through on the Tokyo-Washington circuit. It was addressed to the Japanese embassy, and Bainbridge reached up and snared it as it flashed overhead. The message was short, and its radiotelegraph transmission took only nine minutes. Bainbridge had it all by 1:37. The station's personnel punched the intercepted message on a teletype tape, dialed a number on the teletypewriter exchange, and when the connection had been made, fed the tape into a mechanical transmitter that gobbled it up at 60 words per minute. The intercept reappeared on a page-printer in Room 1649 of the Navy Department building on Constitution Avenue in Washington, D.C. What went on in this room, tucked for security's sake at the end of the first deck's sixth wing, was one of the most closely guarded secrets of the American government. For it was in here—and in a similar War

Informaatika → krüptograafia
15 allalaadimist


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