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TELCOMP
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<h2 id="commands">Commands</h2> <p>A TELCOMP program was made up of numbered lines, each line referred to as a Step. Steps were grouped into Parts. Each line contained one instruction. </p> DEMAND Read input from the teletype DO PART Execute all of the steps in a numbered part and then return DO STEP Execute a single line and return DONE Stop execution of current part and return to caller IF Condition, suffixed to any instruction FOR Loop, suffixed to any instruction PLOT Type output to the teletype in the form of a graph PRINT Print output to the teletype READ Read input from the paper tape reader SEND Send output to the paper tape punch SET Assign a variable to the value of an expression STOP Stop execution completely TO PART Go to a specified part TO STEP Go to a specified line TYPE Emulate teletype input while in stored operation mode (like the <a href="/facts/Expect/wqGrbJNH">TCL/TK Expect</a> functionality) ; Comment, suffixed to any line FORM A specification for formatted output (not really a command) <h2 id="sample-program">Sample Program</h2> 1.04 TYPE #,"ENTER ONE OF THE FOLLOWING:-";MENU 1.05 TYPE FORM X FOR X=1:1:4 FOR END=10^15 1.06 READ GRNO IN FORM 15 1.065 DONE IF GRNO=END 1.07 TO STEP 1.06 IF GRNO>4 1.08 TO PART GRNO+1 2.01 DO PART 50 2.02 READ N,K 2.03 DO PART 51 2.04 TO PART 15 .. 15.01 LINE FOR X=1:1:3 15.02 TYPE MINPL,MAXPL IN FORM 17 15.03 TYPE FORM 17 15.04 DO PART GRNO+15 FOR X=MNPL:STPL:MXPL 16.01 Y=(X^N)+K 16.02 Y1[X]=(((Y-MNPL)/(MXPL-MNPL))*2)-1 .. FORM 15 ITEM NUMBER? ##### FORM 17 MINIMUM ##### MAXIMUM ###### <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"A Culture of Innovation Insider Accounts of Computing and Life at BBN - A Sixty Year Report 18 October 1948 to 1 July 2010" (PDF). Waterside Publishing. 2011. ISBN 978-0-9789737-0-4. Retrieved 2024-02-10. <a href="978-0-9789737-0-4" target="_blank">978-0-9789737-0-4</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Leo Beranek Oral History". Institute of Electrical and Electronics Engineers (IEEE). Archived from the original on 2004-08-05. Retrieved 2004-09-16. <a href="https://web.archive.org/web/20040805232902/http://www.ieee.org/organizations/history_center/oral_histories/transcripts/beranek.html" target="_blank">https://web.archive.org/web/20040805232902/http://www.ieee.org/organizations/history_center/oral_histories/transcripts/beranek.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> </ol>