About: TELCOMP

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TELCOMP was a programming language developed at Bolt, Beranek and Newman (BBN) in about 1964 and in use until at least 1974. BBN offered TELCOMP as a paid service, with first revenue in October 1965. The service was sold to On-Line Systems, Inc. (OLS) in 1972. In the United Kingdom, TELCOMP was offered by Time Sharing, Ltd, a partnership between BBN and an entrepreneur named Richard Evans. In 1996, Leo Beranek said "We even developed a programming language called TELCOMP that to this day, some say was better than the programming language that the industry adopted, namely BASIC."

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  • TELCOMP was a programming language developed at Bolt, Beranek and Newman (BBN) in about 1964 and in use until at least 1974. BBN offered TELCOMP as a paid service, with first revenue in October 1965. The service was sold to On-Line Systems, Inc. (OLS) in 1972. In the United Kingdom, TELCOMP was offered by Time Sharing, Ltd, a partnership between BBN and an entrepreneur named Richard Evans. It was an interactive, conversational language based on JOSS, developed by BBN after Cliff Shaw from RAND visited the labs in 1964 as part of the NIH survey. It was first implemented on the PDP-1 and was used to provide a commercial time sharing service by BBN in the Boston area and later by Time Sharing Ltd. in the United Kingdom. In 1996, Leo Beranek said "We even developed a programming language called TELCOMP that to this day, some say was better than the programming language that the industry adopted, namely BASIC." There were at least three versions: TELCOMP I, TELCOMP II, and TELCOMP III. TELCOMP I was implemented on the PDP-1, TELCOMP II on the PDP-7 and TELCOMP III on the PDP-10, running on DEC's TOPS-10 operating system or on BBN's own TENEX operating system. TELCOMP programs were normally input via a paper tape reader on a Teletype Model 33, which would be connected to a PDP via a modem and acoustic telephone line. Data could be read from the paper tape reader or from the Teletype keyboard. Output was either printed to the Teletype or sent to the paper tape punch. Early versions had no facility for on-line storage of programs or data. During data input using a Teletype, the user would type a response to a printed prompt. If, instead of hitting Return, the user hit Tab ↹, another, possibly computed, prompt would be printed on the same line. This process could be repeated for the full width of the line. This unusual feature allowed very compact data entry, comparable to full-screen CRT data entry. It saved paper, and the input section of the form became part of the program's printed output. A later derivative of TELCOMP called STRINGCOMP was oriented towards string handling. Another BBN JOSS-derivative called FILECOMP was developed for the GE system, which was cancelled. The implicit file handling system it contained was influential on the MUMPS global database system. The initial research for LOGO was carried out in TELCOMP, but only the JOSS-style errors and interaction made it through to the actual language. (en)
  • TELCOMP è un linguaggio di programmazione sviluppato alla (BBN) nel 1965 ed in uso almeno fino al 1974.È un linguaggio interattivo, discorsivo e basato su , sviluppato dopo la visita di Cliff Shaw ai laboratori BBN per conto della RAND nel 1964. La sua prima implementazione si ha sul PDP-1 ed è stato usato per fornire il servizio di time sharing dalla BBN nell'area si Boston e successivamente dalla Time Sharing Ltd. nel Regno Unito. Nel 1996, Leo Beranek disse: "Avevamo sviluppato un linguaggio di programmazione chiamato TELCOMP che ad oggi, secondo alcuni, è migliore del linguaggio di programmazione adottato dal settore, e cioè il BASIC." Vennero sviluppate tre versioni: TELCOMP I, TELCOMP II, TELCOMP III. Il TELCOMP II è stato implementato sul PDP-7 e il TELCOMP III sul PDP-10, la cui esecuzione è affidata al (sistema operativo del DEC) o al TENEX (sistema operativo proprio della BBN). I programmi TELCOMP generalmente ricevono i vari input attraverso un lettore di nastri di carta come il , il quale è connesso al PDP via modem o linea telefonica. I dati potrebbero essere comunque letti da un qualsiasi lettore di nastri di carta compatibile e dalla tastiera della telescrivente. Le prime versioni non avevano nessuna struttura per lo storage online dei dati. Durante l'immissione dei dati, l'utente, risponde attraverso il prompt ad una richiesta inoltrata dal programma. Se invece di premere Invio si premesse il tasto Tab, o un qualunque altro tasto che assolva a questa funzione, il programma stamperebbe il proprio output sulla stessa riga. Questo processo può essere ripetuto per l'intera l'unghezza della linea. Un'evoluzione del TELCOMP più orientata alle stringhe è il linguaggio . (it)
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  • TELCOMP (en)
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  • TELCOMP was a programming language developed at Bolt, Beranek and Newman (BBN) in about 1964 and in use until at least 1974. BBN offered TELCOMP as a paid service, with first revenue in October 1965. The service was sold to On-Line Systems, Inc. (OLS) in 1972. In the United Kingdom, TELCOMP was offered by Time Sharing, Ltd, a partnership between BBN and an entrepreneur named Richard Evans. In 1996, Leo Beranek said "We even developed a programming language called TELCOMP that to this day, some say was better than the programming language that the industry adopted, namely BASIC." (en)
  • TELCOMP è un linguaggio di programmazione sviluppato alla (BBN) nel 1965 ed in uso almeno fino al 1974.È un linguaggio interattivo, discorsivo e basato su , sviluppato dopo la visita di Cliff Shaw ai laboratori BBN per conto della RAND nel 1964. La sua prima implementazione si ha sul PDP-1 ed è stato usato per fornire il servizio di time sharing dalla BBN nell'area si Boston e successivamente dalla Time Sharing Ltd. nel Regno Unito. Vennero sviluppate tre versioni: TELCOMP I, TELCOMP II, TELCOMP III. Un'evoluzione del TELCOMP più orientata alle stringhe è il linguaggio . (it)
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  • TELCOMP (it)
  • TELCOMP (en)
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  • (en)
  • TELCOMP (en)
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