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Charles Alton "Chuck" Forsberg (May 6, 1944 – September 24, 2015) developed two data transmission protocols popular in the 1990s, for uploading and downloading files from dial-up bulletin board systems. He received a Dvorak Award for Excellence in Telecommunications in 1992 for developing ZMODEM. He was also the project engineer on the Tektronix 4010-series graphics terminals. Jesse Walker cited Forsberg as a participant in WMAS, a pirate radio station at Western Military Academy in Alton, Illinois. He graduated from the academy in 1962.

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dbo:abstract
  • Chuck Forsberg (c. 1944) és un programador estatunidenc, conegut pel desenvolupament de dos populars protocols de transmissió de dades, molt utilitzats en BBSs a la dècada del 1990: YMODEM i ZMODEM. Per aquest últim, va rebre un premi Dvorak per a l'Excel·lència a Telecomunicacions el 1992. (ca)
  • تشاك فورسبرغ (بالإنجليزية: Chuck Forsberg)‏ هو مبرمج وعالم حاسوب أمريكي، ولد في 6 مايو 1944 في ويلميت في الولايات المتحدة، وتوفي في 24 سبتمبر 2015 في بورتلاند في الولايات المتحدة. (ar)
  • Charles Alton „Chuck“ Forsberg (* 6. Mai 1944 in Wilmette, Illinois; † 24. September 2015 in Portland, Oregon) war ein US-amerikanischer Informatiker. Er entwickelte die beiden Kommunikationsprotokolle YMODEM und ZMODEM. Die Protokolle werden zur seriellen Datenübertragung von Dateien zwischen zwei Computersystemen genutzt. (de)
  • Charles Alton "Chuck" Forsberg (May 6, 1944 – September 24, 2015) developed two data transmission protocols popular in the 1990s, for uploading and downloading files from dial-up bulletin board systems. He received a Dvorak Award for Excellence in Telecommunications in 1992 for developing ZMODEM. He was also the project engineer on the Tektronix 4010-series graphics terminals. The widely adopted ZMODEM uses a sliding window protocol. Rather than wait for positive acknowledgment after each block is sent, it sends blocks in rapid succession and resends unacknowledged blocks later. By avoiding delays due to latency, the bandwidth usable for transmission more closely approached the bandwidth of the underlying link. ZMODEM could also resume interrupted transfers without retransmitting the already-received blocks. In addition to developing the protocol, Forsberg developed software for sending and receiving files using ZMODEM. Forsberg then wrote a version, Zmodem G, which was for use over "guaranteed error free" communications lines, such as Ethernet or short serial-to-serial computer connections. This protocol waived the usual retransmission overhead, to send files as fast as possible. Originally, he wrote a program for Unix called rbsb (receive batch / send batch) which used block 0 to transmit a file's name, and optionally date and time, since Ward Christensen designed Xmodem to start at block 1, leaving block 0 available. Christensen suggested Forsberg call his protocol YMODEM because it was "one better" than Xmodem. Forsberg created the program YAM, which in traditional Unix nomenclature stood for Yet Another Modem after "Modem.asm" the original version of Xmodem released by Christensen in the CP/M User's group in 1977. Forsberg most recently resided in Portland, Oregon, prior to his death. He ran data transmission software company Omen Technology which he founded in 1984. Omen Technology published software tools such as ZComm (a terminal-based communications program that included the ZMODEM-90 file transfer protocol) and DSZ. He was an amateur radio operator (call sign WA7KGX) and a licensed aircraft pilot. Jesse Walker cited Forsberg as a participant in WMAS, a pirate radio station at Western Military Academy in Alton, Illinois. He graduated from the academy in 1962. (en)
  • Chuck Forsberg (06 de maio de 1944 - 24 de setembro de 2015) desenvolveu dois protocolos populares de transmissão de dados para carregar e baixar arquivos da rede dial-up dos Bulletin Board System na década de 1990. Ele recebeu um Dvorak Prêmio de Excelência em telecomunicações em 1992 pelo desenvolvimento do ZMODEM Ele também foi o engenheiro de projeto dos terminais gráficos Tektronix 4010. Anteriormente, ele projetou o protocolo YMODEM e criou um programa chamado YAM . Forsberg, antes de sua morte, residia em Portland, Oregon. Ele dirigiu a empresa de software de transmissão de dados Omen Tecnologia o qual fundou em 1984. Ele foi um operador de rádio amador (WA7KGX) e um piloto de aeronaves. (pt)
dbo:activeYearsStartYear
  • 1968-01-01 (xsd:gYear)
dbo:alias
  • Chuck Forsberg (en)
dbo:almaMater
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  • 1944-05-06 (xsd:date)
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  • 1944-01-01 (xsd:gYear)
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  • 2015-09-24 (xsd:date)
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  • 2015-01-01 (xsd:gYear)
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  • 1944-05-06 (xsd:date)
dbp:birthPlace
  • Wilmette, Illinois, USA (en)
dbp:deathDate
  • 2015-09-24 (xsd:date)
dbp:deathPlace
  • Portland, Oregon, USA (en)
dbp:education
dbp:name
  • Charles Alton Forsberg (en)
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  • American (en)
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  • Chuck Forsberg (en)
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  • 1968 (xsd:integer)
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rdfs:comment
  • Chuck Forsberg (c. 1944) és un programador estatunidenc, conegut pel desenvolupament de dos populars protocols de transmissió de dades, molt utilitzats en BBSs a la dècada del 1990: YMODEM i ZMODEM. Per aquest últim, va rebre un premi Dvorak per a l'Excel·lència a Telecomunicacions el 1992. (ca)
  • تشاك فورسبرغ (بالإنجليزية: Chuck Forsberg)‏ هو مبرمج وعالم حاسوب أمريكي، ولد في 6 مايو 1944 في ويلميت في الولايات المتحدة، وتوفي في 24 سبتمبر 2015 في بورتلاند في الولايات المتحدة. (ar)
  • Charles Alton „Chuck“ Forsberg (* 6. Mai 1944 in Wilmette, Illinois; † 24. September 2015 in Portland, Oregon) war ein US-amerikanischer Informatiker. Er entwickelte die beiden Kommunikationsprotokolle YMODEM und ZMODEM. Die Protokolle werden zur seriellen Datenübertragung von Dateien zwischen zwei Computersystemen genutzt. (de)
  • Charles Alton "Chuck" Forsberg (May 6, 1944 – September 24, 2015) developed two data transmission protocols popular in the 1990s, for uploading and downloading files from dial-up bulletin board systems. He received a Dvorak Award for Excellence in Telecommunications in 1992 for developing ZMODEM. He was also the project engineer on the Tektronix 4010-series graphics terminals. Jesse Walker cited Forsberg as a participant in WMAS, a pirate radio station at Western Military Academy in Alton, Illinois. He graduated from the academy in 1962. (en)
  • Chuck Forsberg (06 de maio de 1944 - 24 de setembro de 2015) desenvolveu dois protocolos populares de transmissão de dados para carregar e baixar arquivos da rede dial-up dos Bulletin Board System na década de 1990. Ele recebeu um Dvorak Prêmio de Excelência em telecomunicações em 1992 pelo desenvolvimento do ZMODEM Ele também foi o engenheiro de projeto dos terminais gráficos Tektronix 4010. Anteriormente, ele projetou o protocolo YMODEM e criou um programa chamado YAM . (pt)
rdfs:label
  • Chuck Forsberg (en)
  • تشاك فورسبرغ (ar)
  • Chuck Forsberg (ca)
  • Chuck Forsberg (de)
  • Chuck Forsberg (pt)
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  • Charles Alton Forsberg (en)
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