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Line 3: <!-- For administrator use only: {{Old AfD multi\|page=Chuck Forsberg\|date=8 December 2010\|result='''keep'''}} --> <!-- End of AfD message, feel free to edit beyond this point --> '''Chuck Forsberg''''s fame comes in part from developing the [[YMODEM]] and [[ZMODEM]] [[file transfer protocol]]s. ZMODEM is a file transfer [[Protocol (computing)\|protocol]] with the usual error checking features. ZMODEM was notable for its early use of a [[sliding window protocol]]. It does not wait for positive acknowledgment after each block is sent, but rather sends blocks in rapid succession. This avoids delays due to [[latency]] and allows the useful bandwidth for transmission to more closely approach the bandwidth of the underlying link. A feature that was greatly welcomed by its users was its ability to resurrect a previous transfer that had been cancelled or interrupted for any reason, the transfer resuming without needing the previously transferred information not be resent. '''Chuck Forsberg'''' developed two [[data transmission]] protocols popular for [[uploading and downloading]] files from dial-up [[bulletin board system]]s in the 1990s. He received a [[Dvorak Awards\|Dvorak Award for Excellence in Telecommunications]] in 1992 for developing ZMODEM.<ref>{{cite web \|url=http://www.citivu.com/dvorak/#1992 \|title=Dvorak Awards \|author=[[John C. Dvorak]] \|date= \|work= \|publisher= \|accessdate=8 December 2010}}</ref> Chuck Forsberg designed YMODEM as a file transfer protocol for use between modems and developed it as the successor to [[XMODEM]] and [[MODEM7]], It was formally given the name "YMODEM" (Yet another Modem implementation) in 1985 by [[Ward Christensen]]. The widely adopted [[ZMODEM]] used a [[sliding window protocol]]. Rather than wait for positive acknowledgment after each block is sent, it sent blocks in rapid succession and resent unacknowledged blocks later. By avoiding delays due to [[latency]], the bandwidth usable for transmission more closely approached the [[bandwidth (computing)\|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. ~~==Other biographical information==~~ Chuck Forsberg graduated from [[Western Military Academy]] in 1962. Forsberg founded the company Omen Technology, which still specializes in data transfer software, in 1984. He is an amateur radio operator (call sign WA7KGX), and a licensed aircraft pilot. He currently resides in [[Portland, Oregon]]. Previously, he designed the [[YMODEM]] protocol and created its first [[implementation]], a program called ''YAM''. Forsberg currently resides in [[Portland, Oregon]]. He runs data transmission software company Omen Technology which he founded in 1984.{{primary source claim\|date=December 2010}} He is an amateur radio operator (call sign WA7KGX) and a licensed aircraft pilot.{{primary source claim\|date=December 2010}} [[Jesse Walker]] cited Forsberg as a participant in WMAS, a [[pirate radio\|pirate radio station]] at [[Western Military Academy]] in [[Alton, Illinois]].<ref>{{cite book \| last = Walker \| first = Jesse \| authorlink = Jesse Walker \| title = Rebels on the Air: An Alternative History of Radio in America \| publisher = [[NYU Press]] \| year = 2001 \| isbn = 978-0814793817 \| pages = 199, 305 \| url = http://books.google.com/books?id=x5JgShfNfaQC }}</ref> He graduated from the academy in 1962. ==References== {{reflist}} [http://www.omen.com Forsberg's corporate Web site]▼ ==External links== ▲*[http://www.omen.com/ ~~Forsberg's~~Omen ~~corporate~~Technology ~~Web~~web site] {{DEFAULTSORT:Forsberg, Chuck}} [[Category:Living people]] [[Category:Year of birth missing (living people)]] ~~{{compu-bio-stub}}~~

Chuck Forsberg: Difference between revisions