This article is about the TXK telephone exchange system. For other uses, see TXK (disambiguation).
TXK (Telephone eXchange Crossbar) was a range of Crossbar exchanges used by the British Post Office telephone network, subsequently BT, between 1964 and 1994. TXC was used as the designation at first, but this was later changed as TXC sounded too much like TXE the code used for later electronic exchanges. Prior to this the GPO had standardised on Strowger for automatic switching and had resisted the adoption of Crossbar, preferring to wait for its electronic switching research to bear fruit. The development of electronic systems however took longer than anticipated and the British equipment manufacturers, particularly Automatic Telephone & Electric (ATE), which later became part of the Plessey group feared that continuing to focus the bulk of their production on Strowger equipment would harm their export sales as Crossbar had already become popular throughout the world.
In response to this, ATE, and later Plessey, developed their own crossbar system, the 5005, and pushed for the GPO to adopt it as an interim measure. Normally the GPO preferred to develop systems in co-operation with the manufacturing companies, from whom they could then purchase competitively rather than allowing one manufacturer to sell it a proprietary system. The situation however was becoming critical, waiting lists for telephone service in the UK were growing embarrassingly long and the manufacturers were becoming more and more reluctant to supply Strowger in the quantities needed by the GPO. Eventually the GPO relented and decided to accept Crossbar equipment into its network.
TxK is an action video game developed by Llamasoft and designed by Jeff Minter. The game was released on the PlayStation Vita on February 11, 2014. The...
TXK (Telephone eXchange Crossbar) was a range of Crossbar exchanges used by the British Post Office telephone network, subsequently BT, between 1964 and...
Texarkana Regional Airport (IATA: TXK, ICAO: KTXK, FAA LID: TXK), also known as Webb Field, is a public use airport located three nautical miles (6 km)...
TxK". Sony Computer Entertainment. 24 April 2013. Jeff Minter. "The Road to TxK: Genesis of a Genre". Llamasoft. "PSN Tuesday: Lightning Returns, TxK...
video game TxK independently for the PlayStation Vita. Due to similarities between Tempest and TxK, Atari, SA blocked the release of TxK on other platforms...
take to Parliament Hill to stand against child abuse". www. txktoday.com. TXK Today. Retrieved September 1, 2019. Seymour, Andrew (June 28, 2016). "'Their...
also produced the unofficial "inspired by" follow-ups Space Giraffe and TxK on the Sony PlayStation Vita. On 24 August 2008, the source code of Tempest...
short-code and speed-dialing. In the UK the Plessey Company produced a range of TXK crossbar exchanges, but their widespread rollout by the British Post Office...
bounded operator T is compact if, for any bounded sequence {xk}, the sequence {Txk} has a convergent subsequence. Many integral operators are compact, and in...
PS3 Fighting Toukiden: The Age of Demons PSVita, PSP Action role-playing TxK PSVita Tube shooter 12 World of Tanks: Xbox 360 Edition XBLA Vehicular combat...
Walsh, Field (February 7, 2016). "Family of man shot by officer sues city". TXK Today. Retrieved July 19, 2022. Oh, Inae. "Terrifying video shows black man...
Jury sentences man to 50 years for attempted murder of a police officer, TXK Today (September 20, 2021). Felton, Emmanuel (April 23, 2020). "A Self-Proclaimed...
PMC 2923612. PMID 20805885. Zeng XC, Wang SX (June 2002). "Evidence that BmTXK beta-BmKCT cDNA from Chinese scorpion Buthus martensii Karsch is an artifact...
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