Panel switch — The panel switching system was an early type of automatic telephone exchange, first put into urban service by the Bell System in the 1920s and removed during the 1970s. The Panel and Rotary systems were developed in parallel by Bell Labs before… … Wikipedia
Robertson Panel — The Robertson Panel was a committee commissioned by the Central Intelligence Agency in 1952 in response to widespread Unidentified Flying Object reports, especially in the Washington DC area. The panel was briefed on U.S. military activities and… … Wikipedia
Front panel — A front panel was used on early electronic computers to display and allow the alteration of the state of the machine s internal registers and memory. The front panel usually consisted of arrays of indicator lamps, toggle switches, and push… … Wikipedia
T-54/T-55 operators and variants — Infobox Weapon name= T 54/55 caption= US Army recognition poster origin= Soviet Union type= Main battle tank is vehicle= yes is UK= yes service= 1947–present used by= wars= designer= Morozov (T 54), OKB 520 (T 54A and later) design date= 1945… … Wikipedia
Graham Kennedy — Infobox Actor name = Graham Kennedy caption = Kennedy during 1970 interview on ABC s This Day Tonight quotation = birth date = birth date|1934|2|15|mf=y birth place = Melbourne, Victoria, Australia dead = dead death date = death date and… … Wikipedia
Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… … Universalium
environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… … Universalium
Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… … Wikipedia
Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… … Universalium
United Nations Framework Convention on Climate Change — UNFCCC logo. The United Nations Framework Convention on Climate Change (UNFCCC or FCCC) is an international environmental treaty produced at the United Nations Conference on Environment and Development (UNCED), informally known as the Earth… … Wikipedia
