electronic office switchboard
41Amiga support and maintenance software — This article is a split of main article Amiga software and refers to any support and maintenance software that run on Amiga line of computers.See also related articles Amiga productivity software and Amiga Internet and communications software for …
42DNSSEC — The Domain Name System Security Extensions (DNSSEC) are a suite of IETF specifications for securing certain kinds of information provided by the Domain Name System (DNS) as used on Internet Protocol (IP) networks. It is a set of extensions to DNS …
43Hexavalent chromium — Hex chrome redirects here. For the color printing process, see Hexachrome. An example of a chromium(VI) compound: chromium trioxide Hexavalent chromium (chromium VI) refers to chemical compounds that contain the element chromium in the +6… …
44David J. McDonald — For other people named David McDonald, see David McDonald (disambiguation). David John McDonald (November 22, 1902 – August 8, 1979) was an American labor leader and president of the United Steelworkers of America from 1952 to 1965. Contents 1… …
45telephone — tel|e|phone1 [ telə,foun ] noun *** 1. ) count a piece of electronic equipment that you use for speaking to someone in a different place. A telephone is often simply called a phone: They ve got a telephone next to their bed. a mobile telephone a… …
