(any switch that switches from one setting to another)
51Electrical wiring (UK) — The modern UK standards and regulations for electrical wiring no longer differ substantially from those in other European countries. However, there are a number of noteworthy national peculiarities, habits and traditions associated with domestic… …
52Narrative mode — The narrative mode (also known as the mode of narration) is the set of methods the author of a literary, theatrical, cinematic, or musical story uses to convey the plot to the audience. Narration, the process of presenting the narrative, occurs… …
53Barack Obama presidential primary campaign, 2008 — Infobox U.S. federal election campaign, 2008 committee = Obama for America campaign = U.S. presidential election, 2008 candidate = Barack Obama U.S. Senator 2005–present status = Announced February 10, 2007 Presumptive nominee June 3, 2008… …
54Relay — This article is about the electrical component. For other uses, see Relay (disambiguation). Automotive style miniature relay, dust cover is taken off A relay is an electrically operated switch. Many relays use an electromagnet to operate a… …
55IBM System/34 — The IBM System/34 was a minicomputer marketed by IBM from 1978 to 1983. It was a multi user, multi tasking successor to the single user System/32. Most notably, it included two very different processors, one based on System/32 and the second… …
56Residual-current device — A two pole residual current device A Residual Current Device is a generic term covering both RCCBs and RCBOs. A Residual Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the… …
57Chrono Cross — Chrono Cross …
58NTLDR — (abbreviation of NT loader) is the boot loader for all releases of Windows NT operating system up to and including Windows XP and Windows Server 2003. NTLDR is typically run from the primary hard disk drive, but it can also run from portable… …
59Restriction of Hazardous Substances Directive — European Union directive: Directive 2002/95/EC Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment Made by Council Parliament …
60History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …
