u s power systems
51Power transmission — is the movement of energy from its place of generation to a location where it is applied to performing useful work.Power is defined formally as units of energy per unit time.In SI units: 1 watt = 1 joule/s = 1 newton * metre/second… …
52Systems Engineering Laboratories — (also called SEL) was a manufacturer of minicomputers in Fort Lauderdale, Florida. It was one of the first 32 bit realtime computer system manufacturers. Realtime computers are used for process control and monitoring; to accommodate these… …
53systems theory — systems theory, systems analysis The concept of a system is not peculiar to sociology: it is used in any scientific analysis where a researcher is concerned to understand the pattern or structure between any set of parts or units. A system is… …
54Systems Concepts — (now the SC Group) is a company co founded by Stewart Nelson and Mike Levitt focused on making hardware products related to the DEC PDP 10 series of computers. One of its major products was the SA 10, an interface which allowed PDP 10s to be… …
55Power management — is a feature of some electrical appliances, especially copiers, computers and computer peripherals such as monitors and printers, that turns off the power or switches the system to a low power state when inactive. One power management standard… …
56Power control — Power control, broadly speaking, is the intelligent selection of transmit power in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such… …
57Systems theory — is an interdisciplinary field of science and the study of the nature of complex systems in nature, society, and science. More specificially, it is a framework by which one can analyze and/or describe any group of objects that work in concert to… …
58Power strip — Power bar redirects here. For the manufacturer of energy food products, see PowerBar. French/Belgian power strip A power strip (also known as an extension block, power board and by many other variations) is a block of electrical sockets that… …
59Power Mac — Power Macintosh oder auch Power Mac ist der Produktname für die Macintosh Modelle der Firma Apple mit PowerPC Prozessor. Die vorher nur umgangssprachlich benutzte Bezeichnung „Power Mac“ wird von Apple seit den G4 Modellen offiziell verwendet,… …
60Power Mac G5 — Power Macintosh oder auch Power Mac ist der Produktname für die Macintosh Modelle der Firma Apple mit PowerPC Prozessor. Die vorher nur umgangssprachlich benutzte Bezeichnung „Power Mac“ wird von Apple seit den G4 Modellen offiziell verwendet,… …
