mains adapters
21Cooler — For other uses, see Cooler (disambiguation). Portable Ice Chest, U.S. Patent # 2,663,167 (1953). A cooler, cool box,[1] portable ice chest, chilly bin (in New Zealand), or esky (Australia) most commonly is an insul …
22Battery charger — This unit charges the batteries until they reach a specific voltage and then it trickle charges the batteries until it is disconnected …
23Xbox 360 — Xbox 360 …
24History of laptops — Before laptop/notebook computers were technically feasible, similar ideas had been proposed, most notably Alan Kay s Dynabook concept, developed at Xerox PARC in the early 1970s.The first commercially available portable computer was the Osborne 1 …
25Read Only Memory — The notion of read only data can also refer to file system permissions. Read only memory (usually known by its acronym, ROM) is a class of storage media used in computers and other electronic devices. Because data stored in ROM cannot be modified …
26Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
27Channel memory — An automatic channel memory system (ACMS) is a system in which a digitally controlled radio tuner such as a TV set or VCR could search and memorize TV channels automatically. While more common in television, it can also be used to store presets… …
28Cheater plug — For the cheater cord, a cable formerly used by radio technicians, see Vacuum tube#AC power. A cheater plug, with metal grounding tab A cheater plug, AC ground lifter or three prong/two prong adapter is an adapter that allows a NEMA 5 15P… …
