frequency-protection circuit
91Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
92Electromagnetic compatibility — (EMC) is the branch of electrical sciences which studies the unintentional generation, propagation and reception of electromagnetic energy with reference to the unwanted effects (Electromagnetic Interference, or EMI) that such energy may induce.… …
93Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by …
94Power line communication — or power line carrier (PLC), also known as power line digital subscriber line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN), or broadband over power lines (BPL) are systems for carrying data on a conductor… …
95Smoke detector — A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a… …
96Computer network — Computer networks redirects here. For the periodical, see Computer Networks (journal). Datacom redirects here. For other uses, see Datacom (disambiguation). Internet map. The Internet is a global system of interconnected computer networks that… …
97thunderstorm — /thun deuhr stawrm /, n. a transient storm of lightning and thunder, usually with rain and gusty winds, sometimes with hail or snow, produced by cumulonimbus clouds. Also called electrical storm. [1645 55; THUNDER + STORM] * * * Violent, short… …
98Airport — For other uses, see Airport (disambiguation). Pulkovo Airport in Saint Petersburg, Russia (2005) …
99List of computing and IT abbreviations — This is a list of computing and IT acronyms and abbreviations. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y …
100Digital video recorder — Foxtel iQ, a combined digital video recorder and satellite receiver. V+, a combined digital vid …
