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Understanding Key ICT Vocabulary: Antivirus, Asymmetric, Binary, Frequency, Gigahertz, Modulation

Explore essential ICT terminology including antivirus, asymmetric, binary, frequency, gigahertz, and modulation. "Antivirus" refers to software designed to detect and eliminate viruses, while "asymmetric" describes a lack of correspondence in size or shape, exemplified by ADSL. Learn about binary systems, frequency rates in processing, and the measurement of gigahertz in cycles per second. Modulation involves changing forms or regulating signals. These definitions will enhance your understanding of ICT concepts and their applications.

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Understanding Key ICT Vocabulary: Antivirus, Asymmetric, Binary, Frequency, Gigahertz, Modulation

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  1. ICT Vocabulary Guide Sam Testa 10030615

  2. antivirus • (anti-vahy-ruh’s) • Definition: Software designed to detect and destroy computer viruses. • Example: Norton Antivirus • Origin: Latin / Greek • Anti (Greek) – against, opposite, instead of • Virus (Latin) – poison, sap or plants, slimy liquid • Viscum (Latin) – sticky substance • Ios (Greek) – poison • It literally means: against poison • Related words: antisocial, viral, virology

  3. Asymmetric • (ey-suh-me-trik) • Definition: Having parts which fail to correspond to one another in shape, size, or arrangement; lacking symmetry. • Example: Asymmetric Digital Subscriber Line (ADSL). The download portion of the bandwidth is larger than the upload portion. • Origin: Greek • A – not • Symmetros – having a common measure • Sym – similar • Metros – measure • It literally means: not similar measure • Related words: symmetry, asynchronous

  4. Binary • (bahy-nuh-ree) • Definition: Relating to, composed of, or involving two things. • Example: Binary system • Origin: Latin • Binarius – consisting of two • It literally means: consisting of two • Related words: bicycle, biannual

  5. Frequency • (free-kwuh’n-see) • Definition: The rate at which something occurs over a particular period of time or in a given sample. • Example: Processor frequency • Origin: Latin • Frequentem – crowded, repeated • It literally means: repeated • Related words: frequent

  6. Gigahertz • (gig-uh-hurts) • Definition: A measure of frequency, related to one thousand million cycles per second. • Example: 2.4gHz processor • Origin: Greek • Gigas – giant • Hertz – German physicist Heinrich Hertz (demonstrated existence of electromagnetic waves). Hertz is a measure of frequency that was named after him. • It literally means: giant frequency • Related words: megahertz, kilohertz, gigabyte, gigantic

  7. Modulation • (moj-uh-ley-shuh’n) • Definition: Changing from one form into another. • Altering the amplitude or frequency of an oscillation in accordance with variations of a second signal. • Example: Modem – modulator / demodulator • Origin: Latin • Modulatio – rhythmical measure, singing and playing, melody • Modulatus – regulate, measure off properly • It literally means: regulation • Related words: modem, demodulation, module

  8. Image Sources • http://en.wikipedia.org/wiki/Asymmetry • http://akorra.com/2011/07/04/top-10-universal-languages/ • http://www.qrg.northwestern.edu/projects/vss/docs/communications/1-what-is-frequency.html • http://au.shopping.com/Intel-Intel-Core-2-Duo-E8600-3-33GHz-Dual-Core-1333MHz-FSB-6MB-L2-Cache-Socket-LGA775-Wolfdale-45nm/info • http://www.tech-faq.com/pulse-position-modulation.html

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