General knowledge:: Technology

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'CD' computer abbreviation usually means ?

A. Command Description B. Change Data
C. Copy Density D. Compact Disc


In which decade was the ARRL founded?

A. 1940s B. 1930s
C. 1920s D. 1910s


What does AC and DC stand for in the electrical field?

A. Alternating Current and Direct Current B. A Rock Band from Australia
C. Average Current and Discharged Capacitor D. Atlantic City and District of Columbia


'DTP' computer abbreviation usually means ?

A. Digital Transmission Protocol B. DeskTop Publishing
C. Data Type Programming D. Document Type Processing


Compact discs, (according to the original CD specifications) hold how many minutes of music?

A. 74 mins B. 56 mins
C. 60 mins D. 90 mins

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