General knowledge:: Technology

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11 

'CD' computer abbreviation usually means ?

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

12 

In which decade was the ARRL founded?

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

13 

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

14 

'DTP' computer abbreviation usually means ?

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

15 

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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