Who co-created the UNIX operating system in 1969 with Dennis Ritchie?
A). Bjarne Stroustrup
B). Steve Wozniak
C). Ken Thompson
D). Niklaus Wirth
Where is the headquarters of Intel located?
A). Redmond, Washington
B). Tucson, Arizona
C). Santa Clara, California
D). Richmond, Virginia
'.BAK' extension refers usually to what kind of file?
A). Backup file
B). Audio file
C). Animation/movie file
D). MS Encarta document
'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