Q.21) In the United States the television broadcast standard is...?
Q.22) The transformer that develops the high voltage in a home television is commonly called a...?
(A) Tesla coil
(D) Van de Graaf
Q.23) Which consists of two plates separated by a dielectric and can store a charge?
Q.24) .JPG' extension refers usually to what kind of file?
(A) System file
(B) Animation/movie file
(C) MS Encarta document
(D) Image file
Q.25) In what year was the "@" chosen for its use in e-mail addresses?
Q.26) .TXT' extension refers usually to what kind of file?
(A) Text File
(B) Image file
(C) Audio file
(D) Adobe Acrobat file
Q.27) The NTSC (National Television Standards Committee) is also used in the country of...?
Q.28) Who built the world's first binary digit computer: Z1...?
(A) Konrad Zuse
(B) Ken Thompson
(C) Alan Turing
(D) George Boole
Q.29) 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
Q.30) The average power (in watts) used by a 20 to 25 inch home color television is...?
(D) Over 1000