Technology - Study Mode
[#61] '.JPG' extension refers usually to what kind of file?
Correct Answer
(D) Image file
[#62] What does AM mean?
Correct Answer
(C) Amplitude modulation
(G) Amplitude modulation
Explanation
Solution: Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.
[#63] In what year was the "@" chosen for its use in e-mail addresses?
Correct Answer
(B) 1972
[#64] '.TXT' extension refers usually to what kind of file?
Correct Answer
(A) Text File
[#65] What was the first ARPANET message?
Correct Answer
(A) lo