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