null can be used:
(a) to indicate a variable has no real value
(b) in a Boolean expression with ==
(c) as a placeholder
(d) all of the above
(d) all of the above
Computer Science & Information Technology
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When a line of text contains a revision, a ________ displays in the left margin
A) balloon B) comment C) horizontal change bar D) vertical change bar
Computer Science & Information Technology
Which of the following memory modules uses a 240-pin connector?
A. DDR B. SIMM C. DDR2 D. RAMBUS
Computer Science & Information Technology