What technology converts light into digital information?

A) Webcam
B) Microphone
C) Fitness monitor
D) Sound card


A

Computer Science & Information Technology

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Which of the following happens when you enter the formula =G15 into a cell?

A. Excel recalculates all formulas in the worksheet B. Excel assigns the sum of the values in the previous 15 cells to the active cell C. Excel assigns the value in cell G15 to the active cell D. Nothing; =G15 is an invalid formula

Computer Science & Information Technology

To create a copy of a file onto a different storage device or with a different name, you use the ________ command

A) Open B) Save C) Save As D) Open As

Computer Science & Information Technology

Digital signatures are used for which of the following?

a. To encrypt a message b. To ensure message confidentiality c. To prove the identity of the sender of the message d. To ensure the message cannot be opened by anyone but the sender

Computer Science & Information Technology

A range ________ is a label for a cell or range of cells which can be used in formulas.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology