The images in the accompanying figure show a mouse, a trackpad, and a trackball. Which of these usually has two or more buttons for issuing commands?
A. trackpad
B. trackball and trackpad
C. trackball
D. mouse
Answer: D
Computer Science & Information Technology
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Fill in the blank(s) with correct word
Computer Science & Information Technology
?The largest wide area network (WAN) in existence is the _____.
A. ?intranet B. ?extranet C. ?Internet D. ?hypernet
Computer Science & Information Technology