1. In negative logic, the logic state 1 corresponds to

A. negative voltage
B. zero voltage
C. more negative voltage
D. lower voltage level
E. None of the above

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2. Which of the following is a part of the Central Processing Unit?

A. Printer
B. Keyboard
C. Mouse
D. Arithmetic Logic Unit
E. None of the above

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3. The least expensive OCR units can read

A. hand printed numbers
B. machine printed numbers
C. marks
D. handwriting
E. None of the above

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4. The input unit of a computer

A. feeds data to the CPU or memory
B. retrieves data from CPU
C. directs all other units
D. All of the above
E. None of the above

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5. File specification books are created primarily for the use of

A. systems analysts
B. programmers
C. operators
D. managers
E. None of the above

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