The ____ decode(s) each instruction that enters the computer.
A. control unit
B. arithmetic logic unit
C. memory
D. input and output units
Answer: A
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Switching computers and peripherals completely off when not in use requires connecting the system through a(n) ____________________ or outlet that has a cutoff switch.
Fill in the blank(s) with the appropriate word(s).
A stereo pair of air photos is particularly useful in studying ________ landscape features
A) topographic B) plant stress induced C) human-made D) salt-affected E) parent material
Technician Asays semi-metallic materials are made from a mixture of organic or synthetic fibers. Technician B says semi-metallic metals are softer and less fade resistant than organic materials. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The signal x [n] is defined in Figure E.14. Let y [n] be the first backward difference of x [n] and let z [n] be the accumulation of x [n] . (Assume that x [n] is zero for all n < 0).
(a) What is the value of y [4] ?
(b) What is the value of z [6] ?