Match the following terms to their meanings:
I. pixels
II. binary
III. analog
IV. converter
V. transistors
A. a signal that displays in a way that is similar to the thing it represents
B. small picture elements that can turn on or off
C. a number system that uses only 0s and 1s
D. electronic switches
E. specialized integrated circuit
B, C, A, E, D
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Let S be the set of integers (positive, negative, and 0) under the usual operations of addition and multiplication. S is an __________ domain. ?
Fill in the blank(s) with the appropriate word(s).
The QuickSort algorithm is used to sort
a. lists stored in arrays or linear linked lists b. tree data structures c. randomly-ordered files d. All of these e. None of these
If an algorithm needs 4 seconds to run on a set of 2 input data, 9 seconds for 3, 16 for 4, and so on, then what is the complexity of this algorithm?
a. Quadratic b. Linear c. Logarithmic d. This can't be determined
Why is it more important today than decades ago to evaluate the performance of software?
a) Hardware is so fast that the real limiting factor in a computer is the software. b) Hardware is becoming increasingly similar, even between systems constructed by different vendors, so the software affects performance the most. c) Software is becoming increasingly complex so it is harder for programmers to determine if their code is efficient by just looking at the code. d) Software is becoming increasingly complex and often hides the hardware from the user, creating a virtual machine. Cumbersome software can cause a system to execute slowly, even with the most powerful hardware.