Chapter 8

Question 1

In contrast to digital signals, analog signals use only a discrete (finite) set of values for storing data. T or F

Answer 1

False

Question 2

All of the following are advantages of digital storage over analog storage except:

a.
b.A digital recording has an unlimited number of possible values
c.
d.

Answer 2

D

Question 3

In a binary number such as 101X0110, the place of the X digit represents what value in decimal?

Answer 3

16

Question 4

In a binary number such as 1X010110, the place of the X digit represents what value in decimal?

Answer 4

64

Question 5

what does 1101 stand for?

Answer 5

13

Question 6

What binary value is produced by converting the decimal number 17 to binary?

Answer 6

00010001

Question 7

Which of the following is the easiest way to determine a negative number in a signed integer representation?

Answer 7

The left most bit is a 1

Question 8

Which of the following numbers (expressed in scientific notation) is not equivalent to 100.5 (exponent in brackets[])?

Answer 8

1.005 x 10[-2]

Question 9

ASCII code is a program written to convert binary numbers to their decimal equivalents.

Answer 9

False

Question 10

What is analog data?

Answer 10

analog values represent data in a way that is analogous to real life

Question 11

What is digital data?

Answer 11

digital values utilize only a finite set of values

Question 12

T or F
Analog values are extremely easy to reproduce

Answer 12

False

Question 13

How does a computer know what type of data type is being stored?

Answer 13

When a program stores data in memory is has to save additional info that shows the data type. This means that the same bit pattern could correlate to different things in different data types.