1. Select one or more of the following statements that are valid/true when a programer or CPU designer decides to increase the number of bits used to represent a certain type of data value.

More complex CPU circuitry will be needed to manipulate the data values

Primary and secondary storage capacity requirements for those data values will decrease

Some values can be represented with greater accuracy

Values must be represented using excess notation

A larger range of values can be represented

2. Choose one or more of the following statements that describe valid/correct reasons why a programmer should NOT use a floating point data type to store integer data?

		Truncation may cause an integer value input by a user to be stored inexactly
		Overflow and underflow may occur
		Truncation may lead to computation errors

3. Which of the following data representation formats is the most compact format used to represent real numbers within a CPU?

IEEE binary64

twos complement

ASCII

EBCDIC

IEEE decimal128

IEEE binary32

IEEE decimal64

IA5

IEEE binary128

4. Select one or more of the following data representation format(s) that are used to represent real numbers within a CPU?

IEEE binary32

twos complement

IEEE decimal64

IEEE binary128

IEEE binary64

EBCDIC

IEEE decimal128

IA5

ASCII

5. Select one or more of the following phrases that describe valid/true reasons why modern computers represent and process all data values as sequences of binary digits?

Binary digits can be processed by relatively cheap and reliable two-state electrical devices

Binary digits can easily represent non-numeric conceptual data such pictures and the meaning of English words

Binary values correspond directly to values in hexademical logic

Binary digits are easily represented as binary electrical signals for reliable data transport

6. What binary value represents the result of the computation 1 + 1

11

10

2

-2

1F

7. Which of the following decimal values is equivalent to the binary number 011000

		21
		42
		3
		24
		101,010

8. Which of the following data coding methods is the most modern format used to encode printable characters as integer values?

		IEEE binary128
		Unicode
		excess notation
		ASCII
		IA5
		twos complement
		IEEE binary32
		IEEE binary64
		EBCDIC

9.

Which answer(s) below make the following sentence true? When reading the numeric value 12345, the reader should know that the value CANNOT be a ___________ number.

		octal
		hexadecimal
		decimal
		binary 10. Floating point formats such as IEEE binary32 store a real number in three "pieces" - the sign bit, exponent, and _____