CIS1000C Computer Science Illuminated Chapters 2-5

In base 16, the digit E corresponds to what decimal value?

14

Which of the following is a value less than zero with a sign opposite to its positive counterpart? A) number B) natural number C) integer D) negative number E) rational number

D. Negative Number

Which unit of binary storage has a size that is processor-dependent? A) byte B) nibble C) bit D) word E) block

D. Word

How many digits are there in the decimal number system?

10

What is the decimal value of the largest digit in the hexadecimal number system?

15

How many digits are there in the hexadecimal number system?

16

How many digits are there in the binary number system?

2

What is the largest digit in the octal number system?

7

How many digits are there in the octal number system?

8

What is the largest digit in the decimal number system?

9

Which number represents a value in every number system? A) 0 B) 1000 C) 10 D) 11 E) 100

A. 0

Which of the following is a unit in an abstract mathematical system subject to the laws of arithmetic? A) number B) natural number C) integer D) negative number E) rational number

A. Number

Which of the following describes the number 0 and any number that can be obtained by repeatedly adding one to it? A) number B) natural number C) integer D) negative number E) rational number

B. Natural Number

What is the lowest base in which the number 10 could be a valid number?

Binary

What is the lowest base in which the number 1000 could be a valid number?

Binary

What is a single binary digit called?

Bit

What is a group of eight binary digits called?

Byte

Which number represents the value of the base in every number system? A) 0 B) 1 C) 10 D) 11 E) 100

C. 10

Which of the following describes a natural number, the negative of a natural number, or zero? A) number B) imaginary number C) integer D) negative number E) rational number

C. Integer

Which of the following can be used to express the value of every number in any number system? A) base B) quotient C) polynomial D) rational number E) radix

C. Polynomial

What is the lowest base in which the number 987 could be a valid number?

Decimal

Which of the following is an integer or the quotient of two integers (excluding division by zero)? A) number B) natural number C) integer D) negative number E) rational number

E. Rational Number

True or False? A rational number is any number that can be expressed without a fractional part.

False

True or False? Binary numbers are important in computing because numbers in every base can be converted into them.

False

True or False? Binary numbers can be converted to octal, but not to hexadecimal.

False

True or False? Grace Murray Hopper is credited with being the first programmer.

False

True or False? The base of a number system determines the number of digit positions that can be used for any number in the system.

False

True or False? The base of the hexadecimal number system is 15.

False

True or False? The digits used in base 8 are 1 through 8.

False

True or False? The letter C is used to represent the number 11 in hexadecimal.

False

True or False? The number of bits in a word is the same on all machines.

False

True or False? The value of each position in a number system is determined by subtracting the base from the position number.

False

True or False? Three octal digits can be stored in one byte.

False

True or False? A byte is made up of eight binary digits.

True

True or False? A natural number is the number 0 or any number obtained by adding 1 to a natural number.

True

True or False? A value of a number in any base can be expressed as a polynomial expression.

True

True or False? An abacus uses positional notation to represent values.

True

True or False? Grace Murray Hopper participated in the design of the COBOL programming language.

True

True or False? Representing a number in base 5 sometimes requires more digits than representing that same number in base 10.

True

True or False? Starting from the right, every group of four binary digits can be read as one hexadecimal digit.

True

True or False? The base of a number system determines the number of digits used in the system.

True

True or False? The base of the binary number system is 2.

True

True or False? The category of numbers called integers includes negative numbers.

True

True or False? The number 10 represents the base value in every number system.

True

True or False? There is one set of underlying principles governing all numbers systems.

True

True or False? Two hexadecimal digits can be stored in one byte.

True