Higher Computer Systems

What is an integer?

• A number that can be positive, negative, or zero and can have a decimal place.

• A whole number that can be positive, negative, or zero and cannot have a decimal place.

• A number that is always positive and can have a decimal place.

• A number that is always negative and cannot have a decimal place.

What are floating point numbers?

• Numbers that are always whole and cannot have decimal points.

• Numbers that contain floating decimal points and are recognized by computers as real numbers.

• Numbers that are always positive and do not contain decimal points.

• Numbers that are always negative and contain fixed decimal points.

What is the mantissa in scientific notation?

• The part of a number located before the point.

• The part of a number located after the point.

• The power that is used to determine how far the point has moved.

• The whole number part of a number.

What is the exponent in scientific notation?

• The part of a number located before the point.

• The part of a number located after the point.

• The power that is used to determine how far the point has moved.

• The whole number part of a number.

What is the range in the context of binary numbers?

• The distance from the lowest to the highest in a set of numbers

• The accuracy of reproducing the original denary number

• The amount of storage space available

• The number of bits used to store data

What does precision refer to in the context of binary numbers?

• The distance from the lowest to the highest in a set of numbers

• The accuracy of reproducing the original denary number

• The amount of storage space available

• The number of bits used to store data

What does ASCII stand for?

• American Standard Code for Information Interchange

• American Standard Code for Internet Interchange

• American Standard Code for International Interchange

• American Standard Code for Internal Interchange

How many bits does ASCII use to represent characters?

• 7 bits

• 8 bits

• 16 bits

• 32 bits

What is the maximum number of characters that ASCII can store?

• 128

• 256

• 512

• 1024

How many bits does Extended ASCII use to store a character?

• 8 bits

• 7 bits

• 16 bits

• 32 bits