PCS 2 Flaschcards

What is the maximum positive value that can be represented in an 8-bit two's complement system?

• 127

• 128

• 255

• 256

What is the minimum negative value that can be represented in an 8-bit two's complement system?

• -127

• -128

• -255

• -256

What is the result of adding binary numbers in two's complement?

• +2

• +5

• -2

• 0

What is the value of the binary number 00000111 in decimal?

• +7

• -7

• +5

• -5

What is the value of the binary number 11111011 in decimal using two's complement?

• -5

• +5

• -7

• +7

What is the effect of a logical left shift on a binary number?

• Dividing by 2

• Multiplying by 2

• Adding 1

• Subtracting 1

In a logical left shift, what happens to the most significant bit (MSB)?

• It is shifted right

• It remains unchanged

• It is shifted left, out of the pattern

• It is replaced by 1

What is placed into the vacated location on the right (LSB) during a logical left shift?

• 1

• 0

• The original MSB

• The original LSB

What happens to the least significant bit (LSB) during a logical right shift?

• It is shifted left.

• It is shifted right, out of the pattern.

• It remains unchanged.

• It is replaced by a 1.

What is always inserted into the vacated most significant bit (MSB) during a logical right shift?

• 1

• 0

• The original LSB

• A random bit