Number system 2

The decimal number 45 saves in to one’s complement representations using 8 bits is?.

• 1010 1101

• 1001 0010

• 0010 0010

• 0010 1101

The decimal number 0,1825 saved in binary system is equal:

• 0,1111

• 0,1011

• 0,0011

• 0,001

The representation of a binary number is defined as the value obtained by inverting all the bits in the binary representation of the number (swapping 0s for 1s and vice versa) is called

• two’s complement representation

• ones’ complement

• signed-magnitude representation

• insigned magnitude representation

An example of commutative law in Boolean's algebra are:

• A + B = B + A

• A× B = B × A

• (A + B) + C = A + (B + C)

• A × (B+ C) = A × B + A × C

The Boolean AND is a(n) unary operator.

• true

• false

In a decimal equivalent number hexadecimal number FF is equal:

• 16

• 255

• 25

• 256

The result of operation 1101110-1111 in binary system will be:

• 1101111

• 1111000

• 1011111

• 1001111

The number of borrows when subtracting 11110000 -11 is:

• 1

• 2

• 3

• 4

Find -4 using two's complement numbers

• 1101

• 1100

• 1011

• 1100

Those operation complements the value of a Boolean expression.

• AND

• OR

• NOT

• XOR