Binary

Question 1

What is the Denary system?

Answer 1

A number system with a base value of 10. It counts in multiples of 10.

Question 2

What is a Binary system?

Answer 2

A number system with a base of 2. It counts in the multiples of 2.

Question 3

Define Bit

Answer 3

The unit of memory that is used to store a binary digit.

Question 4

1 kilobyte (1 kB) is equal to how many bytes?

Answer 4

1000 bytes

Question 5

Define nibble.

Answer 5

The unit of memory that is used to store 4 binary digits.

Question 6

1 terabyte (1 TB) is equal to how many gigabytes?

Answer 6

1000 GB

Question 7

How many binary combinations are possible in a n-bit system?

Answer 7

2n binary combinations

Question 8

What is an overflow error?

Answer 8

An error that occurs when the maximum storage capacity of a register is exceeded.

Question 9

True or False: Binary equivalent of 8 shifted to left by one place is the binary equivalent of 4

Answer 9

False. The binary equivalent of 8 shifted to left by one place is the binary equivalent of 16

Question 10

What is two’s complement?

Answer 10

A method to represent negative numbers. E.g.: Representing -5.
5 = 101
+5 = 0101. Each bit is inverted and 0101 becomes 1010.
1010 + 1=1011. -5=1011