Number Storage

Question 1

Convert 76 to Binary

Answer 1

0 1 0 0 1 1 0 0

Question 2

Convert 0 1 1 0 0 0 1 1 to denary

Answer 2

99

Question 3

Convert 1 1 1 1 1 1 1 1 to denary

Answer 3

255

Question 4

Convert 187 to denary

Answer 4

1 0 1 1 1 0 0 1 1

Question 5

Convert 1 1 1 1 0 0 1 0 to Binary

Answer 5

186

Question 6

Convert 1 1 1 1 0 0 1 0 to Hexadecimal

Answer 6

F 2

Question 7

Convert C 7 to denary

Answer 7

1 1 0 0 0 1 1 1 in binary
This is 128+64+4+2+1 = 199

Question 8

Convert 134 to hexadecimal

Answer 8

1 0 0 0 0 1 1 0 in binary
8 6 in Hexadecimal

Question 9

What is an overflow error?

Answer 9

• When a binary value is too large to be stored in the bits available.
• If the sum of two binary numbers > 255.

Question 10

Effect of binary shift left - 1,2,3 places

Answer 10

• *2
• *4
• *8

Question 11

Effect of binary shift right - 1,2,3 places

Answer 11

• /2
• /4
• /8