Data: Unit 12

Question 1

• What is binary?

Answer 1

• information represented by only two values.

Question 2

• What is analogue?

Answer 2

• using signals or information represented by a quantity that is continuously variable.

Question 3

• what is a binary digit?

Answer 3

• the smallest unit of data is represented in a computer.

Question 4

• what is an overflow error?

Answer 4

• this condition occurs when a calculation produces a result that is greater than the computer can deal with or store, when this happens the microprocessor is informed that an error has occurred.

Question 5

• What is an integer?

Answer 5

• a whole number

Question 6

• What is the MSB (most significant bit)?

Answer 6

• the bit with the highest value ina multiple bit binary number.

Question 7

• what is binary shift?

Answer 7

• an operation done on all the bits of a binary value in which they are moved by a specific number of places to either left or right.

Question 8

• What is arithmetic shift?

Answer 8

• used for signed binary numbers, when performing a right shift, the bits at the left are replaced by copies of the most significant bit.

Question 9

• what is hexadecimal?

Answer 9

• a base -16 number system. There are 16 digits and the place value increase in powers of 16.