Data Representation / Systems Revision - Higher Computing

Convert 11111111 using two's complement

• -1

• -127

• 0

• 1

This stores text using 16 bits per character.

In floating point storage, increasing the precision of numbers that can be stored can be achieved by increasing the number of bits assigned to store the...

• mantissa

• exponent

In floating point storage, increasing the range of numbers that can be stored can be achieved by increasing the number of bits assigned to store the...

• mantissa

• exponent

A system stores numbers using two's complement. Each number takes up 6 bits. What range of numbers can be stored?

• -32 to 31

• -64 to 63

• -32 to 32

• -31 to 32

Which of these is an advantage of bit-mapped graphics over vector graphics storage

• Can edit individual pixels

• Always takes up less storage space

• Allows layering of objects

• Can scale up without pixelation

Which of these is an advantage of bit-mapped graphics over vector graphics storage

• Can store captured images such as photos

• Always takes up less storage space

• Allows layering of objects

• Can scale up without pixelation

Which of these is an advantage of vector graphics over bit-mapped graphics storage

• Can store captured images such as photos

• Always takes up less storage space

• Allows layering of objects

• Can edit individual pixels

Which of these is an advantage of vector graphics over bit-mapped graphics storage

• Can store captured images such as photos

• Always takes up less storage space

• Allows scaling up without pixelation

• Can edit individual pixels

What is the first step of the fetch-execute cycle?

• The address bus is set up with the address of the next instruction (by copying it into the M.A.R.)

• The read control line is activated

• The instruction is retrieved from the memory location and sent along the data bus to the CPU

• The instruction is decoded by the decoder and executed