Nat 5 Computer Systems Revision

What is the binary of 131?

• 10000011

• 10000001

• 10001010

• 10000111

What is the denary of 01000110?

• 70

• 72

• 77

• 68

What is the MANTISSA and EXPONENT for this number?

222222.333

• Mantissa = .222222333 Exponent = 6

• Mantissa = .6 Exponent = 222222333

• Mantissa = .2222333333 Exponent = 6

• Mantissa = .222222333 Exponent = 5

How does the computer store positive numbers?

• Binary

• Denary

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How does the computer store LARGE or decimal numbers?

• Mantissa and Exponent

• 2D array of Pixels

• Ascii

• by the attributes of objects

How does the computer store Text?

• Mantissa and Exponent

• 2D array of Pixels

• Ascii

• by the attributes of objects

How does the computer store Bitmap graphics?

• Mantissa and Exponent

• 2D array of Pixels

• Ascii

• by the attributes of objects

What are the advantages of BitMap Graphics?

More than 1 option.

• File size stays the same

• Can edit at pixel level

• Can resize and/or zoom in without Pixelation

• Resolution Independent

What are the disadvantages of BitMap Graphics?

More than 1 option.

• Pixelation happens when resize or zoom in

• File size increases when add more to the image

• Cannot relayer objects

• Resolution Independent

What are the advantages of Vector Graphics?

More than 1 option.

• No Pixelation when resize or zoom in

• File size increases when add more to the image

• Can relayer objects

• Edit at pixel level