Computer Systems (Data Representation) Flashcards

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1
Q

What do Computer Systems use to store data?

A

Binary

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2
Q

What is the Binary value of 123?

A

01111011

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3
Q

What is the Denary value of 10101001?

A

169

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4
Q

How are real numbers stored on a computer?

A

By the Mantissa and the Exponent

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5
Q

What is the Mantissa?

A

The mantissa is the “number” part of the scientific notation

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6
Q

What is the Exponent?

A

The Exponent is the “power” of the scientific notation

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7
Q

What is the name of the method of storing real numbers on a computer?

A

Floating Point Representation

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8
Q

What is the name given to the binary code for all characters?

A

ASCII (American Standard Code for Information Interchange)

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9
Q

What is the limit of ASCII?

A

256

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10
Q

What is the name of the total number of pixels in a bit-mapped image?

A

Resolution

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11
Q

What is the name of the total number of colours used in a a bit-mapped image?

A

Bit-Depth

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12
Q

Bit-Mapped images are one type of graphic. What is the other type of graphic?

A

Vector Graphic

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13
Q

How are Vector Graphics stored?

A

By it’s attributes

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14
Q

What are some examples of attributes of vector graphics?

A

Line Colour
Fill Colour
Co-Ordinates

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15
Q

What are the types of vector objects?

A

Rectangle
Line
Ellipse
Polygon

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16
Q

What is a definition of fill colour?

A

Fill Colour is the colour used to fill the inside of a vector graphic

17
Q

What is the definition of line colour?

A

Line Colour is the colour used on the rim of the vector graphic