Computer Systems (Data Representation)

Question 1

What do Computer Systems use to store data?

Answer 1

Binary

Question 2

What is the Binary value of 123?

Answer 2

01111011

Question 3

What is the Denary value of 10101001?

Answer 3

169

Question 4

How are real numbers stored on a computer?

Answer 4

By the Mantissa and the Exponent

Question 5

What is the Mantissa?

Answer 5

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

Question 6

What is the Exponent?

Answer 6

The Exponent is the “power” of the scientific notation

Question 7

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

Answer 7

Floating Point Representation

Question 8

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

Answer 8

ASCII (American Standard Code for Information Interchange)

Question 9

What is the limit of ASCII?

Answer 9

256

Question 10

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

Answer 10

Resolution

Question 11

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

Answer 11

Bit-Depth

Question 12

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

Answer 12

Vector Graphic

Question 13

How are Vector Graphics stored?

Answer 13

By it’s attributes

Question 14

What are some examples of attributes of vector graphics?

Answer 14

Line Colour
Fill Colour
Co-Ordinates

Question 15

What are the types of vector objects?

Answer 15

Rectangle
Line
Ellipse
Polygon

Question 16

What is a definition of fill colour?

Answer 16

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

Question 17

What is the definition of line colour?

Answer 17

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