Digital Basics

Question 1

An algorithm is best described as:

Answer 1

A set of instructions for a single specific task

Question 2

Which statement is NOT true about what a byte is?
Used to describe computer memory or storage
The number of bits required to encode a single character in the computer
The smallest unit in binary language
Equal to 8 bits

Answer 2

The smallest unit in binary language

Question 3

Which would be next in the sequence of storage size – bit, byte, kilobyte, and ________?

Answer 3

Megabyte

Question 4

First generation computers used vacuum tubes for processing information. What do fourth generation computers use to process information?

Answer 4

Microchips

Question 5

Which of the following is NOT an example of an input device for a computer?
Keyboard
Speaker
Mouse
Barcode reader

Answer 5

Speaker

Question 6

What are output devices for computers?

Answer 6

VDU, printer, storage, speakers

Question 7

What are the 3 parts of computers?

Answer 7

Central processing unit, input & output

Question 8

If a thermometer is digital, than its’ readout will be a __________ value:

Answer 8

Discrete

Question 9

Which of the following is a correct statement?
A matrix is a pattern of cells that covers the entire area of the image.
A matrix is a pattern of picture elements that covers the entire area of the image.
A matrix is a pattern of detector elements that covers the entire area of the image.
A matrix is a pattern of bytes that covers the entire area of the image.

Answer 9

A matrix is a pattern of cells (rows and columns) that covers the entire area of the image

Question 10

Bit depth or dynamic range is the number of steps between pure black and pure white. An image that is 8 bit would have ____ steps of ‘grey’.

Answer 10

256