Data and Information

Question 1

What does a ICT system consist of?

Answer 1

• Data
• Information
• Software
• hardware
• People
• Procedures

Question 2

What is meant by data?

Answer 2

Raw stats and figures which do not have a meaning to humans

Question 3

How can you input data?

Answer 3

• Keyboard
• Speech recognition using a mic
• Webcam
• Touch screen
• Sensors
• Bar-code reader

Question 4

What is direct data capture?

Answer 4

Collecting data for a particular purpose. E.g. reading bar-code of of product at the till to identify it.

Question 5

What is indirect data?

Answer 5

Collection of data as a by-product from another purpose. E.g. using data from a bar-code to see stock levels.

Question 6

What is encoding data?

Answer 6

Encoding data is putting data into an appropriate binary code.

Question 7

What is binary code?

Answer 7

Binary code is a system used to represent different types of data. It is represented by either 0 or 1

Question 8

What is Coding data?

Answer 8

Shortening the original data into an agreed manner. For example gender is shortened to M or F

Question 9

Why are codes used?

Answer 9

• Easy to remember
• Quicker to enter
• Take up less storage

Question 10

What is information?

Answer 10

Information is data which has been processed and converted to give it meaning to a human being.