Chapter 1 - Data, Information, Knowledge and Processing

Question 0

What is information?

Answer 0

Information is data put into context to give it a meaning.

Question 1

What is data?

Answer 1

Data is the raw facts and figures before they have been processed.

Question 2

What is knowledge?

Answer 2

Knowledge is the understanding of rules used to interpret information.

Question 3

Named the five representation methods

Answer 3

Text, graphics, sound, moving pictures and LED

Question 4

What’s the advantages of having text as a representation method?

Answer 4

You can have lots of detail and it’s clear to understand

Question 5

What’s the disadvantages of having text as a representation method?

Answer 5

You have to be in the line of sight, you need to be able to read and you need to understand the language

Question 6

What’s one Advantage of having graphics as a representation method?

Answer 6

It’s universal

Question 7

What’s the disadvantages of having graphics as a representation method?

Answer 7

You need to be in the line of sight and you need to know what the symbol means

Question 8

What’s the advantages of having sound as a representation method?

Answer 8

It’s good for the visually impaired and you don’t need a line of sight

Question 9

What’s the disadvantages of having sound as a representation method?

Answer 9

It’s not good for the audibly impaired
People may not know the sound
It will be distorted in large areas

Question 10

What’s the advantages of having moving pictures as a representation method?

Answer 10

It’s universal and lots of information can be given at once

Question 11

What is the disadvantages of having moving pictures as a representation method?

Answer 11

The visually impaired won’t be able to see it and it’s linear so you need see the beginning to understand

Question 12

What are the advantages of having LED as a representation method?

Answer 12

Data can be kept secure and it’s universal

Question 13

What are the disadvantages of having LED as a representation method?

Answer 13

You need to be in the line of sight and the combination of lights needs to be known to understand

Question 14

What does LED stand for?

Answer 14

Light emitting diode

Question 15

Name five data types

Answer 15

Boolean, real, integer, string, date/time

Question 16

What datatype would currency be?

Answer 16

Real

Question 17

What datatype what house number be?

Answer 17

String

Question 18

What datatype would a telephone number be?

Answer 18

String

Question 19

What datatype would gender be?

Answer 19

Boolean

Question 20

What datatype would a birthday be?

Answer 20

Date/Time

Question 21

What is static data?

Answer 21

Data that remains the same after a refresh

Question 22

What is dynamic data?

Answer 22

Data that can change after a refresh

Question 23

Give an example of static data

Answer 23

CD-ROM/magazines

Question 24

Give a example of dynamic data

Answer 24

A web page on the Internet

Question 25

There is a limited amount of information available. Is this CD-ROM/magazines or the Internet?

Answer 25

CD-ROM/magazines

Question 26

It does not require Internet access. Is this CD-ROM/magazines or the Internet

Answer 26

CD-ROM/the Internet

Question 27

Can access it through a mobile phone. Is this CD-ROM/magazines or the Internet?

Answer 27

The Internet

Question 28

What is direct data?

Answer 28

Data collected by yourself straight from the source

Question 29

What is indirect data?

Answer 29

Data that is collected by somebody else or collected for a different purpose

Question 30

Give two advantages of collecting direct data

Answer 30

The source is known/verified and the data can be collected in response to answers

Question 31

Give a disadvantage of direct data

Answer 31

The data may not be available at that location or time

Question 32

Give advantages of indirect data

Answer 32

A large range of data available and it is ready from different locations and time periods

Question 33

Name two disadvantages of indirect data

Answer 33

It may be bias and you don't know that the data recorded was accurate

Question 34

What are the six factors for quality of information?

Answer 34

Completeness, Age, relevance, presentation, accuracy, level of detail

Question 35

What URL stand for?

Answer 35

Uniform resource locators

Question 36

What is encoding?

Answer 36

Transforming data from one format into another

Question 37

What is the pseudonym for the advantages of an coding data?

Answer 37

``` DLOSS Data validation Less memory Organised Security Speed of input ```

Question 38

Name 2 disadvantages of encoding data?

Answer 38

Run out of codes | Data not as precise

Question 39

What does validation ensure?

Answer 39

That the date is responsible, sensible and within the boundaries of defined rules

Question 40

Name seven of validation checks

Answer 40

Range check, type check, presence check, length check, look up validation, picture check and check digit

Question 41

What is check digit?

Answer 41

A complex calculation which is then compared to the last digit

Question 42

Validation cannot ensure the accuracy of data entered. True or false?

Answer 42

True

Question 43

What is computer verification aka?

Answer 43

Double entry

Question 44

What is manual verification aka?

Answer 44

Proofreading

Question 45

What are the two main verification errors?

Answer 45

Transcription and transposition

Question 46

What is a backup?

Answer 46

A copy

Question 47

What is archiving data?

Answer 47

Moving data to an external source for long term future use

Question 48

What are the four costs of producing information?

Answer 48

Hardware, software, consumables, personnel

Question 49

What is the iPos system?

Answer 49

Input, processing, output, storage

Question 50

In IPOS system, what kind of document does feedback make it

Answer 50

Turnaround document