Analysing

Question 1

What is analysing?

Answer 1

The process by which data can be represented and summarised so that humans can better understand it

Question 2

What is primary storage?

Answer 2

Primary storage is the only storage directly accessible to its CPU. Primary storage is temporary and is usually RAM

Question 3

What is secondary storage?

Answer 3

Secondary storage is not directly accessible by the CPU and is usually permanent storage and is usually a hard disk.

Question 4

What are some characteristics of RAM

Answer 4

A form of temporary computer data storage
Its memory is volatile which means it loses all memory when switched off
Operates at far greater speeds than secondary storage
Holds software and the data used by CPU during processing

Question 5

What are some characteristics of hard disks?

Answer 5

A form of permanent computer data storage
Does not lose the data when the device is powered down
Having multiple platters increases the amount of data that can be stored
Data is stored on the surface of the platter in sectors and tracks

Question 6

What are some characteristics of CPU?

Answer 6

Is the portion of a computer system that carries out the instructions of a computer program, to perform the basis arithmetical. logical, and input/output operations of the system
Is responsible for processing data and instruction at high speed
Performance is determined by number of bits that can be processed simultaneously, speed at which instructions are executed, nature of instructions

Question 7

What software features are used for analysing?

Answer 7

Searching/selecting data
Sorting
Modelling/simulations
What-if scenarios
Charts and graphs to identify trends
File comparison

Question 8

What is the purpose of a model?

Answer 8

Allowing to establish an understanding of an object

Question 9

What is the purpose of a simulation?

Answer 9

Test a model to predict how the real object would react under different conditions

Question 10

What are some non-computer tools for analysing?

Answer 10

Searching manual file systems

Non computer models and simulations

Question 11

What are the social and ethical issues related to analysing?

Answer 11

Unauthorised analysis of data
Data incorrectly analysed
Erosion of privacy from linking databases for analysis