Software systems

Question 1

What is special about safety critical systems

Answer 1

They are not allowed to fail

Question 2

What are the three things that might occur if a safety critical system fails

Answer 2

1. Death or injury
2. Loss or severe damage to company assets
3. Damage to the environment or wildlife

Question 3

One negative and one positive aspect of automation of process that humans currently run

Answer 3

Negative: There are less jobs available for humans
Positive: Automation still needs workers to preside over it since errors can occur that the system can’t fix

Question 4

What do search engines provide

Answer 4

Multiple ways for users to find information quickly when searching anywhere on the web

Question 5

Describe the system search engines use to search.

Answer 5

They take key words entered by the user, and create a list of websites containing those key words

Question 6

What system do modern search engines use

Answer 6

They use a complex indexing and ranking system to find the most relevant websites to you, so that the top of the list is the most useful

Question 7

What do Automated bots called web spiders do

Answer 7

They collect information about webpages, which is to be indexed and then used by search engines

Question 8

What is PageRank algorithm

Answer 8

It is a method of generating a rank order for the websites found in response to users’ searches.

Question 9

How does PageRank algorithm work

Answer 9

It counts the number of links to a page from other websites, which gives it a rough estimate of how important a website is

Question 10

What is contemporary application(app) software

Answer 10

It is an app that allows users to carry out specific tasks, such as sending and receiving email

Question 11

What is presentation software

Answer 11

It is software that allows users to create presentations to convey information, usually used while a speaker is talking to an audience

Question 12

What is desktop publishing

Answer 12

It is software that allows for the creation of many different types of publication, such as manuals, posters and banners.

Question 13

What can spreadsheet packages be used for

Answer 13

They can be used for dealing with numbers and financial information, They can be used to store simple databases

Question 14

What is one spreadsheet known as

Answer 14

A WorkBook

Question 15

WorkBooks contain multiple …

Answer 15

WorkSheets

Question 16

What are the two types of Drawing packages

Answer 16

Bitmap and Vector

Question 17

What are Vector Images made of, and defined by

Answer 17

They are made of lines and shapes, this means that they are mathematical defined.

Question 18

What are vector images most often used for

Answer 18

Publications of diagrams, such as flowcharts

Question 19

What are bitmap images

Answer 19

They are thousands of coloured dots known as pixels.

Question 20

What are Bitmap images most often used for

Answer 20

High Definition photos and complex artwork

Question 21

What is a database and what is it made up of

Answer 21

It is a structure in which data is organized into tables, field and records

Question 22

What is one key feature of databases

Answer 22

The ability to search and sort data quickly

Question 23

What makes mobile phones apps different to desktop apps

Answer 23

Mobile phone apps tend to focus on completing smaller more specific tasks.

Question 24

What limits the functions of mobile phone apps

Answer 24

The screen space and the processing power of the device itself

Question 25

What is an Expert System

Answer 25

A computer program that uses AI to simulate the judgment and behavior of a human that has expertise in a particular field.