Computer Science Careers
Outside computing
Average pay
Main Jobs
System Security
Employers
Subject links
Key Skills
Companies are targeted constantly by cyber-attacks, it is your responsibility as an employee (especially when self-employed) to avoid viruses and scams.
£32,000 - £12,000
1.MI5
2.HSBC
3.IBM
4.MOD
1.Mathematics
2.Networking
3.Ethics and Law
Understand how to keep your device safe and secure when using the internet.
Further reading - https://www.learnhowtobecome.org/computer-careers/cyber-security/
System Security and Software:
Utility Software
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Utility software
Learning Objective:
Text
Learning outcome:
Text
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iCan()
iCan.Explore()
I show an understanding of the topic by briefly describing my understanding
iCan.Enhance()
I show a good technical understanding and am able to show this through detailed description and evaluation of effectiveness.
iCan.Excel()
I can show an excellent technical understanding of the topic and can give factually correct examples and evidence.
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What is utility software
Utility software is software designed to help to analyze, configure, optimize or maintain a computer.
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Encryption Software
Encryption tools can help to keep sensitive data safe from cyber criminals or unauthorised access.
The encryption process uses an algorithm and key to transform the plaintext into ciphertext.
To decode the original information it would be necessary to know both the algorithm and the key.
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Defragmentation
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The image shows hard drive before defragmentation
Each colour present a single file.
How would you describe this image?
Disk Defragmentation
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Automatic Updates
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Automatic updates help protect your computer from vulnerabilities it might have.
This could be to fix an exploit a hacker might use, improving the OS to run faster or providing new features such as parental controls.
Compression Software
Compression software reduces the size of a file. There are two types of compression – Lossy and Lossless
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Lossy means some quality is lost: images, videos, music etc
Lossless is used when there cannot be a loss in quality:�text files, spreadsheets, databases etc
Why compress?
It reduces the file size, freeing up more space on your secondary storage
It means files can be uploaded and downloaded more quickly over the internet.
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Sometimes there is a limit in file size you can send over the internet. If you have a 15MB photograph and your e-mail attachment limit is 10MB, you will need to compress it.
Application Software
Application software
Application software is commonly defined as any program or number of programs designed for end-users.
Applications are also known as program or apps and allow us as users to run software on our operating system.
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Web browser
Web browsers or simply "browser," are used primarily for displaying and accessing websites on the internet, as well as other content created using languages such as Hypertext Markup Language (HTML)
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NetScape
Internet explorer
Opera
Safari
Firefox
Chrome
Edge
Office based software
Office based software falls into three main categories
Word Processing - the production, storage, and manipulation of text on a computer
Presentation - used to display information in the form of a slide show. It has an editor, a method for inserting and manipulating graphic images, and a slide-show system to display the content.
Spreadsheet - an electronic document in which data is arranged in the rows and columns of a grid and can be manipulated and used in calculations.
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Specialist software
Specialist application software performs a single very specific type of task.
Programs to work out driving routes, create 3D models, allow for video editing are all example of specialist software.
Specialist software covers a large range of application software and has it own sub categories such as graphics, multimedia and database software.
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Entertainment software
Entertainment software is any software that supports a hobby or provides a form of amusement. Entertainment software includes video games, videos and any other software that a user feels is enjoyable.
The Entertainment software industry has become so large that device are developed just to run Entertainment software known as games consoles.
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Programming software
Programming software is a program or set of programs which helps the software developers by assisting them in creating, debugging and maintaining other programs and applications.
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Utility software
While a lot of utility software is built in most operating systems, many other can be downloaded such as:
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