Computer Science
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Latest content Computer Science
A network organised around a few individuals within a range of few metres (eg an office) 
a HAN 
a small network within a home environment that connects to computers, printers or tablets. 
Function of a switch in a HAN 
used to connect computers in a network 
Function of a Router in a HAN 
allows one or more computers or devices to connect to networks such as the internet 
Benefit of a wireless router in HAN 
So that all of your devices can be connected to the same internet device 
Three benefit...
Two man reasons for setting up a network 
To share resources such as hardware, software and information. 
For fast and efficient communication. 
Give three reasons why downloading a file from the internet to your smartphone can be regarded as network activity 
First, you are downloading from the internet to your smartphone. 
Second, the internet is a global network. 
Third, your smartphone is connected wirelessly to the modem. 
Instant messaging is an example of how a network can be used for com...
Application Software 
computer software created to allow the user to perform a specific job or task 
multimedia software 
Application software for creating and editing presentations, animations, and video. 
Eg: interactive multimedia textbooks 
Communications software 
Is used to make electronic communications simpler and efficient 
, gmail, Skype 
Compatibility issues 
-Every company has a different way of encoding the formatting data in their files. 
-New versions of the software introduce new...
World Wide Web(WWW or the Web) 
-is an interconnected system of public webpages, accesible through the internet 
IP Adress 
is a numerical address that uniquely identifies 
a device on the internet or local networks 
Webpage 
Is a single document on the internet,under a unique URl 
Website 
a collection of related web pages; can contain images, video, or other digital formats thats linked together under a domain address 
Hyperlink 
is a word, phrase, or image that you can click on to jump to a n...
Software - set of instructions that tells computer what to do 
 
Types of software - Application Software 
System Software 
 
System Software - helps run the computer 
Coordinates instructions between application software and hardware 
Includes : Operating Software and Utility Programs 
 
Application Software - Programs used to do specific tasks 
 
Web Based Applications - SaaS Software as a Service 
Application is hosted online 
 
Productivity Software - word processing 
Presentation 
Spreadsh...
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