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Thursday 27 October 2011

Software!!!

Now the software is the part of your computer which you actualy cannot touch. Bit lost? Well an example of software is this blog. You can see it but you cant touch it. Let me tell you about some other things about software.

Systems software--
System software is the software that helps run and organize your computers hardware.
It incudes common features like-
The operating system, Device drivers, File managers, Graphical User Interface (GUI), Command Line Interface (CLI), system utilities etc ...






Application Software--
Application software is used in conjunction with the operating system of a computer in order to do a specific task .
Common types of application software include things like office software, educational software, business & industrial software, communication software, games and specialist. (specialist includes things like speech recognition.)








Office Applications--
Office applications are.. well obviously they are applications which are mainly used in an office. They are the applications like-
Word Procesing- word processing is an application software which allows users to type up anything they want by using their keyboard. It can also be edited with colour, font sizes and images. It is also able to be printed.
Spreadsheets- Spreadsheets are a part of the software called excel. They are used to make lists of information and charts. You are able to use functions for calculations with Spreadsheets.
Games Software- Games software is the software which has the programming needed for games. It allows you to create and play games.

Communications software--

Communications software is an online software. It is the sotware like web browsers and emails.
Web browser is a communication software as with web browsing you are able to use social networking, online shopping etc.
Email is a communication software as you are able to communicate by messaging.






Software Utility--
The software utility is an application which will help you to analyse, configurite and optimize the main parts of your computer.



Clean up Tool--
There is also the clean up tool for your computer. It is used to remove files that are created when searching on the internet e.g. removes cookies, the history and much much more. Your clean up tools will remove data so that you can free up some more space, meaning your computer is faster.
It is importat to have this tool.

Thursday 20 October 2011

Hardware Components!

Processor--
The central Proceesing Unit of the computer is the part of the computer which interprets and executes instructions. It is sort of like the brain of your computer.
The speed of the processor really does depend on its age. Newer models of processors have more advanced technolachy making them faster and stronger.
The speed can also depnd on how much data has been absorbed into the computer e.g. douments. This is because whenever you have a lot of files on your coomputer, it may take longer for all of them to be precessed and load up onto your computer.






Memory--
The memory of the computer (also can be known as RAM- Random Access Memory) is your part of the computer which stores all of files. It holds all your documents, your internet browser, your games etc.

Your computer will come with a built in RAM enabling you to save all of your work but if you run out of room, you are then able to buy additional RAM packages from computer shops or online.
Just like the human mind, if you did not have memory on your computer, it would not be able to save any of your files for you to use at a later date. It is an extremely important part of the computer.

Devices for a Network Connection

You will need devices in order for you to get a network connection! Some of the devices are listen Below!



3G/4G--
3G is the ‘3rd Generation’ technology for mobiles. It enhances internet speed that enables you to enjoy myriad features like video calling, faster audio and video streaming, quicker downloads, live TV and a superior social networking experience.

4G provides the additional advantages of data transfer. 4G uses superior software called High Speed Downlink Packet Access (HSDPA), whic


h allows users to send any kind of data, including graphics, audio and video content, many times faster than current 3G networks.






Bluetooth - Wireless--
Bluetooth is a specification for the use of low power communication tehnolachy which allows mobile phones, headsets, computers. etc to connect wirelessly. ( only over short distances)

Bluetooth was created and designed primarily to support small network connections of personnal consumer devices, including mobile phones and head sets. Bluetooth can usually work wirelessly for up to about 10 metres but some devices have a built in software which can increase the range by a few metres.




Network Interface Cards--
A network interface card (NIC) is a card inside the computer when connected to a modem via network cables enables the computer to connect to the internet. A network interface card (NIC) is a card inside the computer when connected to a modem via network cables enables the computer to connect to the internet. It can also be used to connect several computers to a network via a router.  People would more than likely to use this on Lan houses which is a place where allows people to go and acess to the internet. so instead of having so many routers they could just have the network interface card which would allow them to use one router for all the computers to give them all internet access.an also be used to connect several computers to a network via a router.  People would more than likely to use this on Lan houses which is a place where allows people to go and acess to the internet. so instead of having so many routers they could just have the network interface card which would allow them to use one router for all the computers to give them all internet access.



 

Friday 14 October 2011

Computer System Data Flow Diagram

Storage Devices

Yes so you now want to save all your information and documents? Well your going to need storage devices for your main storage, travelling and ofcourse backup :) lets take a peek at what we have..!



Hard Disk Drive-
So what is a hard disk drive? A hard disk drive is the main (usually the largest) data storage device for your computer. Most files in your computer will be saved in this e.g. documents, presentations, photos and images etc.
They can also be known as a HDD (abbreviation), hard drive, hard disk, fixed drive, fixed disk, fixed disk drive.







Memory Stick and/or Flash Drive-
Now you propuarly know what a Memory Stick is? It is a small device, which you are able to hold in e.g. your phone. Mainly used in phones in order to store more files like music.
A flash drive is mostly known for being called a USB stick.
 Mainly used by teachers and students in order to bring your work home or to a different class room. 
They can come in many different GB sizes like 2GB or 4GB. Extremially useful if going on a long journey and can store any type of file e.g. PNG, JPEG, Music, Movies etc.



CD ROM-



A CD ROM is used to store Audio files e.g. songs. They used to be extremially popualr but have now strated becoming less and less common due to things like Mp3s and Ipods. Used mainly in cars now for people to listen to music while driving.



 

Thursday 13 October 2011

Output Devices

Output devices are extremially important :O Without them, you wouldnt be able to look at what your doing, hear any of the noises the computer is maing or .. well you get the point.. They Are Important!




Printer-


A printer is basically a output device that prints out information from your computer when you request it. There is a few different types of Printers like the Dot Matrix and the Laser Printer.








Monitor-
Monitors are the part of the computer where you can actualy look at what you are doing. Without the monitor you wouldn't be able to check for mistakes or look at your work. It is one of the most important parts of the computer. They come in many different sizes and shapes.








Speakers-
A speaker is an output device which allows you to output sound through your computer. Sometimes they come built in to your computer and/or laptop but can also be bought seperately if you prefer to have surrond sound etc. Can be expensive but can also get cheap versions.