The Digital World.

All you need understand the ways of the computer

The Key Parts of a Computer

The parts of a computer are essential for it to work correctly, without them we wouldn't be able t connect to the internet or save important work. These are some of the most important parts of the device:


  • CD/DVD reader
  • Heat sink
  • CPU (central processing unit)
  • Hard drive
  • Power supply
  • RAM (random access memory)
  • Motherboard
  • Expansion slots



CD/DVD Reader.


A CD/DVD reader understands the contents of the disc and helps show it on the screen and makes sure that the what you are listening to or watching appears in the correct order.


Heat Sink.


The heat sink is a part that stops the computer from over-heating when it is working as all of the parts generate heat. Without the heat sink there could be, for example, a fire.


CPU (Central Processing Unit).


The CPU directs the electricity to the part of the system that executes the instructions. The CPU mainly handles stored information which comes up on your computer every time you turn it on such as the picture on your home screen.


Hard Drive and RAM (Random Access Memory).


The hard drive stores permanent memory such as documents you have saved, whereas the RAM stores only temporary memory which is deleted when the computer is turned off. These are things such as the websites you have recently visited.


Power Supply.


The power supply is like a battery, it keeps the computer going and recharges the battery,


Motherboard.


The motherboard links all of the components in the computer and is important in the working of the computer. It enables the whole computer to function properly.


Expansion Slots.


Expansion card go into expansion slots and makes the computer better. A video expansion card improves the graphic performance of videos and a wireless expansion card means that you can connect to the wireless home network.

First Three Apple Products

Look at the difference between the first three Apple products and the latest three.

Latest Three Apple Products

Input, Output and Storage

Input


The input is the instruction given to the computer, for example, a disc going into the DVD/CD reader is the input because you put it into the machine in order to receive the output.


Output


The output is the end result of the input. For example, continuing on from the last part, the disc was put into the computer as the input, the computer was that we receive music from it or a film.


Storage.


Computer storage systems are usually small but have lots of space for information and are portable so you can carry them around easily. A good example of a compatible and portable storage system would be a USB memory stick, you put them in the side of your computer and whatever you save to it stays on there, so when you plug it in again, your saved work appears.

The Home Network

The provider, such as Plusnet, provides the internet service, it is then set through some other places to reach your router which divides the service out. The service provider gives internet access to all of your items that need it.
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The Risks Of Digital Collaboration

When sharing your work you should be careful that you know were it is being sent and exactly who is receiving it. The risks are that your work or pictures could be edited and changed in an unacceptable way or without you knowing. You should also keep your email address private to people that you only know and trust.


Having social media on a public setting could also put you at risk, this means that everyone on it can see a photo you have posted or anything else. Put your account on private and only friend your REAL friends who you also trust with pictures.


Clicking on links can cause viruses which means that it is easier for someone to hack into your device, usernames and passwords can be accessed which means that people can get into your email account, social media and work.

Tim Berners-Lee

Tim Berners-Lee was born on the 8th June 1955 and is the inventor of the constantly used world wide web, or more commonly seen as WWW at the beginning of a web address.


The world wide web was launched in 1989 and was originally made for Scientists and universities only to share important Scientific discoveries and information efficiently. However, since then the WWW has become a world wide phenomenon, not only for Scientists, but for the public to access to and contact their friends and families on a different computer somewhere else.


He is still alive, (age 60) and got remarried in 2014 to Rosemary Leith after a divorce with his his first wife Nancy Carlson who he married 1990 and is his children's (Alice and Ben's) mother.

Charles Babbage

Born on the 26th December 1791, Charles Babbage was one of the first engineers to create a mechanical computer. He is considered to many people to be the 'Father of Computers' and his invention led to many more complex designs