Thursday, 6 October 2011

Different Types of Computer Systems



PC And Base Unit

  • PC is short for personal computer. The first electronic computers were made in the mid 20th Century. 
      A PC is a device that allows u access to the internet , produce  word documents, powerpoint. excel and much more.

  • A base unit is the heart of a PC. 
  • This is were you inser CDs and discs etc.



Laptop

  • A laptop is a personal computer that you can use while travelling for example, an airplane, a bus, a car etc. 
  • A laptop has a screen, a touch pad and a keyboard.




NETBOOK
  • Netbooks are small, light computers.
They are often less expensive than laptops, they have smaller screens and keyboards and do not use as much power.    



       
P.D.A
  • P.D.A means Personal Digital Assistant.
  • It is a mobile used for information managing.
  • They can connect to the internet and web browse.
  • They can also be used as media players.

MOBILE PHONE
  • A mobile phone is a small device that allows you to contact people through voice calls or text messaging.
  • You can also access the internet to socalise, check the news, play music, take photos and watch videos.
  GAMES CONSOLE
A games console is used mainly for entertainment.
  • It consists of images and sounds displayed on a television.
  • The games come in a form of a disc.
  • The games are controlled by the controller by using a joy pad.




                                 TABLET
  • A tablet is a tablet-sized computer that has the features of a full sized PC.
  • It is equipped with a rotatable touch screen as an additional input device.
  • It allows users to perform pen computing tasks.
  •  
SERVER
  • A server is a computer or a number of computers that link other computers or electronic devies together.
  • When you enter a query in a search engine, the query is sent from your computer over the internet to the servers that store all the relevant information. The results are sent back to your PC by the server.

EMBEDDED DEVICES
  • Embedded devices are small chips that can be programmed to execute orders.
  • It is embedded as part of a omplete device often including hardware and mechanical parts.
  • The control panel is an elevator an embedded device.   



 

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