UNIT 3 COMPUTER SYSTEMS

Harry Eleftheriou

Desktop Computer• A desktop computer is a computer that consists on 1 base unit a monitor

a mouse and a keyboard. It is a like a laptop or netbook but can be a lot more powerful for example the processing and graphics could be better in desktop than a laptop. It connects to other computer either using Ethernet or wirelessly using WIFI connection depending on what you use to access the internet.

Tablet

• A tablet is a smaller version of a computer except its not it uses flash memory, it does not have a hard drive. You can download games and other applications, it can be used as a media device and so me even have cameras on them. It is a mobile device so it is good for when you on the go. It also has touch screen so there is mo need for mouse or keyboard. Tablets are usually used for mobile purposes due to there size so they connect to other computer wirelessly using Wi-Fi or 3G depending whether it supports 3G connection.

Laptop• Laptops are a portable version of a desktop computer, they are battery operated,

and can do just as much as a computer, from word processing to video editing, you can now watch TV from you laptop. They need a battery that will last for a considerable time. Laptops can connect to other computer either using WIFI or Ethernet depending on how you connect to the internet. You can also use mobile broadband the uses 3G connection so you can have internet any where.

Netbook• Netbooks are an even smaller version of a laptop, they do not have much

processing power they are mainly used for going on the internet and can be used for other small applications. There is an upside netbook can have unto 10 hour battery life. Netbooks usually use Wi-Fi to connect to other computers but they also support Ethernet connection depending how you connect to the internet. You can also use mobile broadband so you can internet connect any where.

IPhone• Iphones are very advanced mobile phones. They use touch screen technology,

they can download applications and can be used to read and send emails there is now a face to face service called Facetime also the iPhone has a talk time: Up to 8 hours on 3G, up to 14 hours on 2G (GSM)

Standby time: Up to 200 hours Internet use: Up to 6 hours on 3G, up to 9 hours on Wi-Fi Video playback: Up to 10 hoursAudio playback: Up to 40 hoursIPhones use Wi-Fi and 3G and 4G that has recently come out. So it can use either the Wi-Fi or the 3G or 4G connections to access the internet and connect to other computers. The new Ipad also uses Wi-Fi but now has the new 4G LTE connection which can be as fast as home broadband.

Games Consoles• Games consoles are used for gaming but are also good for

socializing for example when you go online and play against other people. You can also stream movies and connect them to your computer through Wi-Fi and can also be used to even go on the internet and catch up on TV. Games consoles connect to other computers through WIFI ussally but they all have Ethernet connection depending how you connect to the internet.