Simple to carry around Essay Example for Free

Simple to carry around EssaySuper computers argon the fastest computers and the most valuable computer in the world these are at least 100 millions pounds. They are mainly employ for superior scientific investigations, weather forecasting or advanced engineering applications Mainframe computers can command massive amounts of data and are capable of processing them. Large utility companies such as natural gas suppliers and banks etc would these computers to save masses of data in it.Minicomputers are used by smaller businesses to handle their data processing or to run something similar to a city traffic control system. Desktop computers would naturally be supplied with the computer itself (complete with hard disk drive and floppy disk drive) and peripherals such as a privacy, a creep, a keyboard and a CD or DVD drive. These are comparatively cheap and unprovoked to add development cards to. The only disadvantage is that it takes up lots of space and is not comfortably m oved.Notebooks (Laptops) These are little, light and simple to carry around. You open it by his hinges and has a screen on its inside, keyboard and mouse controls. These are really expensive because of their processing power and you cannot use standard expansion cards. Keyboards and screens not as good for extended usage. They are designed to run on rechargeable batteries or the mains and can determine many of the description available on a desktop computer.Touch pads or a pushing are commonly used to control the screen pointer. These are also portable due to their sizing and ability to run on batteries Palm-tops PDAs (personal digital assistants) These are very portable, small hand-held computers. They are usually supplied with software such as a diary, a contacts database, and some form of word processor. Many promptly have email facilities and even spreadsheets and databases. They either use a little keyboard or a touch-sensitive screen and writing recognition software.They can be linked to larger computers straight by cable or through a docking station or using an infrared link. These are relatively expensive, peculiar(a) expansion non-keyboard versions can be slow to input data. Embedded computers have a vast add together of modern devices contain some figure of built-in computer. Examples include washing machines camera, hi-fi systems telephones microwave ovens missiles. The inputs are usually sensors so a keyboard may not be needed. The outputs are usually simple displays or motors and relays to control something.