There are several types of computers including supercomputers, mainframes, servers, laptops, desktops, and mobile devices. Supercomputers can perform calculations at the highest speeds but are used for scientific applications. Mainframes can support hundreds of users simultaneously and are more powerful than supercomputers for multiple programs. Servers are dedicated devices that store files for network users. Laptops and mobile devices are portable while desktops remain in one location connected to a power outlet.

1. TYPES OF COMPUTER
http://www.igcseict.info/theory/1/types/files/stacks_image_
1001.png

2. SUPERCOMPUTER:
• A supercomputer is a computer that performs at or near the currently highest operational rate for
computers. A supercomputer is typically used for scientific and engineering applications. At any
given time, there are usually a few well-publicized supercomputers that operate at extremely high
speeds. Often they have specific hardware to handle large amounts of floating point operations or
vector operations.

3. MAINFRAME:
• A very large and expensive computer capable of supporting hundreds, or even thousands, of
users simultaneously. Mainframes are more powerful than supercomputers because they support
more simultaneous programs. But supercomputers can execute a single program faster than a
mainframe. This type of computer monolith can carry environmental and other support
requirements.

4. SERVER:
• A computer and storage device dedicated to storing files. Any user on the network can store files
on the server. Servers are often dedicated. They perform no other tasks besides their server
tasks.
http://www.pclink.co/acatalog/Dell_Rack_Server.jpg

5. LAPTOP:
• Anportable computer, usually battery-powered, small enough to rest on the user's lap and having
a screen that closes over the keyboard like a lid. Some laptops are very powerful. Laptop
computers have an L-shape design and the screen can be lowered and closed to allow for easy
transportation of the machine. A laptop is a type of personal computer that stands out for its
mobility.
http://famsa_imagenes.storage.googleapis.com/14558102
4X551CAMM2BLK.jpg

6. DESKTOP:
• A desktop computer is a computer that is designed to stay in a single location. Desktop computers
cannot be powered from an internal battery and therefore must remain connected to a wall outlet.
In the early age of computers, desktop computers were the only personal computers available.
opposed to a laptop whose rechargeable battery and compact dimensions allow it to be regularly
carried and used in different locations.
http://www.lcjapan.com/hw/desktop.jpg

7. MOBILE DEVICES:
• A mobile device is a handheld tablet or other device that is made for portability, and is therefore
both compact and lightweight. Processing and display technologies have allowed these small
devices to do nearly anything that had previously been traditionally done with larger personal
computers. And they have new data storage. a mobile device can be defined by three distinct
characteristics that set it apart from devices that may appear similar, but lack some characteristics
of true mobile devices.
http://www.rabita.az/uploads/xidmetler/mobile-devices.png

8. EXAMPLES:
• Laptop: Dell, Toshiba.
• Desktop: Just a Reflektor, Diplomatic – Cover
• Mobile devices: !Pad, !Phone 6

9. BIBLIOGRAPHY:
• http://whatis.techtarget.com/definition/supercomputer
• http://www.webopedia.com/TERM/M/mainframe.html
• http://www.webopedia.com/TERM/S/server.html
• http://www.businessdictionary.com/definition/laptop.html
• http://techterms.com/definition/desktop_computer
• http://www.techopedia.com/definition/23586/mobile-device
• http://www.awwwards.com/6-examples-of-desktop-sites-synced-with-mobile-
devices.html