PC
PC: A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations
Laptop
Laptop, a laptop is a compact computer; it is a smaller version with all the same equipment as a computer. A laptop is just a portable computer.
Net book, A net book is basically the same as a laptop but smaller again it has all the same equipment as a computer and a laptop.
A PDA (Personal Digital Assistant) is a computer that fits in one’s hand. These small computers are sometimes called palmtops and are a great way to store telephone numbers and email addresses, access the Internet, make calculations, keep a digital calendar, and play games
Mobile Phone
Mobile phone Mobile phones connect to a wireless communications network through radio wave or satellite transmissions. Most mobile phones provide voice communications, Short Message Service (SMS), Multimedia Message Service (MMS), and newer phones may also provide Internet services such as Web browsing and e-mail.
A games console is an interactive entertainment computer or modified computer system that produces a video display signal which can be used with a display device (a television) to display a video game.
Tablet
It's a flat-panel portable PC in the form of a slate. A user inputs data either by tapping the screen with a stylus, or using the stylus to write directly on to the screen. The tablet PC can wirelessly connect to the Internet and other PCs and is intended to provide the power of a notebook in hand-held form.
Server
A server is a bigger version of the computer hard drive. This is every website in the world is stored, every big origination has a sever. If the server crashes or stops for some reason this means that no one would be able to access the website.
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