Carries out the same function as a computer but is designed to be light and portable so can be carried around.
similar to a laptop but even more compact
similar to a notebook but designed to be used for wireless communication usually cheaper with lower specification.
Personal Digital Assistant PDA
small enough to be held in the palm of your hand usually contains an address book, note making features, telephone and internet features.
Input: Whatever goes into the computer. Input can take a variety of forms, from commands you enter from the keyboard to data from another computer or device. A device that feeds data into a computer, such as a keyboard or mouse, is called an input device. Output: Anything that comes out of a computer. Output can be meaningful information or gibberish, and it can appear in a variety of forms -as binary numbers, as characters, as pictures, and as printed pages. Output devices include display screens, loudspeakers, and printers.
Optical storage is any storage method in which data is written and read with a laser for archival or backup purposes. Typically, data is written to optical media, such as CDs and DVDs. For several years, proponents have spoken of optical storage as a near-future replacement for both hard drives in personal computers and tape backup in mass storage.
A device utilizing magnetic properties of materials to store data; may be roughly divided into two categories, moving (drum, disk, tape) and static (core, thin film). This is also known as magnetic memory.
Solid state, at its most basic level, means "no moving parts." Therefore, solid state electronic devices are made up of solid components that do not move. Some examples include computer motherboards and integrated circuits. Devices that use only solid state parts, such as television sets, speakers, and digital watches, are often referred to as solid state products.