Computers for individuals

Most computers are meant to be used by only one person at a time. Such computers are often shared by several people (such as those in your school’s computer lab), but only one user can work with the machine at any given moment.

The six primary types of computers in this category are

• Desktop computers
• Workstations
• Notebook computers
• Tablet computers
• Handheld computers
• Smart phones

These systems are all examples of personal computers (PCs)—a term that refers to any computer system that is designed for use by a single person. Personal computers are also called microcomputer, because they are among the smallest computers created for people to use. Note, however, that the term personal computer or PC is most often used to describe desktop computers.

Desktop Computers

The most common type of personal computer is the desktop computer—a PC that is designed to sit on (or under) a desk or table.

Workstations

A workstation is a specialized; single-user computer that typically has more power and features than a standard desktop PC. These machines are popular among scientists, engineers, and animators who need a system with greater-than-average speed and the power to perform sophisticated tasks. Workstations often have large, High-resolution monitors and accelerated graphics handling capabilities, making them suitable for advanced architectural or engineering design, modeling, animation, and video editing.

Notebook Computers

Notebook computers, as their name implies, approximate the shape of an 8.5-by-ll-inch notebook and easily fit inside a briefcase. Because people frequently set these devices on their lap, they are also called laptop computers. Notebook computers can operate on alternating current or special batteries. Because of their portability, notebook PCs fall into a category of devices called mobile computers—systems small enough to be carried by their user.

Tablet PCs -The tablet PC is the newest development in portable, full-featured computers. Tablet PCs offer all the functionality of a notebook PC, but they are lighter and can accept input from a special pen called a stylus or a digital pen—that is used to tap or write directly on the screen.

Handheld PCs

Handheld personal computers are computing devices small enough to fit in your hand. A popular type of handheld computer is the personal digital assistant (PDA). A PDA is no larger than a small appointment book and is normally used for special applications, such as taking notes, displaying telephone numbers and addresses, and keeping track of dates or agendas. Many PDAs can be connected to larger computers to exchange data.

Smart Phones

These phones offer advanced features not typically found in cellular phones, they are sometimes called smart phones. These features can include Web and c-mail access, special software such as personal organizers, or special hardware such as digital cameras or music players.