A hand-held computer.
Personal computer. Generally refers to computers running Windows with a Pentium processor.
Printed Circuit board. A board printed or etched with a circuit and processors. Power supplies, information storage devices, or changers are attached.
Personal Digital Assistant. A hand-held computer that can store daily appointments, phone numbers, addresses, and other important information. Most PDAs link to a desktop or laptop computer to download or upload information.
Portable Document Format. A format presented by Adobe Acrobat that allows documents to be shared over a variety of operating systems. Documents can contain words and pictures and be formatted to have electronic links to other parts of the document or to places on the web.
Intel's fifth generation of sophisticated high-speed microprocessors. Pentium means .the fifth element..
Any external device attached to a computer to enhance operation. Examples include external hard drive, scanner, printer, speakers, keyboard, mouse, trackball, stylus and tablet, and joystick.
A single-user computer containing a central processing unit (CPU) and one or more memory circuits.
A measure of memory or storage capacity and is approximately a thousand terabytes.
A theoretical measure of a computer's speed and can be expressed as a thousand-trillion floating-point operations per second.
The operating system, such as UNIX., Macintosh., Windows., on which a computer is based.
Computer hardware or peripherals that come set up with necessary software so that when attached to a computer, they are .recognized. by the computer and are ready to use.
A menu window that opens vertically or horizontally on-screen to display context-related options. Also called drop-down menu or pull-down menu.
A competitor of the Pentium chip. It is a new generation of powerful sophisticated microprocessors produced from an Apple-IBM-Motorola alliance.
A mechanical device for printing a computer's output on paper. There are three major types of printers: Dot matrix: creates individual letters, made up of a series of tiny ink dots, by punching a ribbon with the ends of tiny wires. (This type of printer is most often used in industrial settings, such as direct mail for labeling.)
A precise series of instructions written in a computer language that tells the computer what to do and how to do it. Programs are also called .software. or .applications.
A series of instructions written by a programmer according to a given set of rules or conventions (.syntax.). High-level programming languages are independent of the device on which the application (or program) will eventually run; low-level languages are specific to each program or platform. Programming language instructions are converted into programs in language specific to a particular machine or operating system (.machine language.) so that the computer can interpret and carry out the instructions. Some common programming languages are BASIC, C, C++, dBASE, FORTRAN, and Perl.
An input device, like a mouse. It has a magnifying glass with crosshairs on the front of it that allows the operator to position it precisely when tracing a drawing for use with CAD-CAM software.
A menu window that opens vertically on-screen to display context-related options. Also called drop-down menu or pop-up menu.
Internet tool that delivers specific information directly to a user's desktop, eliminating the need to surf for it.
PointCast, which delivers news in user-defined categories, is a popular example of this technology.
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