Dell Latitude D820 Technical Manual

Also see for D820 - Latitude Laptop Notebook: Quick reference guide Quick reference guide Quick reference guide Quick reference guide Service manual

Contents

infrared sensor — A port that allows you to transfer data between the computer and infrared-compatible devices without using a cable connection.integrated — Usually refers to components that are physically located on the computer's systemboard. Also referred to as built-in.I/O — input/output — An operation or device that enters and extracts data from your computer.Keyboards and printers are I/O devices.I/O address — An address in RAM that is associated with a specific device (such as a serialconnector, parallel connector, or expansion slot) and allows the processor to communicate with thatdevice.IrDA — Infrared Data Association — The organization that creates international standards for infraredcommunications.IRQ — interrupt request — An electronic pathway assigned to a specific device so that the device cancommunicate with the processor. Each device connection must be assigned an IRQ. Although twodevices can share the same IRQ assignment, you cannot operate both devices simultaneously.ISP — Internet service provider — A company that allows you to access its host server to connectdirectly to the Internet, send and receive e-mail, and access websites. The ISP typically provides youwith a software package, user name, and access phone numbers for a fee.KKb — kilobit — A unit of data that equals 1024 bits. A measurement of the capacity of memoryintegrated circuits.KB — kilobyte — A unit of data that equals 1024 bytes but is often referred to as 1000 bytes.key combination — A command requiring you to press multiple keys at the same time.kHz — kilohertz — A measurement of frequency that equals 1000 Hz.LLAN — local area network — A computer network covering a small area. A LAN usually is confined toa building or a few nearby buildings. A LAN can be connected to another LAN over any distancethrough telephone lines and radio waves to form a wide area network (WAN).LCD — liquid crystal display — The technology used by portable computer and flat-panel displays.LED — light-emitting diode — An electronic component that emits light to indicate the status of thecomputer.local bus — A data bus that provides a fast throughput for devices to the processor.LPT — line print terminal — The designation for a parallel connection to a printer or other paralleldevice.