References > Glossary > Terms K - O
| Terms | Definitions |
| Kbit | 1024 bits |
| Kbps | Kilobits per second |
| Kbyte | 1024 bytes |
| LAN | (Local Area Network) Network that are restricted to a small area usually a in a 1000ft area. |
| LED | (Light-Emitting Diode) Semiconductor-based device that displays light when a current passes through it. |
| Leased Line | A permanently connected high speed private telephone line between two locations. |
| Local Bus | Bus system for the PC that operates at 32 bits. |
| MIDI | (Musical Instrument Digital Interface) A standard that allows musical instruments, to be controlled from a computer screen. |
| MIME | (Multipurpose Internet Mail Extensions) A extension e-mail that has the ability to transfer nontextual data, such as audio, graphics, and fax. |
| MIPS | (Million Instructions Per Second) The number of instructions executed by a processor within one second and serves as a basic measure of the performance of a CPU. |
| MPEG | (Motion Picture Experts Group) A standard for digital video and digital video compression. |
| Magneto-Optical Drive | A mass storage unit which the reading and writing of data is done by a laser beam. |
| Mail Gateway | A Computer that connects two or more e-mail systems and sends messages between them. |
| Mail Server | Software and hardware that takes actions based on the address of the message. The software distributes the mail in response to requests. |
| Mainframe | A powerful computer that serves many users can execute several tasks at one time. |
| Mbit | 1,048,576 bits. |
| Mbps | Megabits per second |
| Mbyte | 1,048,576 bytes |
| Megabyte | 1,048,576 bytes of data |
| Megahertz | MHz. One million hertz |
| Mhz | (Megahertz) One million Hertz or 1,000,000 periods per second. The clock speed of a PC is measured in Megahertz |
| Microprocessor | An Electronic circuit used to perform mathematical, logical, control and other functions. |
| Modem | A device used to transmit digital data over analog lines. (Usually telephone lines) |
| Mosaic | The first widely used graphical Web browser. |
| Motherboard | Main circuit board in a PC that houses the main components such as the CPU, and main memory. |
| Multimedia | Generic term for applications and hardware using a wide variety of media, such as audio, text, graphics and video. |
| Multiplexer | A device that moves data from several input channels to a smaller number of output channels in a defined manner. |
| Multitasking | The execution of several tasks at the same time by a single computer. |
| Netiquette | A Term used to define proper behavior on the Internet. |
| Noise | A disturbance that tends to interfere with the operation of communication devices. |
| Off-line | The state of a computer that has had its connection to the network severed or a printer that has had its printing terminated. |
| Operating System (OS) | The program that controls a computer's hardware and software |
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