Macintosh Client:-

Any Macintosh computer attached to a network. A Macintosh client can store and retrieve information from a Netware server running NetWare for Macintosh modules and can run executable Macintosh network files.

Mail-aware Application:-

Any application with the ability to send and receive e-mail. Applications in the document management, groupware, and workflow categories all use e-mail to interconnect users and help with the flow of information. This integration of e-mail is made possible in part by API's such as Microsoft's Messaging API, and Novell's Message Handling Service. It's sometimes known as a message-enabled application.

Mailbox:-

In e-mail system, an area of hard-disk space used to store e-mail messages until users can access them. An on-screen message often tells users that they have mail.

Male Connector:-

Any cable connector with pins designed to engage the sockets on the female connector.

MAP:-

A Novell NetWare workstation utility that lets users create, view, or change network drive mappings. There are three types of drive mappings:

• Local drive mapping refers to a local hard disk, such as a disk in a workstation.

• Network drive mapping refers to a directory in the NetWare file system.

• Search drive mapping refers to a directory that the DOS operating system will search when requested files are not found in the current directory.

Mean Time between Failures:-

Abbreviated MTBF. The statically derived average length of time for which a system component operates before failing. MTBF is expressed in thousands or tens of thousands of hours, also called power-on-hours or POH.

Mean Time to Repair:-

Abbreviated MTTR. The average length of time that it takes to repair a failed component.

Media Access Control:-

Abbreviated MAC. The lower component of the data-link layer that governs access to the transmission media. The logical link control layer is the upper component of the datalink layer. MAC is used in CSMA/CD and token-ring local-area networks (LANs) as well as in other types of networks.

MNP:-

Abbreviation for Microcom Networking Protocol. A set of communications protocols from Microcom that has become the standard for data compression and error detection and correction. The levels are as follows:

• MNP 1 to 4 : Define hardware error control.

• MNP 5 : Describes a method of data compression that achieves a 2-to-l compression ratio.

• MNP 6 : Describes a communication protocol that begins with V.22 bis modulation, and then switches to V.29 when possible.

• MNP 7 : Describes a method of data compression that achieves a 3-to-l compression ratio.

• MNP 8 : Based on MNP 7, and adds a V.29 technique that lets half-duplex devices operate as full-duplex.

• MNP 9 : Contains a proprietary technique that provides good performance over a wide variety of link types.

• MNP 10 : Describes an extremely rigorous error control protocol, well suited for use on extremely noisy links. MNP 10 has been adopted for use in cellular modems.

Mobile Computing:-

1. The everyday use of a portable or laptop computer as a normal part of the workday.

2. Techniques used to establish links to a network by employees who move from one remove location to another, such as members of a sales staff; once the connection is made, users can access network resources as easily as if they were working from a computer in their office.

Modem:-

Contraction of MODULATOR/ DEMODULATOR, a device that allows a computer to transmit information over a telephone line. The modem translates between the digital signals that the computer uses and analog signals suitable for transmission over telephone lines. When transmitting, the modem modulates the digital data onto n carrier signal on the telephone line. When receiving, the modem performs the reverse process to demodulate the data from the carrier signal. Modems usually operate a speeds ranging from 2400 to 28800 bits per second over standard telephone lines, and at higher rates over leased lines

Mosaic:-

A World Wide Web client program, originally written by the National Center for Supercomputing Applications (NCSA) at the University of Illinois. Mosaic uses a graphical user interface to give access to Internet resources, and allows users to

navigate through hypertext documents quickly and easily using a mouse. Mosaic is available in versions for Windows, UNIX, and the Macintosh operating systems and requires that TCP/IP is installed on the client computer and that a direct connection to the Internet is available.

MOUNT:-

A Novell NetWare server utility used to load a volume onto the server, making the files on the volume available to users and applications. Using MOUNT, you can mount a single volume by name or mount all available volumes simultaneously with the MOUNT ALL command.

Mouse:-

A small input device with one or more buttons used with graphical user interfaces. As the mouse moves, an on-screen mouse cursor follows; all movements are relative. Once the mouse pointer is in the correct position on the screen, you can press one of the mouse buttons to initiate an action or operation.

Different user interfaces and file programs interpret mouse clicks in different ways. A mouse has been standard equipment on the Macintosh family of computers for a long time. With the rising popularity of graphical user interfaces, such as Microsoft Windows, mouse use with DOS systems is becoming common. You can connect a mouse to the computer in one of several ways:

• A bus mouse requires a separate expansion board in the computer.

• A serial mouse plugs into an unused serial port.

• A regular mouse plugs into the mouse port, as with Macintosh and IBM PS/2 computers. A wireless mouse is also available.

Multidrop Line:-

A circuit connecting several stations or nodes on a single logical link also called a multipoint line. A multidrop line is often used in IBM's SNA (System Network Architecture). It is controlled by a primary station, and the other nodes are considered to be secondary.

Multimedia:-

 A computer technology that displays information using a combination of full-motion video, animation, sound, graphics, and text, with a high degree of user interaction.

Multimedia extension:-

A software extension to an operating system that extends an application interface to include time based media, such as music, sound, full-motion video, and animation. Multimedia extensions also include commands for synchronization and device control.

QuickTime is a multimedia extension to Apple's System 7 operating system. MMPM/2 brings multimedia support to IBM's OS/2.

Microsoft includes several multimedia extension device drivers and utilities with Windows 3.1.

Multithreading:-

The concurrent processing of several threads inside the same program. Because several threads can be processed in parallel, one thread does not need to wait for another to finish before it can start.