Technology [L-N]
Mailman
A web-based list management system.
MB (megabyte)
1,048,576 bytes, often generically applied to 1,000,000 bytes as well.
Mbps (megabits per second)
A measurement of data transmission speed in a communication system; the number of megabits transmitted or received each second.
Metadata
Information about content that enables it to be stored in and retrieved from a database.
Metatag
An HTML tag identifying the contents of a web site. Information commonly found in the metatag includes copyright info, key words for search engines, and formatting descriptions of the page.
MITCET (MIT Council on Educational Technology)
MIT's Council on Educational Technology provides strategic guidance, coordination, and assessment for MIT's educational technology initiatives.
Modular
E-learning that's made up of standardized units that can be separated from each other and rearranged or reused.
MOO (Mud, Object Oriented)
A MUD created with an object-oriented programming language.
MP3
A format for music file compression that enables users to download music over the Internet.
MPEG (Moving Picture Experts Group)
A series of International Organization for Standardization (ISO) standards for digital video and audio, designed for different uses and data rates.
- MPEG-1: a standard designed to allow for playback of video on CD. VCDs are encoded with MPEG-1. This format has dimensions of 352x240 pixels, and is sometimes considered comparable to VHS in quality. The bit rate of a standard MPEG1 is 1.5Mbps. Included in MPEG-1 is a popular standard for audio called MP3 (MP3 is technically MPEG-1 layer 3)
- MPEG-2: the standard for DVD video. Supports higher data rates than MPEG-1.
- MPEG-7: an emerging standard for describing multimedia objects so that they can be accessed in a database. MPEG-7 will allow users to access video based on elements such as instances of a particular color or shape.
MUD (Multi-User Dimension or Multi-User Domain)
A simulated virtual world in which users interact with each other, often by taking on character identities called avatars. Originally created for game-playing, MUDs are growing in popularity for online learning and virtual community-building.
Multicasting
The transmission of information to more than one recipient. For example, sending an e-mail message to a list of people. Teleconferencing and videoconferencing can also use multicasting.
Multimedia
Encompasses interactive text, images, sound, and color. Multimedia can be anything from a simple PowerPoint slide slow to a complex interactive simulation.
Narrowband
1) In data transmission, a limited range of frequencies.
2) More specifically, a network in which data transmission speeds range from 50 Bps to 64 Kbps. See also Broadband.
Navigation
Finding your way from page to page on the World Wide Web.
Net
Common nickname for the Internet.
Netiquette
Online manners; the rules of conduct for online or internet users.
Netscape Navigator
Browser software that enables users to view web pages.
Network
Two or more computers that are connected so users can share files and devices (for example, printers, servers, and storage devices).
Newsgroup
An online discussion hosted on the Usenet network. Sometimes also called a forum.
NTSC (National Television System Committee)
The video input signal formats used in North America and Japan. Full-sized NTSC has a display rate of 60 fields per second (30 interlaced fps), and 525 total lines (480 visible) per frame.
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