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M

Mac OS

An operating system with a graphical user interface, developed by Apple for Macintosh computers. Current System X.1.(10) combines the traditional Mac interface with a strong underlying UNIX. Operating system for increased performance and stability.


Macintosh

This is the name of the computers that are made by Apple Computer. The first Macintosh was introduced in 1984 and was seen as a major innovation in computing ease-of-use. The Macintosh was the first personal computer to use a graphical user interface (GUI), which allowed the user to interact with the operating system by using a mouse to click and drag objects. Since 1984, Apple has continually revised and upgraded the Macintosh product line and now makes both laptop and desktop versions of the Macintosh. The Macintosh product line includes the following models:

  1. Power Mac - a high-performance desktop computer for professionals
  2. PowerBook - a high-performance laptop computer for professionals.
  3. iMac - a creatively designed consumer desktop computer
  4. iBook - a laptop computer for students and home users
  5. eMac - an all-in-one desktop computer for educators and entry-level consumers
  6. Mac mini - a super-small, fully functional computer sold without a monitor, keyboard, or mouse

Apple also makes other equipment such as displays, MP3 players, and networking hardware, but the Macintosh is the heart and soul of the company. Macintosh computers run the Macintosh operating system, creatively named the "Mac OS."


Macro

Macro has two computer-related definitions, both of which involve making your computer experience more efficient.

1. A Keyboard Shortcut

The term "macro" is often used synonymously with "keyboard shortcut." Keyboard shortcuts are key combinations that perform commands, such as saving a file, closing a window, or copying and pasting data. For a list of keyboard shortcuts available for Mac and Windows, view the pages below:

- Mac OS X Keyboard Shortcuts
- Windows XP Keyboard Shortcuts

2. A Small Program

A macro can also be a small program, or script, that automates common tasks. These scripts are usually run within programs and can often be created by the user. For example, a user might record a macro for Microsoft Word that inserts his entire address when he presses a custom key combination. A Microsoft Excel user might record a macro to format the data in the selected column of a spreadsheet.

While Word and Excel both make it easy to create custom macros, many other programs allow users to create macros as well. However, not all programs refer to the automated commands as macros. For example, Photoshop allows users to record changes made to an image and saves the series of steps as an "action." These actions can then by applied to other images. Regardless of what they are called, macros can save you a lot of time by automating repetitive tasks. If you find yourself doing the same thing over and over again when using a certain program, you may want to simplify the process by recording a macro.


Malware

Short for "malicious software," malware refers to software programs designed to damage or do other unwanted actions on a computer system. In Spanish, "mal" is a prefix that means "bad," making the term "badware," which is a good way to remember it (even if you're not Spanish).

Common examples of malware include viruses, worms, trojan horses, and spyware. Viruses, for example, can cause havoc on a computer's hard drive by deleting files or directory information. Spyware can gather data from a user's system without the user knowing it. This can include anything from the Web pages a user visits to personal information, such as credit card numbers.

It is unfortunate that there are software programmers out there with malicious intent, but it is good to be aware of the fact. You can install anti-virus and anti-spyware utilities on your computer that will seek and destroy the malicious programs they find on your computer. So join the fight against badware and install some protective utilities on your hard drive!


Maple Input

Executable input, usually a mathematical expression, that Maple evaluates.


Maple Output

The result of an executed Maple input command. By default, Maple output is displayed in blue type in 2-D Math notation.


Maple package

A collection of routines or commands that can be used in Maple. Most Maple packages provide a set of commands for a particular mathematical or scientific domain, or field of study.


Mbps

Stands for "Megabits Per Second." One megabit is equal to one million bits or 1,000 kilobits. While "megabit" sounds similar to "megabyte," a megabit is roughly one eighth the size of a megabyte (since there are eight bits in a byte). Mbps is used to measure data transfer speeds of high bandwidth connections, such as Ethernet and cable modems.


Megabyte

A megabyte is 2 to the 20th power, or 1,048,576 bytes.

It can be estimated as 10 to the 6th power, or one million (1,000,000) bytes. A megabyte is 1,024 kilobytes and precedes the gigabyte unit of measurement. Large computer files are typically measured in megabytes. For example, a high-quality JPEG photo from a 6.3 megapixel digital camera takes up about 3MB of space. A four minute CD-quality audio clip takes up about 40MB of space and CDs can hold up to 700MB of space.

For a list of all the different units of measurements, view this Help Center article.

Abbreviation: MB


Megabyte (MB)

Equal to 1,048,576 bytes, usually rounded off to one million bytes (also called a meg).



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