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MAC Address
Stands for "Media Access Control Address," and no, it is not related Apple Macintosh computers. A MAC address is a hardware identification number that uniquely identifies each device on a network. The MAC address is manufactured into every network card, such as an Ethernet card or Wi-Fi card, and therefore cannot be changed.

Because there are millions of networkable devices in existence, and each device needs to have a unique MAC address, there must be a very wide range of possible addresses. For this reason, MAC addresses are made up of six two-digit hexadecimal numbers, separated by colons. For example, an Ethernet card may have a MAC address of 00:0d:83:b1:c0:8e. Fortunately, you do not need to know this address, since it is automatically recognized by most networks.

MAC OS
This is the operating system that runs on Macintosh computers. It is pronounced, "mack-oh-es." The Mac OS has been around since the first Macintosh was introduced in 1984. Since then, it has been continually updated and many new features have been added to it. Each major OS release is signified by a new number (i.e. Mac OS 8, Mac OS 9).

Since the core of the Mac OS was nearly decades old, Apple decided to completely revamp the operating system. In March of 2001, Apple introduced a completely new version of the Mac OS that was written from the ground up. The company dubbed it "Mac OS X," correctly pronounced "Mac OS 10." Unlike earlier versions of the Mac OS, Mac OS X is based on the same kernel as Unix and has many advanced administrative features and utilities. Though the operating system is much more advanced than earlier versions of the Mac OS, it still has the same ease-of-use that people have come to expect from Apple software.

Machine Language
The central processing unit (CPU) is the brains behind your computer. The CPU is responsible for performing calculations and tasks that make programs work. The higher the speed of a CPU, the faster the CPU undertakes the calculations and tasks.

Machine Learning
Machine learning, commonly abbreviated "ML," is a type of artificial intelligence (AI) that "learns" or adapts over time. Instead of following static rules coded in a program, ML technology identifies input patterns and contains algorithms that evolve over time.

Machine learning has a wide variety of applications, many of which are now part of everyday life. Below are a few examples:

  1. Medical diagnoses
  2. Autonomous vehicles
  3. Online ad targeting – Google AdSense and Facebook Advertising
  4. Speech recognition – Google Assistant, Amazon Alexa, Microsoft Cortana, and Apple Siri
  5. Image recognition – Google image search, facial recognition on Facebook and in Apple Photos


Self-Driving Vehicle Example

Autonomous vehicles incorporate machine learning to improve their safety and reliability. A self-driving car that uses traditional artificial intelligence can respond to any road conditions it has been programmed to handle. However, if the software encounters unrecognized input, the car may default to a backup safety measure, such as slowing down, stopping, or requiring a manual override.

Machine learning can enable a vehicle to recognize events and objects that have not been explicitly programmed in the source code. For example, a car may be programmed to recognize street lights, but not flashing lights on construction barricades. By learning from experience — possibly recording the driving behavior of a human driver — the car will start to recognize construction barriers and respond accordingly.

ML technology is what enables autonomous vehicles to differentiate between objects on the road, such as cars, bikes, humans, and animals. It also helps automobiles drive more reliably in imperfect weather conditions and on roads without clear lines. The goal is to enable vehicles to drive like humans while avoiding mistakes caused by human error.

Macintosh
Macintosh is a line of desktop and laptop computers developed by Apple. Each Macintosh computer, or Mac, runs a version of the Mac OS, Apple's desktop operating system. Since 2001, all Macs have run Mac OS X, a redesigned version of the original Mac OS that was built from the NeXTSTEP operating system.

The original Macintosh, released in 1984, was the first personal computer to have a graphical user interface, or GUI. It was in all-in-one machine with a color display and included a mouse and a keyboard. Over the past several decades, Apple has released many new types of Macintosh computers, including all-in-one models, system units (which do not include a monitor), and portable computers.

The current Macintosh line (as of early 2012) includes the following models:

  1. Mac Pro - a professional desktop computer sold as a system unit
  2. iMac - an all-in-one desktop computer aimed at home and pro users
  3. Mac mini - a small desktop computer designed for home and server purposes – Google AdSense and Facebook Advertising
  4. MacBook Pro - a portable computer aimed towards students and pro users – Google Assistant, Amazon Alexa, Microsoft Cortana, and Apple Siri
  5. MacBook Air - a lightweight portable computer designed for travelers – Google image search, facial recognition on Facebook and in Apple Photos


NOTE: While Macs are technically personal computers (PCs), the term PC is often used to describe computers that run Windows or Linux. Therefore, Macs are often referred to as personal computers, but not PCs. Unlike PCs, which are manufactured by several different companies, Apple designs and manufactures all Macintosh computers.

Macro<

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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
    2. - Windows XP Keyboard Shortcuts

  2. A Small Program

    3. 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.

    Mail Server
    JA measure of computer processor storage and real and virtual memory. A megabyte (Mb) is 2 to the 20th power bytes, or 1,048,576 bytes in decimal notation.A mail server (or email server) is a computer system that sends and receives email. In many cases, web servers and mail servers are combined in a single machine. However, large ISPs and public email services (such as Gmail and Hotmail) may use dedicated hardware for sending and receiving email.

    In order for a computer system to function as a mail server, it must include mail server software. This software allows the system administrator to create and manage email accounts for any domains hosted on the server. For example, if the server hosts the domain name "techterms.com," it can provide email accounts ending in "@techterms.com."

    Mail servers send and receive email using standard email protocols. For example, the SMTP protocol sends messages and handles outgoing mail requests. The IMAP and POP3 protocols receive messages and are used to process incoming mail. When you log on to a mail server using a webmail interface or email client, these protocols handle all the connections behind the scenes.

    Mail server software is available for multiple platforms. The most popular mail server for Windows is Microsoft Exchange Server, an enterprise product used by large businesses. However, many other options exist, including Ipswitch IMail Server, IceWarp Mail Server, MailEnable, and hMailServer. Popular Linux options include Exim for sending mail and Dovecot and Courier for receiving mail.

    Malware
    "Malware" is short for malicious software. It refers to a software program that has been developed to do harm to other computers. Types of malware include viruses, worms and spyware.

    Megabyte
    1,048,576 bytes or 1,024 kilobytes; enough storage to approximately equal a 600 page paperback book; generally abbreviated Mb

    Megahertz
    Megahertz is the unit used to measure the speed of a computer's processor (e.g. 2.8Ghz)

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