Macro :
A small, simple program that performs simple tasks. You can create Macros in Microsoft Excel that automatically calculates data for you.
Macro Virus :
A Virus that works by using Macros within a data file to become active, and to then attach itself to other data files.
Mail Bomb :
A flood of emails sent to the same address in a short period of time in an attempt to overload the system and disable it from all the data it is having to process.
Mail Drop :
An email address set up by a spammer to receive replies to spam sent. by using a Mail Drop, the spammer can delete the account the spam was sent from, therefore avoiding detection.
Mail Server :
The basis of an Email system. A Mail Server receives email messages and distributes them to the relevent person.
Malware :
A shortening of Malicious Software. this is Software that Installs itself on to a system in an attempt to disrupt it. Virusesand Worms are Malware.
Master Boot Record :
Sometimes know as a Partition Sector, this is the most critical part of the startup code. It is the first physical part on a hard disc that is loaded and executed when the computer is booted.
Mbps :
Stands for Megabits per Second, and is a measure of transfer speeds between computers locally and over the Internet.
Memory :
Also known as the RAM. The memory only records what you are currently doing while the computer is switched on, and is lost when the computer is switched off.
Memory Resistant Virus :
A type of Virus that when loaded, stays in the computers Memory even after the host program has been closed, unlike most Viruses that are only active when their host application is run.
Modem :
A Modem is a device that connects a computer to the Internet through 'phone lines.An amalgamation of the words Modulator and Demodulator, which refers to the way this device works bt transferring data from digital to audio, then back again.
Motherboard :
The Main circuit board inside a computer to which all the Hardware is fitted.
Multipartite Virus :
A type of virus that affects both the boot sector and the program files.
Munging :
The name given to the method of disguising email addresses in a code so they can not be harvested. Recipients are give a key to decode the address.