Dell Latitude C540 - Manual (Page 164)

A unit of measure commonly used to indicate the approximate capacity of a battery. For example, a 4400-
mAh battery can supply 4400 mA (or 4.4 A) of current for 1 hour or 2200 mA for 2 hours.
MB - megabyte
A storage unit equal to 1,048,576 bytes; however, when used to refer to hard drive storage, the term is
often rounded to mean 1,000,000 bytes.
MB/sec - megabytes per second
One million bytes per second. This measurement is typically used for disk and tape transfer ratings.
Mbps - megabits per second
One million bits per second. This measurement is typically used for transmission speeds for networks and
modems.
MDC - modem daughter card
A card that enables certain types of modems and allows your computer to communicate with other
computers over analog telephone lines.
media bay - See module bay.
memory - A temporary data storage area inside your computer. Because the data in memory is not
permanent, Dell recommends that you frequently save your files while you are working on them, and always
save your files before you shut down the computer. Your computer can contain several different forms of
memory, such as RAM, ROM, and video memory. Frequently, the word memory is used as a synonym for
RAM.
memory address - A specific location where data is temporarily stored in RAM.
memory module - A small circuit board containing memory chips, which connects to the system board.
MHz - megahertz
A measure of frequency that equals 1 million cycles per second. The speeds for computer microprocessors,
buses, and interfaces are typically measured in MHz.
microprocessor - The primary computational chip inside the computer. As the "brains" of the computer,
this chip controls the interpretation and execution of arithmetic and logic functions. Sometimes, the
microprocessor is referred to as the processor or the CPU (central processing unit).
Mini PCI card - A small form factor card that provides portable computers with integrated communication
capabilities, such as a modem, network adapter, or a combination of the two.
mm - millimeter