Toshiba PTME3U05V02N User Manual

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file extension — The three characters following the period (pronounced 

“dot”) at the end of a file name. The extension indicates the type of 
file. Examples are .exe for program files and .hlp for help files. See 
also file name.

folder — Also called directory. A container for organizing files saved to 

a disk. A folder is symbolized on screen by a graphical image (icon) 
of a file folder. A folder can contain files and other folders.

format — (verb) To prepare a blank disk for use with the computer’s 

operating system. Formatting creates a structure on the disk so the 
operating system can write information to the disk or read 
information from it.

frontside bus — The primary pathway (bus) between the CPU and the 

computer’s main memory. Also called “system bus.” See also bus.

function keys — The keys labeled F1 through F12, typically located on 

the keyboard. Their function is determined by the operating system 
and/or individual programs.

ground — A conductor to which all components of an electric circuit are 

connected. It has a potential of zero (0) volts, is connected to the 
earth, and is the point of reference for voltages in the circuit.

hard disk — A storage device composed of a rigid platter or platters that 

can be magnetically coded with data. Hard disks are used for long-
term storage of programs and data. The primary (or only) hard disk 
in a computer is usually fixed, but some computers have secondary 
hard disks that are removable.

hardware — The physical components of a computer system. Compare 

HDMI (High-Definition Multimedia Interface) — An interface 

used to transmit high quality audio and video signal via a single 
cable in digital format, providing better picture quality than analog 
signal.

HDMI-CEC (HDMI Consumer Electronics Control) — One A/V 

component can control another while using this function, if 
connected with HDMI cables. See also HDMI.