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ESD
Electro-Static Discharge. The sudden discharge of electricity form a static charge which has built-up
slowly. Example: the shock you get from a doorknob on a dry day or the sparks you get form brushing
hair on a dry day.
Extended Memory
All memory more than the 640KB recognized by MS-DOS as system memory.
FCC
Federal Communication Commission.
Floppy Disk
A spinning platter of magnetic data storage media which is highly flexible.
GB
Gigabyte.
Hard drive
A spinning platter of magnetic data storage media where the platter is very stiff.
Hexadecimal
A decimal notation for the value of a 4 bit binary number. (0-9, A, B, C, D, E, F) Example: 2F in
hexadecimal = 00101111 = 47 in decimal.
I/O
Input/Output. Data entering and leaving your notebook in electronic form.
I/O Port
The connector and associated control circuits for data entering and leaving your notebook in electronic
form.
IDE
Intelligent Drive Electronics. A type of control interface for a hard drive which is inside the hard drive
unit.
Infrared
Light just beyond the red portion of the visible light spectrum which is invisible to humans.
IR
An abbreviation for infrared.
IrDA
Infrared Data Association. An organization which produces standards for communication using infrared
as the carrier.
IRQ
Interrupt Request. An acronym for the hardware signal to the CPU that an external event has occurred
which needs to be processed.
