Hard drive
Also called fixed disk. A hard drive is connected to the computer and can be installed or removed. Data written to a hard drive remains until it is overwritten or corrupted.
The
I/O
Input/output. Refers to peripheral devices, such as printers, that are addressed through an I/O address.
I/O address
I/O stands for input/output. Peripheral devices, such as printers, are addressed through the I/O port address.
IRQ (interrupt request line)
The IRQ is a hardware line that a device uses to signal the microprocessor when the device needs the microprocessor’s services. The number of IRQs is limited by industry standards.
LCD (liquid-crystal display)
The LCD screen on your computer differs from the display screen of a desktop monitor. Most desktop monitors use CRT
MB (megabyte)
1,024 kilobytes.
Megabit
1,048,576 bits or about 128 kilobytes.
Operating system
A program that supervises the computer's operation, including handling I/O. Application programs and users can request
84 Users Manual