Unit 1
terabyte
A terabyte is 10^12 or 1,000,000,000,000 bytes. (1 trillion, 1024 gigabytes)
CPU
Abbreviation of central processing unit. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place.
ascii
American Standard Code for Information Interchange
Exabyte
An Exabyte is 10^18 or 1,000,000,000,000,000,000 bytes. (1024 petabytes)
Interrupt Request Line
An assigned channel over which a device can send a signal to the processor to get its attention.
ccna
Cisco Certified Network Associate
I/O address
Each I/O device connected to your computer is mapped to a unique I/O (Input/Output) address. These addresses are assigned to every I/O port on your computer, including USB, Firewire, Ethernet, VGA, and DVI ports, as well as any other ports your computer might have.
ioapic
I/O advanced programmable interrupt controller
KHz
Kilohertz. (1,000 hertz/cycles per second).
frequency
Number of cycles per second
kilobit
One kilobit (abbreviated "Kb") contains 1024 bits
megabit
One megabit (abbreviated "Mb") is equal to 1,000 kilobits. There are 1,000 megabits in a gigabit.
GHz
Unit of measurement for a processor's clock speed. 1000 MHz.
MHz
a measure of frequency. one of these processors can cycle through its registers one million times each second.
byte
byte is a unit of measurement used to measure data. One byte contains eight binary bits, or a series of eight zeros and ones.
Serial
of or relating to the apparent or actual performance of data-processing operations one at a time
terabit
one thousand gigabits
parallel
sending data 2 or more bits at a time
bus width
the size of the internal electrical pathway along which signals are sent from one part of the computer to another. A wider bus can move more data, hence faster processing.
clock
- BIOS component that dictates the speed of the CPU
bit
A bit (short for "binary digit") is the smallest unit of measurement used to quantify computer data. It contains a single binary value of 0 or 1.
bus speed
A bus is simply a circuit that connects one part of the motherboard to another. The more data a bus can handle at one time, the faster it allows information to travel. The speed of the bus is measured in megahertz (MHz.
gigabit
A gigabit is 10^9 or 1,000,000,000 bits. One gigabit (abbreviated "Gb") is equal to 1,000 megabits or 1,000,000 kilobits.
gigabyte
A gigabyte is 10^9 or 1,024 megabytes (1 billion bytes)
kilobyte
A kilobyte is 10^3 or 1,024 bytes.
Memory address
A logical memory address defined in a processor's address bus that allows the system to access physical RAM or ROM memory locations.
Hz
A measurement of machine cycles per second that is also used to measure processor speed
megabyte
A megabyte is 10^6 or 1,024 kilobytes
petabyte
A petabyte is 10^15 or 1,000,000,000,000,000 bytes. (1024 terabytes)