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BKHS CBA Hardware
Question | Answer |
---|---|
the central processing unit--the component that executes commands from a computer's hardware and software; the principal computer chip that contains several processing components, which determines the computer's operating speed; the "brain" of a computer | cpu |
a hardware component that allows data to be entered into the computer through a variety of devices such as a keyboard, microphone, scanner, flash drive, or mouse | input device |
the action of gaining access to a computer or a network by entering a username and password; also called Login/Sign In | logon |
computer chips that store data and programs while the computer is working; often called RAM or Random Access Memory | memory |
a hardware component that allows the user to view or listen to the data a computer processes such as a monitor, printer, headphones, or speakers | output device |
additional hardware that isn't necessary for a computer to function, but does enhance how the computer can be used | peripheral |
internal or external hardware used to store and retrieve data, such as a disk drive, CD/DVD drive, flash drive, or tape drive | storage device |
a computer case that contains the CPU, power supply, memory, and storage | system unit |
a type of electronic signal that is processed, sent and stored in bits | digital |
= 8 bits; a single character of data | byte |
the physical components of a computer system | hardware |
the main circuit board of a computer | motherboard |
the hardware device that controls the timing on a computer; measured hertz | system clock |
one billion cycles per second | gigahertz |
universal product code---a bar code | upc |
optical mark reader--a scanning device that reads bubble sheets | omr |
optical character reader--a device that reads handwritten or typed text | ocr |
the unit of measurement for describing the speed of a printer | ppm |
type of printer that "burns" the data to the page; most common in business | laser |
type of printer that is used most commonly for personal use | ink-jet |
the unit measurement for describing the quality of a printer | dpi |
a communication device for connecting to the Internet; example: phone, DSL, cable | modem |
network interface card; a communication device for connecting a computer to a network | nic |
one billion bytes | gigabyte |
one million bytes | megabyte |
type of storage media that uses a laser to burn data to the storage media | optical |
type of storage media that is used in memory cards and flash drives | flash |
type of storage method that is used by most hard drives to store data | magnetic |
output printed on paper | hard copy |
output displayed on a screen | soft copy |