module 1 computer fundamentals
uninterruptible power supply (ups)
A battery power source that provides electric current during a power outage.
server
A computer that provides resources to other computers on a network.
scanner
A device that can read text or illustrations printed on paper and translate the information into a form the computer can use.
mouse
A device that controls the movement of the cursor or pointer on a display screen.
printer
A machine that prints characters or other images on paper.
software
A program or instructions that give directions to the computer.
power spikes
A short, fast transfer of electrical voltage, current, or energy.
expansion slot
A slot on the motherboard where you can add a card to the computer that adds capabilities, such as sound, graphics handling, or network communications
usb flash drive
A small removable data storage device.
circuit board
A thin plate or board that contains electronic components.
tablet pc
A type of notebook computer that has an LCD screen on which the user can write using a special-purpose pen, or stylus.
surge suppressor
An electrical outlet that controls unexpected sharp increases in electricity
hardware
Computers, printers, and other devices.
input
Data that is entered into the computer system via an input or storage device.
computer
Electronic device that receives data, processes data, stores data, and produces a result.
firewire
Fast connection for decks, cameras, and external drives
data
Information
information
Information
driver
Instructs the operating system on how to operate specific hardware.
read-only memory (rom)
Permanent storage; instructions are burned onto chips by the manufacturer.
trackball
Pointing device that works like a mouse turned upside down; controls the movement of the on-screen pointer.
encryption
Process of converting readable data into unreadable characters to prevent unauthorized access.
laser printer
Produces images using the same technology as copier machines.
inkjet printer
Sprays ink through small holes to form words and images on paper.
plug-and-play
The capability of a Windows-based PC to detect new, compatible devices.
motherboard
The main circuit board of a computer
control unit
The part of the computer that directs instructions.
digital camera
Used to record a video and then transfer it to the computer
hard disks
Used to store data inside the computer; removable versions also available.
random access memory (ram)
Where instructions and data are stored on a temporary basis. This memory is volatile.
ping
a DOS command that tests connectivity and isolates hardware problems and any mismatched configurations
backup
a copy of a file that is created to protect one's work and data
universal serial bus (usb)
a port used to transport data from a peripheral device into the computer.
central processing unit (cpu)
also known as the microprocessor; the brains of the computer
pointing device
an input device that allows a user to control a pointer on the screen
keyboard
an input device that enters data with letters, numbers, symbols, and special function keys.
notebook computers
are the size of a binder and can fit in a backpack, it is only one piece.
arithmetic/logic unit(alu)
carries out all arithmetic and logical operations.
port
carry, bring
mobile devices
designed to connect to the internet wirelessly
biometrics
identity verification using physical characteristics
supercomputer
largest and fastest computers, capable of storing and processing tremendous volumes of data.
modem
modem
moniter
output device that displays data and pictures to the user of the computer
output
production of a certain amount
data theft
removing data from a computer without authorization
memory
the ability to store and retrieve information over time
humidity
the amount of moisture in the air
audio input
the process of entering any sound into the computer