Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
power supply
|
- converts the alternating current power to direct current power for use by the computer components.
-power is supplied to all components from the main supply through the colored wites that end in plastic connectors. -port of the process function. |
|
central process unit (cpu)
|
-the brains of the computer.
-oversees most of the operations of the computer. -attached to the motherboard. -has a dedicated fan to cool it. -part of the proces function. |
|
motherboard
|
-main circuit board which connects internal components together.
-CPU and memory are generally on the motherboard. -responsibe for sending power, data, and instructions among all of the components. -part of the process function. |
|
network port
|
-connection port of netword cables allowing multiple computers to be hooked together.
-part of the process function. |
|
fan
|
-draws cool air over the components inside the canse
-prevents the computer for over heating. |
|
ribbon cables
|
-wide flat grouping of wires
-used to connect the motherboard and the drives -separate cables are needed for each drive. part of the process function |
|
case
|
-metal or plastic box surrounding the internal components of the computer
-protects parts from dust and damage -often erroneously called the CPU |
|
cd/dvd drive
|
-uses a laser beam to read data from a spiral of indentations and flat areas on a layer of metallic film
-if the data track could be lifted off a cd in a staight line, it would be almost 3/5 mile long -dvd's store information in two seperate layers and use a smaller laser beam to read the information -connects to the motherboard with a ribbon cable -part of the storage function |
|
keyboard and mouse ports
|
-connection port for keyboards
-part of the input function |
|
floppy drive
|
-reads and writes data on a 3.5 inch floppy disk.
-connects to the motherboard with a ribbon cable -usb flash or optical drives have replaced floppy drives in newer systems -part of the storage function |
|
hard drive
|
-large capacity magnetic storage system which stores system components, program files, and documents in a relatively permanent form
-busiest mechanical part of the computer- spins at 170 mph |
|
dram parts and memory module
|
-dram= dynamic random access memory
- very fast storage used for data -memory chips contain millions of transistors and capacitors used to store programs and data -connecs eith the motherboard through an expansion port -the module is a circuit board and connector which holds multiple memory chips. -part of the storage function |
|
usb ports
|
usb= universal cerial bus ports
-used to connect keyboards, mouse devices, monitors, printers, and other accessories without conflict -provides power and versatility -may be in the front of the case and attached through a ribbon cable of connected directly to the motherboard. -depending on what is connected can be sed for input, storage, or output. |
|
sound cards
|
allows computer to play and recard audio by converting analog sounds to digital and back
-contains external jacks that allow microphones and speakers to be pluged in. -connected to the motherboard by an expansion port -part of the input and output functions. |
|
graphics card
|
-translates image information from the computer into a form for display on the monitor.
-connected to the motherboard by an expansion port -part of the output function |