Saturday, August 14, 2010

COMPUTER COMPONENTS

Central Processing Unit (CPU) or the processor
             -is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer's functions.
              -refers to the microprocessor chip.
3 Parts of CPU
1. Control Unit-act as overall manager
2. Arithmetic Logic Unit(ALU)-performs mathematical and logical operations.
3. Main Memory -is the primary memory
          RAM(Random Access Memory)
               -memory used by the computer to run programs.
               -a temporary storage memory.
         ROM(Read Only Memory)
               -no matter how many times i turned off the computer the software
that I install will not be lost.

Motherboard -this is where the core components of your computer reside which are listed below. Also the support cards for video, sound,networking and more are mounted into this board.
Microprocessor -this is the brain of the computer. It performs commands and instructions and controls the operation of the computer.
Power Supply-comes with the case, but this component is mentioned separately since there are various types of power supplies. (250-500 watts)
Audio Card-is the voice of your system.
                   -is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs.
Floppy Drive-is a small disk storage divice that today typically has about 1.4 megabytes of memory.
Hard Drive-is a non-volatile storage device for digital data.
Network Card-use to connect to high speed internet access. (ex.cable or DSL lines)
Video Card-provides visual image to the monitor.
                   -used in computer games to provide additional memory visual effect.
Monitor - This device which operates like a TV set lets the user see how the computer is responding to
thie commands.                                                                                                                                            
Keyboard - This is where the user enters text commands into the computer.
Mouse - A point and click interface for entering commands which works well in graphical environments.
            -is an electronic device that controls the coordinates of cursor on your computer screen.

Printer -use to print out,prints whatever is on the monitor onto paper.
Video Camera-a webcam,a video capture device connected to a computer.
Uninterruptible Power Supply-essentially a battery back up in case of power failure.
(UPS)280VA-400VA

No comments:

Post a Comment