computer hardware introduction. computer hardware introduction the basic form of a computer is this:...

Computer Hardware Computer Hardware

IntroductionIntroduction

Computer Hardware Computer Hardware IntroductionIntroduction

The basic form of a computer is this:

PROCESSING

MEMORY

INPUT OUTPUT

But let’s look inside a computer in more detail first


CENTRAL PROCESSING UNIT (CPU)MOTHERBOARD

POWER SUPPLY

RANDOM ACCESS MEMORY (RAM)HARD DRIVE

OPTICAL DRIVEOTHER DISK DRIVES

OTHER CARD SLOTSVIDEO CARD

• is the connector of most other parts of the computer

•Is a large plastic chip with many integrated metal connections


CENTRAL PROCESSING UNIT (CPU)

MOTHERBOARD

POWER SUPPLY




• This is the BRAIN of the computer that does the actual tasks required by the computer

• It is usually covered by a fan that helps cool it off



POWER SUPPLY




• This is the TEMPORARY MEMORY of the computer•It holds all of the tasks that are going on at any one time•Accessing it is VERY FAST, but it only works while the computer is running

•when the computer is turned off, everything that was stored in RAM is lost



POWER SUPPLY

RANDOM ACCESS MEMORY (RAM)

HARD DRIVE



• This is the main semi-PERMANENT MEMORY of the computer• Files can be written and read by means of a magnet placing signals on a metal disc• It is slower than RAM, however it holds much more data and will keep the data even if the computer is turned off



POWER SUPPLY




• This is the unit that provides power to most of the computer’s parts• It has an input wire that is plugged into the wall socket• It not only transfers power, but it also changes the voltages of the electricity, since different parts need different amounts of power• It has lots of red, black and yellow wires that connect the parts of the computer



POWER SUPPLY




• They are often called the CD Drive, and include CD-W, CD-WR, DVD, DVD-R etc• They are all the drives that use lasers to read information that is etched onto a plastic disc• They are a way to store data permanently, but also in a way that is portable



POWER SUPPLY


OPTICAL DRIVE

OTHER DISK DRIVES


• These are other forms of portable semi-permanent memory that are usually in the form of a removable disk• This particular computer does not seem to have one, but this is where it would be usually found



POWER SUPPLY




• This is the card that controls what shows up on the monitor• The more demanding the needs of what is being shown (video gaming, animation, etc), the more powerful the video card needs to be



POWER SUPPLY



OTHER CARD SLOTS

VIDEO CARD

• This are spaces for other cards to be connected to the system• The most common is likely a Network Card, which allows the computer to be connected to a network of other computers

• This is also likely how your computer is connected to the Internet at home


Outside of the computer, we connect a number of PERIPHERALS

INPUT DEVICES

Keyboard

Mouse

Touchscreen

Light Pen

Scanner

MEMORY STORAGE

External Hard Drive

CD/DVD

Flash Drive

Diskette

Magnetic Tape

OUTPUT DEVICES

Monitor

Printer

Speakers

(MORE) PERMANENT MEMORY

TEMPORARY MEMORY

OUTPUT

PROCESSING UNIT

INPUT


MOUSE

KEYBOARD

TOUCH SCREEN

CPU

VIDEO CARD

MONITOR

RAM

FLASH DRIVE

OPTICAL DRIVE

HARD DRIVE

PRINTER

POWER SUPPLY

computer hardware introduction. computer hardware introduction the basic form of a computer is this:...

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