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COMPUTER HARDWARE

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Page 1: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

COMPUTER HARDWARE

Page 2: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

What is a Computer?

“A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You probably already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.” (http://www.gcflearnfree.org/computerbasics/1)

Video

Page 3: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Computer Hardware

Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop computer Laptop SmartPhone Sever Keyboard Speakers Motherboard Anything you can see

Page 4: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop
Page 5: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

What is inside?

Page 6: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

5 Categories of Devices

Input devices – any device that allows the user to put information into the computer (e.g. keyboard)

Output devices – any device that allows the computer to send information to the user (e.g. monitor)

Processing devices – any device that converts or redirects information to another device (e.g. motherboard)

Power device – any device that provides power to other devices (e.g. power supply)

Storage devices – any device that stores information for any length of time.   Temporary storage devices (RAM) quick storage made ready for quick access to information, it 

also needs power to hold onto the information.  If you loose power you loose the information stored in your RAM

Permanent storage devices (hard drives etc) hold information in an organized manor, like a filing cabinet.  No power is required to maintain the information once it has been saved.

Page 7: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Power Supply“the heart & blood”

connects computer to external power changes power into a form useful to various components on motherboard

many components require different voltages and currents

Page 8: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Motherboard“the nervous system”

circuit board that is the foundation of a computer 

allocates power to theCPU, RAM, and all other computer hardware components

allows hardware components to communicate with one another

although easy to see in personal computers, this arrangement is common in most computing devices

Page 9: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop
Page 10: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Random Access Memory (RAM)“short term memory”

alternatively referred to as main memory, primary memory, or system memory

allows information to be stored and retrieved

information is accessed randomly instead of sequentially like it is on a CD or hard drive 

requires power to keep the data accessible; if power is lost all data contained in memory lost

Page 11: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Hard Disk Drive“long term memory”

used to permanently store and retrieve information

data is stored magnetically on a spinning platter

it remains even when powered off

can be disconnected without loss of data

SSD (solid state drive): stores electronically within silicon 

to achieve a quicker response have a limited number of writes 

but don’t have moving parts that wear out

Page 12: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Central Processing Unit (CPU)“the brains”

the Microprocessor contains the CPU & cache memory

handles all the instructions you give your computer

performs the basic arithmetical, logical, and input/output operations of a computer system

the faster it does this, the better located on the motherboard gets very hot so it needs its own  

built in cooling system

Page 13: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop
Page 14: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Graphics Processing Unit (GPU)“your artist side”

although the CPU can process graphics, it is much faster to let a specialist, the GPU, handle it

the GPU is installed on a video card, or graphics card

Page 15: Computer Hardware - MS. SALVO'S SITE · Computer Hardware Hardware is defined as the machines, wiring, and other physical components of a computer or other electronic system. Desktop

Video Time

Computer Basics How is a CPU made?