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Computer Basics 1 Chapter One Computer Basics Part 1.

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Presentation on theme: "Computer Basics 1 Chapter One Computer Basics Part 1."— Presentation transcript:

1 Computer Basics 1 Chapter One Computer Basics Part 1

2 Computer Basics 2 What is a computer? Computer It is an electronic device created to enable users to input, manipulate, store, and output information. What can we do?  write letters,  create pictures,  make calculations,  play games, and  send electronic mail (e-mail)

3 Computer Basics Hardware Needs Software to Work

4 Computer Basics Hardware Needs Software to Work Hardware –Physical components of the computer (monitor, keyboard, memory chips, hard drive) Software –Set of instructions that directs hardware to accomplish a task

5 Computer Basics 5 Where are they?  cash registers,  gas pumps,  cameras,  cars,  homes,  stereos, and  even toys. Type of computers (at home or work )  single user (at a time)  PCs,  microcomputers,  workstations,  laptops,  desktops  smart phones  tablets

6 Computer Basics 6 How do computers work? They still rely on people for instructions A computer stores temporary data such as keyboard characters in its RAM chips. RAM is: A computer's temporary, yet primary workspace, and manipulates data at very high speeds Data on RAM, can be processed by the computer's CPU Data Process Information InputOutput CPU RAM How do computers work?

7 Computer Basics 7 What is computer data? Data  Data refers to any information that goes into or is taken from the computer.  Anything we put into the computer is "data," what we get out of the computer is "information."

8 Computer Basics 8 What are the basic parts of a computer?

9 Computer Basics Functions of the Microcomputer

10 Computer Basics 10 Computer's basic parts Input devices  Input devices are the pathways through which information enters to a computer's system unit. Devices used for entering data into a computer  keyboard,  scanner,  mouse, and  digitizer tablet  joystick  microphone

11 Computer Basics 11 Computer's basic parts Output device  When a computer completes a computation, the resulting data is sent to an output device.  Any internal or peripheral device attached to the system unit allowing the user to view results  Examples:  Printers  Monitors  Speakers  Digital projectors

12 Computer Basics 12 What are peripherals? Hardware devices connected to a computer Enhance a computer's functions, or add a new service or additional data resource devices can be either input or output devices. Examples CD ROM drive Speakers Modem External Drive Unit Floppy drive Smart Card Readers  http://www.gemplus.com/products/hardware/gcr410.htm http://www.gemplus.com/products/hardware/gcr410.htm  http://www.gemplus.com/products/hardware/gempcTouch440.htm Peripherals

13 Computer Basics 13 Computer's basic parts System unit Controls all computer functions (processing/ storing data)  motherboard,  central processing unit (CPU),  random-access memory (RAM) and  read-only memory (ROM) chips,  hard and floppy disks, and  several input/output ports, communicates with all the computer's parts  unit works with the computer's peripheral devices (two types: output and input)

14 Computer Basics 14 System unit.


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