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.