INFORMATION PROCESSING CYCLE Solid Blue Boxes with Video Cameras or pictures are actually links to videos. Click on them to advance to the web to watch.

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Presentation transcript:

INFORMATION PROCESSING CYCLE Solid Blue Boxes with Video Cameras or pictures are actually links to videos. Click on them to advance to the web to watch.

What is a computer? A computer is a machine that receives data and processes that data in some way to produce information. A computer is an electronic device that accepts data, performs computations, and makes logical decisions according to the data it is given, to produce information in a form that is meaningful to humans.

How does a computer process information?

Definition of Input Definition of Output Definition of Processing

INPUT DEVICES (p.450) Keyboard Mouse Joystick Graphics Tablet Touch Display Speech Recognition Device Scanners Sound Board Digital Camera New Technology

Output Devices (p.451) Monitor – CRT and LCD Printers –Laser –Ink Jet Plotter Microfilm Synthesizers Robots

Hardware on the Outside and-learning/learning- resources/comp_les1.html and-learning/learning- resources/comp_les1.html

Processing Devices (p. 452) CPU – Stores data and programs, executes program instructions and performs operations (THE BRAIN) Motherboard –Tells EVERYBODY what to do

Hardware on the Inside les2.html les2.html

STORAGE DEVICES (p ) Hard Drive Diskette (Floppy) Drive CD DVD Can you name others? SIM Card USB Drive Camera Card Memory (short-term and long-term) –ROM (Read Only Memory) – permanent/unchanging –RAM (Random Access Memory) – can be added to

PROCESSING CYCLE RETRIEVE INSTRUCTION DECODE INSTRUCTION EXECUTE INSTRUCTION STORE RESULT