1. in the Learning Environment
Personal Computers
in the Learning Environment
Chapter 3
Jennifer House & Jenny Dority

2. Four major components of the computing cycle
Taking in data
Processing the data
Storing it as necessary
Outputting the results to you

3. Hardware and Software
Software is the term for programs that tell a computer how to accomplish a given task
Hardware includes all of the computer components that are physical
Touchable pieces, equipment

4. What is the difference between Memory and Storage?
Memory – A series of RAM chips that provide temporary, volatile electronic storage that is used by the CPU to store short-term data.
Storage - A nonvolatile, electronic space on a magnetic or optical disc that the computer can use to store information and data for use at a later time.

5. The Role of the Operating System
Gives special instructions on how to act like a computer
A collection of programs that tell it how to function and how to manage its own operation
Creates an interface between you and the machine

6. 3 Classes of Application Software
Utility Programs
Administrative Applications
Academic Applications
Improve or monitor computer operations
Word processing and grade book programs
Tutorials and electronic encyclopedias

7. CPU Central Processing Unit
Controls all operations of the computer
Processes data
Coordinates all components
Higher the megahertz – more responsive the machine

8. Input / Output devices Input = any peripheral used to enter data
Ex. Keyboard and mouse
Output = pieces of hardware that move information out
Ex. Monitor and printer

9. Monitor Resolution BUY HIGH Resolution = clarity of image on screen
Measured in pixels
Measured vertically and horizontally
Higher vertical number = crisper picture
BUY HIGH

10. HIGH DPI = CRISP TEXT AND GRAPHICS
Printer Resolution
Higher resolution = clearer text and graphics
Measured in dpi (dots per inch)
HIGH DPI = CRISP TEXT AND GRAPHICS

11. Do you have a VIRUS ??? Program written to disrupt or destroy
Transmitted by attaching to normal files
Antivirus program should be installed on classroom computers
Program updated monthly

12. Storage Devices Hard disk Floppy disk Removable disk CD-ROM CD-R CD-RW
DVD

13. Questions