1. Computer Literacy for IC 3 Unit 1: Computing Fundamentals © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.1 Chapter 1: Identifying Types of Computers

2. Learning Targets Unit 1, Chapter 1 1.I can identify categories of computers 2.I can identify basic components of computers 3.I can measure memory and identify the flow of information 4.I can identify relationships between computers © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.2

3. Memory Measurement Binary number system Only two digits: 0 and 1 Electrical devices replaced by electronic transistors © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.3

4. Text and Numbers ASCII and Unicode are standards Limited by number of binary digits used ASCII = 8 bit Unicode = 32 bit © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.4 International System of Units (SI) MultiplierSize Kilo1,000 Mega1,000,000 Giga1,000,000,000 Tera1,000,000,000,000 Peta1,000,000,000,000,000

5. Pictures and Sound Pictures Patterns of dots Dots are known as pixels Sound Analog Analog to Digital Converter assigns numbers to volume and pitch Converts sounds into series of numbers © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.5

6. Data Flow and Basic Functions of a Computer Step 1: Input User enters words, numbers, or commands via keyboard or mouse Step 2: Primary Storage Data, program, and commands stored in RAM Step 3: Processing Takes data from RAM and processes according to a program and entered commands © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.6

7. Data Flow and Basic Functions of a Computer Step 4: Primary Storage Results stored in another location in RAM Step 5: Output Processed data transferred from memory to monitor or printer Step 6: Secondary Storage Processed data written to hard disk, flash drive, or optical disc © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.7

8. Flow of Information When Creating a Document 1.Start the computer 2.Start the application 3.Open the file 4.Edit the file 5.Print the file 6.Save the file 7.Close the file 8.Close the application 9.Turn off the computer © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.8

9. Sharing Resource sharing Computers on a network share: Data Hardware Software Internet connections Sharing data Network connections allow rapid data file movement Sharing software Software installed and maintained on a server Easy to maintain © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.9

10. Sharing Distributed databases Large database stored on several computers Distributed processing Large computing problems broken into smaller parts and processed on different computers Reassembled into an integrated solution © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.10

11. Objectives Covered Identified categories of computers Identified basic components of a computer Measured memory and identify flow of information Identified relationships between computers © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.11

12. Questions? © 2010 Pearson Education, Inc. | Publishing as Prentice Hall.12