The document discusses different types of computer hardware components. It describes the system unit as containing the main electronic components like the motherboard and processor. The processor contains a control unit and arithmetic logic unit and executes instructions in a repeating machine cycle. Memory, including RAM and ROM, is used to store instructions, data and results and is measured in kilobytes, megabytes, etc. Access time refers to how long it takes the processor to read from memory.

1. Business Software A software suite is a collection of individual programs available together as a unit A personal information manager ( PIM ) is application software that includes Page 118 Discovering Computers Fundamentals, 2011 Edition Chapter 3

2. Business Software Pages 118 - 119 Figures 3-12 – 3-14 Discovering Computers Fundamentals, 2011 Edition Chapter 3

3. Business Software Enterprises typically require special computing solutions for various functional units Page 119 Discovering Computers Fundamentals, 2011 Edition Chapter 3

4. Graphics and Multimedia Software Page 120 Figure 3-15 Discovering Computers Fundamentals, 2011 Edition Chapter 3 Click to view Web Link, click Chapter 3, Click Web Link from left navigation, then click Graphics Software below Chapter 3

5. Graphics and Multimedia Software Page 121 Figures 3-16 – 3-18 Discovering Computers Fundamentals, 2011 Edition Chapter 3

6. Graphics and Multimedia Software Pages 121 - 122 Figures 3-19– 3-20 Discovering Computers Fundamentals, 2011 Edition Chapter 3

7. Video: MediaCell Video Converter Discovering Computers Fundamentals, 2011 Edition Chapter 3 CLICK TO START

8. Graphics and Multimedia Software Web page authoring software helps users of all skill levels create Web pages that include multimedia and interactive content Page 122 Discovering Computers Fundamentals, 2011 Edition Chapter 3

9. Software for Home, Personal, and Educational Use Pages 124– 125 Figures 3-22 – 3-24 Discovering Computers Fundamentals, 2011 Edition Chapter 3

10. Software for Home, Personal, and Educational Use Pages 125 – 126 Figures 3-25 – 3-26 Discovering Computers Fundamentals, 2011 Edition Chapter 3

11. Software for Home, Personal, and Educational Use Pages 126 - 127 Figures 3-27 – 3-29 Discovering Computers Fundamentals, 2011 Edition Chapter 3

12. Software for Home, Personal, and Educational Use Pages 127 – 128 Figures 3-30 – 3-32 Discovering Computers Fundamentals, 2011 Edition Chapter 3 Click to view Web Link, click Chapter 3, Click Web Link from left navigation, then click Game Software below Chapter 3

13. Web Applications A Web application ( Web app ) is a Web site that allows users to access and interact with software from any computer or device that is connected to the Internet Pages 128 – 129 Figure 3-33 Discovering Computers Fundamentals, 2011 Edition Chapter 3

14. Web Applications Page 129 Figure 3-34 Discovering Computers Fundamentals, 2011 Edition Chapter 3

15. Application Software for Communications Page 130 Figure 3-35 Discovering Computers Fundamentals, 2011 Edition Chapter 3

16. Learning Tools for Application Software Online Help is the electronic equivalent of a user manual You can ask a question or access the Help topics in subject or alphabetical order Page 131 Figure 3-36 Discovering Computers Fundamentals, 2011 Edition Chapter 3

17. Learning Tools for Application Software Web-based training is a type of CBT that uses Internet technology and consists of application software on the Web Distance learning ( DL ) is the delivery of education at one location while the learning takes place at other locations Page 131 Figure 3-37 Discovering Computers Fundamentals, 2011 Edition Chapter 3

18. Summary Page 132 Discovering Computers Fundamentals, 2011 Edition Chapter 3

19. Chapter 4 The Components of the System Unit

20. Objectives Overview See Page 155 for Detailed Objectives Discovering Computers Fundamentals, 2011 Edition Chapter 4

21. Objectives Overview See Page 155 for Detailed Objectives Discovering Computers Fundamentals, 2011 Edition Chapter 4

22. The System Unit The system unit is a case that contains electronic components of the computer used to process data Page 156 Figure 4-1 Discovering Computers Fundamentals, 2011 Edition Chapter 4

23. The System Unit The inside of the system unit on a desktop personal computer includes: Page 157 Figure 4-2 Discovering Computers Fundamentals, 2011 Edition Chapter 4

24. The System Unit The motherboard is the main circuit board of the system unit A computer chip contains integrated circuits Page 158 Figure 4-3 Discovering Computers Fundamentals, 2011 Edition Chapter 4

25. Processor The processor , also called the central processing unit ( CPU ), interprets and carries out the basic instructions that operate a computer Contain a control unit and an arithmetic logic unit (ALU) Page 159 Discovering Computers Fundamentals, 2011 Edition Chapter 4

26. Processor Page 159 Figure 4-4 Discovering Computers Fundamentals, 2011 Edition Chapter 4 Click to view Web Link, click Chapter 4, Click Web Link from left navigation, then click Multi-Core Processors below Chapter 4

27. Processor The control unit is the component of the processor that directs and coordinates most of the operations in the computer The arithmetic logic unit (ALU) performs arithmetic, comparison, and other operations Pages 159 - 160 Discovering Computers Fundamentals, 2011 Edition Chapter 4

28. Processor For every instruction, a processor repeats a set of four basic operations, which comprise a machine cycle Page 160 Figure 4-5 Discovering Computers Fundamentals, 2011 Edition Chapter 4

29. Processor Pages 160 - 161 Discovering Computers Fundamentals, 2011 Edition Chapter 4

30. Data Representation Page 162 Discovering Computers Fundamentals, 2011 Edition Chapter 4

31. Data Representation A computer circuit represents the 0 or the 1 electronically by the presence or absence of an electrical charge Eight bits grouped together as a unit are called a byte. A byte represents a single character in the computer Page 162 Figures 4-6 – 4-7 Discovering Computers Fundamentals, 2011 Edition Chapter 4

32. Data Representation ASCII (American Standard Code for Information Interchange) is the most widely used coding scheme to represent data Page 162 Figure 4-8 Discovering Computers Fundamentals, 2011 Edition Chapter 4

33. Data Representation Page 163 Figure 4-9 Discovering Computers Fundamentals, 2011 Edition Chapter 4

34. Memory Memory consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data Stores three basic categories of items: Page 163 Discovering Computers Fundamentals, 2011 Edition Chapter 4

35. Memory Each location in memory has an address Memory size is measured in kilobytes ( KB or K ), megabytes ( MB ), gigabytes ( GB ), or terabytes ( TB ) Page 164 Figure 4-11 Discovering Computers Fundamentals, 2011 Edition Chapter 4

36. Memory The system unit contains two types of memory: Pages 164 - 165 Discovering Computers Fundamentals, 2011 Edition Chapter 4

37. Memory Page 165 Figure 4-12 Discovering Computers Fundamentals, 2011 Edition Chapter 4

38. Memory Three basic types of RAM chips exist: Page 166 Discovering Computers Fundamentals, 2011 Edition Chapter 4 Click to view Web Link, click Chapter 4, Click Web Link from left navigation, then click RAM below Chapter 4

39. Memory RAM chips usually reside on a memory module and are inserted into memory slots Page 166 Figure 4-13 Discovering Computers Fundamentals, 2011 Edition Chapter 4

40. Memory The amount of RAM necessary in a computer often depends on the types of software you plan to use Memory cache speeds the processes of the computer because it stores frequently used instructions and data Pages 166 - 167 Discovering Computers Fundamentals, 2011 Edition Chapter 4

41. Memory Page 167 Discovering Computers Fundamentals, 2011 Edition Chapter 4 Click to view Web Link, click Chapter 4, Click Web Link from left navigation, then click ROM below Chapter 4

42. Memory Flash memory can be erased electronically and rewritten CMOS technology provides high speeds and consumes little power Pages 167 – 168 Figure 4-14 Discovering Computers Fundamentals, 2011 Edition Chapter 4

43. Memory Access time is the amount of time it takes the processor to read from memory Measured in nanoseconds Page 168 Figures 4-15 – 4-16 Discovering Computers Fundamentals, 2011 Edition Chapter 4

44. Memory End for today We will cover the rest at the nextweek’s class Page 168 Figures 4-15 – 4-16 Discovering Computers Fundamentals, 2011 Edition Chapter 4