1. TECHNOLOGY GUIDE TWO
Computer Software

2. TECHNOLOGY GUIDE OUTLINE
TG2.1 Significance of Software TG2.2 Software Issues TG2.3 Systems Software TG2.4 Application Software TG2.5 Programming Languages

3. LEARNING OBJECTIVES
Describe the major software issues that organizations face today.
Discuss the advantages and disadvantages of open-source software.
Differentiate between the two major types of software.

4. LEARNING OBJECTIVES (continued)
Describe the general functions of the operating system.
Describe the major types of application software.
Explain how software has evolved and consider trends for the future.

5. TG2.1 Significance of Software
Computer program Stored program concept Documentation

6. TG2.2 Software Issues
Software defects Software evaluation and selection Software licensing Open systems Open source software

7. Types of Software
System software
Application software

8. TG2.3 Systems Software
System control programs
Operating system

9. Functions of the Operating System
Multitasking/multiprogramming
Multithreading
Multiprocessing
Virtual Memory
Graphical user interface (GUI)
Social interface

10. System Support Programs
System utilities
System performance monitors
System security monitors

11. TG2.4 Application Software
Proprietary application software
Contract software
Off-the-shelf application software
Package

12. TG2.5 Programming Languages
First-generation language or Machine Language
Second-generation language or Assembly language
Third-generation language or Procedural language
Fourth-generation language or Non-procedural language
Visual programming languages

13. Object-Oriented Languages
Methods
Object
Encapsulation
Reusability feature

14. Hypertext Markup Language and Extensible Markup Language
Hyperlinks
Hypertext document
Hypertext markup language (HTML)
Extensible markup language (XML)