1. What is Computer Software?

2. Got to have both to get the job done!
Hardware vs Software
Got to have both to get the job done!

3. How does Software work? Algorithms have to be written
Algorithm turned into computer language
Another specialized program turned this language into something the computer understands
Software development – multi-step process
First programmer – Grace Hooper – created FLOW MATIC (later known as – COBOL)

4. Types of Software Applications Software Systems Software
Operating systems
Utilities
Language translators

5. Applications Software

6. Operating Systems Interface between user and the computer Many brands
Windows – designed for processor Intel
Macintosh computers use processor made by Motorola - OS

7. Utility Software Helps perform housekeeping chores Tasks include:
Antivirus programs
Copy file from hard drive to another location
Convert graphics file so it can be used by another program
Backup copy of hard drive

8. I don’t understand! I need a translator.
Language Translators
Converts code written in English to a language the computer can understand
Translator helps computer process data
I don’t understand! I need a translator.

9. Operating Systems Mac OS DOS Windows
Unix – portable operating system (can run on just about any hardware platform)
Networking Operating System – group of two or more computers to be connected
Window NT
Novell’s Netware
IBM’s Warp Server

10. User Interfaces Determines how user friendly the computer is
Part we interact with when using the computer
Command-line interface such as DOS
Graphical interfaces such as Windows

11. Command Line Early computers used only this Have to memorize codes
Not very user friendly
Not colorful – usually written in black and white
No pictures

12. Graphical User interfaces
Came about with menus
Graphical user interface (GUI)
Came about with Apple’s development of Macintosh Finder
Pictures (icons) represent software
Colorful
Contributed to the explosion of computer use.

13. Project Research the three operating systems:
Mac OS v.?
Windows XP or Vista or 7
Unix
Determine advantages and disadvantages of each, create a two page report on your findings. Which one do you think would be the best for someone to use in a home business.