1. CS101 Lecture 5 Computer Software

2. Software Software is a set of instructions for the computer to follow to accomplish a task. Two main types of software are… –1) Operating System –2) Applications

3. Applications Applications (also called Programs) = Instructions for the computer on how to do certain functions under the control of the operating system Examples Of Applications: –Firefox –Microsoft Word –Halo

4. Operating System Set of instructions that controls all hardware and software on the computer

5. iClicker Poll That kind of computer do you use for your college work? a)Windows b)Mac c)Linux d)Google Chrome OS (Chrombook) e)Don’t use a computer to complete my college work.

6. iClicker Poll That version of Windows? a)Windows 8 b)Windows 7 c)Windows Vista d)Windows XP e)Not Sure

7. iClicker Poll That version of Mac OSX? a)10.10 Yosemite b)10.9 Mavericks c)10.8 Mountain Lion d)10.7 Lion e)Not Sure

8. iClicker Poll That kind of computer would you buy today? a)Windows b)Mac c)Linux d)Chromebook e)Other

9. Operating System Current Usage Percentage http://en.wikipedia.org/wiki/Usage_share_o f_operating_systems#Desktop_and_laptop_ computershttp://en.wikipedia.org/wiki/Usage_share_o f_operating_systems#Desktop_and_laptop_ computers

10. Who cares who runs your device?

11. iClicker Poll Who is the richest person in the world? a)The King of Saudi Arabia b)Mark Zuckerberg c)Bill Gates d)Tom Cook e)Warren Buffett

12. Who cares who runs your device? Everyone else has to go through them to get to you. What does that mean? The tale of IBM and Netscape

13. What is an open or closed system? Open = No one owns the rights to making a computer with that operating system installed on the computer. Closed = Someone dose own the rights to making a computer with that operating system on the computer.

14. Four most popular current desktop operating systems 1 Windows –Controls an open system 2 Macintosh OS X –Controls a closed system 3 Linux –Is an open and open source operating system Open source = Anyone can have source code –Example is the Ubuntu operating system we will be using in lab Chrome OS (Google) is built using Linux

15. What explains the Mac and Windows Stereotypes? Is it and Open or Closed System?

16. Windows runs an open system Open System = No one owns the rights to the hardware configuration that makes up a Windows computer. Good Bad

17. Macintosh OSX runs a closed system Closed system = Apple owns the rights to the hardware configuration of an Apple computer (Macintosh) Good Bad

18. Why is Chrome OS starting to catch on? Open system: –Cheap –Google make money on your data

19. Evolution of the operating system interface Douglas Engelbart

20. New user interfaces?