ISU AND YOUTHBUILDBRYAN HOSACK

12/07/2011

Introduction to Computing

Bryan Hosack, Ph. Dwww.itk.ilstu.edu/faculty/bhosack/

Introductions http://en.wikipedia.org/wiki/TRS-80 http://www.legocomputer.com/

Who likes computers?!? Who likes solving problems? Do you like math and science? I did and I ended up with a job I love!

Careers http://www.techi.com/2011/11/can-stem-fix-

america/

Today’s outline

• Who am I and Why am I here• Why computers?• History of the computer• Hardware• Software• Where do we go from here?!?

Why computers?

What do you think?

How do you use a computer?

How do I use a computer?

What else can we do with a computer?

History of the Computer (1)

What is a computer?

Early computershttp://en.wikipedia.org/wiki/History_of_computing_hardware

Turing machines

History of the Computer (2)

ENIAC and friends

Early business computers

PC revolutionhttp://www.youtube.com/watch?v=tmRJ649ICPU&feature=related

Mobile devices today

What’s in a Computer?

Components Vacuum tubes, transitors and chips

http://en.wikipedia.org/wiki/Semiconductor_chip

Boards Internal Devices

External Devices

Let’s tear one down!

Software

The OS

Large applications

Productivity applications

Examples include …

Software (2)

Games

Mobile apps

The Web

What’s Next?!?

Basic computer use

Programming

Field trip to ISU?!?

Want these slides go to:www.itk.ilstu.edu/faculty/bhosack/files/YBw1-

Intro.ppt