1. Introduction to Computers
Chapter 1, Lecture 1

2. To compute = To calculate
Generally

3. How do YOU compute or calculate?
It all starts with numbers.

4. Tools to aid with calculation – The Brain
Do you use or have used any of these?

5. Tools to aid with calculation – The Digits
Do you use or have used any of these?

6. Tools to aid with calculation – Coffee Beans?
Do you use or have used any of these?

7. Tools to aid with calculation – The Abacus
Do you use or have used any of these?

8. Tools to aid with calculation – Math Tables
Do you use or have used any of these?

9. Tools to aid with calculation – The Slide Rule
Do you use or have used any of these?

10. Tools to aid with calculation – Calculators*
Do you use or have used any of these?

11. An Old Desktop Computer (PC)
Is this your idea of a computer?

12. A Modern Laptop Computer (Notebook)
Is this your idea of a computer?

13. A Modern Palmtop Computer
Is this your idea of a computer?

14. One of the Early Computers (the Eniac)
Is this your idea of a computer?

15. A Watch???
Is this your idea of a computer?

16. A question… How smart are computers? The answer… Very smart Average
Stupid
None of the above
The answer…
Computers are stupid => we are the ones that tell them what to do.
Huh???
You will understand, soon.

17. They can become this powerful!!!

19. COMPUTING - A formal definition
any goal-oriented activity requiring, benefiting from, or creating computers.

20. COMPUTING - A formal definition
includes designing and building hardware and software systems for a wide range of purposes;
processing, structuring, and managing various kinds of information;
doing scientific studies using computers;
making computer systems behave intelligently;
creating and using communications and entertainment media;
finding and gathering information relevant to any particular purpose, and so on.
The list is virtually endless, and the possibilities are vast.

21. And what is a ‘COMPUTER’?
A computer is a machine that manipulates data according to a set of instructions called a computer program.

22. Computer System Overview

23. The Components of a Computer
What are common computer hardware components?
system unit
PC camera
speaker
printer
speaker
monitor
keyboard
modem
scanner
mouse
digital camera
microphone

24. The Components of a Computer
What is an input device?
Any hardware component that allows a user to enter data and instructions into a computer
microphone
PC camera
keyboard
mouse
scanner
digital camera

25. The Components of a Computer
What is an output device?
Any hardware component that can convey information to a user
monitor
speakers
printer

26. Open>
Some videos

27. To be continued…