Introduction to Computers Chapter 1, Lecture 1

To compute = To calculate Generally

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

They can become this powerful!!!

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

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.

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

Computer System Overview

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

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

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

Open> Some videos

To be continued…