Lecture 1: Understand Computers: Yesterday,

Today, and Tomorrow

!

Dr. Ahmed Eltahawy

Email: a.othman@ci.suez.edu.eg

ahmedeltahawy.weebly.com

A little history - In the 1980s

Only the U.S. government and large universities were able to access the Internet—including e-mail.

Cell phones were just coming into use.

 

A little history - In the 1980s

Fax machines were the fastest way for most businesses to share documents across distances.

The World Wide Web would not become viable until 1993.

Computer TodayMillions of people use the Internet

professional and personal lives.

Cell phones, and laptop computers are a vital component of daily mobile life.

Computer TodayGPS units are in use for traveling.

!

Retail e-commerce

did not begin until 1995,

had sales of $32 billion in 3rd quarter of 2009,

is projected to grow to $203 billion by 2013.

In the Future

The more you understand and learn about computers, the less confusing they will seem.

This more understanding will prepare you to make technology-related decisions.

Table Top-Computer

Computer Applications and Technologies

Word processor: An application used to create documents and automatically check spelling and grammar in a document

Internet: A connected system of computers used to search for information

Computer Applications and Technologies

Online banking: An Internet application provided by a bank to conduct banking operations via the Internet

Online classes: Instruction offered over the Internet, using learning management software

GPS (Global Positioning System): Computing devices that provide driving directions from a current location to a destination entered

ATM: Automatic teller machine enabling financial transactions in public places

Computer Applications and Technologies

Identify Computer Fundamentals

Identify Computer Fundamentals

A computer is a electronic device that performs the four basic operations that comprise the information processing cycle (IPOS):

Input,

Processing,

Output, and

Storage

Identify Computer Fundamentals

Input:

The action of entering data. Keyboard

Processing

The manipulation of the input data

Identify Computer Fundamentals

Output:

The display of the information. Speakers

Strorage

Saving information for later use

Floppy Disk

Identify Computer Fundamentals

Computer system: Collection of related components (hardware and software) that work together to accomplish a task

Hardware: Physical components of the computer and its related devices

Software: Programs that enable the computer’s hardware to run the application software

Computer Components