Predictions …

• Thomas Watson, the founding father of IBM, declared in 1943 that the world would not need more than FIVE computers!

PARADIGM SHIFT

• Agricultural Class

• Industrial Revolution –Industrial Age

• Information Age

In the words of a science fiction author….

• Anything that is in the world when you were born is normal and ordinary and is just a natural part of the way the world works.

Fantastic!!

• Anything that’s invented between when you are fifteen and thirty five is new and exciting and revolutionary and you can probably get a career in it.

Too settled for a change..

• Anything invented after you are thirty-five is against the natural order of things

Transition

• Microprocessor

• Integrated Circuits

• Transistors

• Vacuum Tubes

Integrated Circuits

Reliability

Size

Speed

Efficiency

Cost

Microprocessor

• A single silicon chip containing all of a computer’s computational components

San Jose

• Silicon Valley – dozens of semiconductor manufacturing companies mushroomed

Computers today

• A brief taxonomy

Types and kinds

Computers…

Desktops,Workstations

Laptops,Notebooks

Sub-notebooks,Personal Digital

Assistants

Embedded systems

• Toys

• Watches

• Stereos

• Oven

• Washing machines

• All have a microprocessor implant

MAINFRAMES

• (Today they are the heroes behind the scenes!!)

• Key feature – TIMESHARING

SUPER COMPUTERS

• Key feature – COLLABORATING with thousands of MICROPROCESSORS

Digital Technology in ActionApplication Programs

• Network Application• Word processing and DTP• Spreadsheets and number-crunchers• Databases• Computer Graphics and Digital images• Multimedia• Entertainment• Customized applications• AI

Ethics?

• Personal privacy at threat

• High-tech crime

• Intellectual Property

• Dehumanization

• Abusing information for political power

• Bio digital Technologies

What do computers do?

• Receive Input

• Process Information

• Produce Output

• Store information

Bit Basics..

• Difference between data and information

• Bits – Binary Digits – Binary numbering system

• ASCII code

• BYTES and NIBBLES

• Kilo,Mega,Giga,Tera,Peta

Computer Memory

• RAM & ROM

• Volatile and Non-volatile

• Types of ROM

• PROM

• EROM

• EEPROM

Buses and ports

Transportation

• Connect peripherals to the motherboard

• 32 bits and 64 bits – multi lane

• Connect to bays and expansion slots

PC Cards

• PCMCIA –People Can’t Memorize

• Computer Industry Acronyms

• Personal Computer Memory Card International Association

How fast are you?

• Speed – fetch execute cycle..