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 Action Application 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..