Three Important Concepts CS101 Three Important Concepts

Concept 1: Your Computer is Stupid! However, it is getting smarter, and it talks to computers that are getting smarter! Cognitive Computing

Concept 2: To be a computer a device must do four things. Input Information Input Devices Process Information Processor Output Information Output Devices Store Information Storage Devices

Here is is… https://www.youtube.com/watch?v=0anIyVGeWOI

Concept 3: Information needs to be in form of zeros and ones for a computer to process it. Information must be in the form of zeros and ones because the processor is make up of switches. Intel and Advanced Micro Devices are the two types of processors found in most personal computers Switches in processor have two states: On and Off Off = 0 On = 1

Four Generation of Processors When they figure out how to make processors in a different way that makes the processors faster, cheaper, smaller, and more reliable a new generation of processors is born.

First Generation 1939 –1956 Vacuum tubes

Second Generation 1956 –1963 Transistors

Third Generation 1964 – 1971 Integrated Circuit

Forth Generation = 1971 - present Silicon Microprocessor

Fifth Generation? http://www.engadget.com/2015/07/26/single-molecule-transistor/#continued Quantum Computing How Quantum Computing Works

Under 70 years from.. 18,000 switches in a room, failure every day, 120,000 watts, 3 computers in the world To Billions of switches on multicore chips, failures are rare, 10 - 25 watts, hundreds of processors in your daily life.