1. Three Important Concepts
CS101
Three Important Concepts

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

3. 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

4. Here is is…

5. 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 = On = 1

6. 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.

7. First Generation 1939 –1956
Vacuum tubes

8. Second Generation 1956 –1963
Transistors

9. Third Generation 1964 – 1971
Integrated Circuit

10. Forth Generation = 1971 - present
Silicon Microprocessor

11. Fifth Generation?
Quantum Computing
How Quantum Computing Works

12. 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, watts, hundreds of processors in your daily life.