1. INTRO TO COMPUTING

2. Looking Inside Computer 2Computing 2 | Lecture-1 Capabilities Can Read Can Write Can Store A/L Operations Automation

3. ALGORITHM COMPUTER ABSTRACTION PROBLEM human being microprocessor 3Computing 2 | Lecture-1 INPUT OUTPUT

4. Algorithm Sum the integers from 1 to N sum 0; x 1; while x ≤ N do sum sum + x; X x + 1; end while print sum;

5. Algorithm Sum N numbers in a list (or array) named values sum 0; index 0; while index < N do sum sum + values[index ]; index index + 1; end while print sum;

6. PRINCIPLES OF COMPUTATION Computing is no more about computers than astronomy about telescope. Computing is the study of natural and artificial information processes. It is predicted that by 2100 about 500(BP) buy enough computing power to compute 1,(25 -0) instruction per second. This power is more than the computing power of the brains of the entire population of the planet. (Dijkstra)

7. What are computers Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instruction.

8. WHAT IS COMPUTATION The act or process of calculating or determining something by mathematical, logical or interactive methods using computers

9. COMPUTABILITY The act or process that measures what can or can not be computed

10. WHAT IS COMPUTING The study of natural and artificial information processes Computing is also the study of how to compute i.e. process of computation

11. CURRENT FIELDS OF COMPUTING Nanocomputing DNA computing Artificial Intelligence Nature-inspired computing Quantum computing

12. Artificial Intelligence A branch of computing that studies the use of computers to perform computational processes normally associated with human intellect

13. ALGORITHMS A description independent of any programming language of a process that achieve some task. One algorithm may be implemented in many different languages in many different ways in many different programs. And algorithm is run on a computer by translating it into a sequence of computer instructions. These computer instructions are the programs that run on computer. Step by step procedure for solving a problem

14. Algorithms What does a computer know how to do? Computers are electronic devices that react to voltage on wires. At this bottom level, the computer only “Knows” about voltages which, for convince, we interpret as numbers it is the program running on the computer that interprets the number as characters, which can be interpreted in collection such as a web page.

15. SIGNIFICANCE OF ALOGRITHM Algorithms should be Fastest Shortest Least amount of space Computability - Problem solving Accurate

16. PURPOSE OF ALGORITHMS To communicate a computation to humans not to computers

17. TRAVELLING SALESPERSON PERSON PROBLEMS C G E A D B F 120 70 30 110 70 100 40 50 70 80 90 Is there a route that takes the salesperson through every city and back to the starting city A at the cost of no more than 520 £ ?

18. PROGRAMS Description in a programming language of a process that achieve some useful results Program P(I); Write (I*2); End.

19. PRINCIPLES OF COMPUTATIONS Abstraction Automation

20. ABSTRACTION Right level for thinking about a particular problem To simply communicate complex ideas To Logically decompose problems

21. AUTOMATION The technique, method, or system of operating or controlling a process by highly automatic means, as by electronic devices, To automate a algorithm