Artificial Intelligence and Computer Science Exam Notes

Artificial Intelligence and Computer Science Exam Notes

Introduction to Artificial Intelligence

  • Artificial Intelligence (AI) is the simulation of human intelligence processes by machines, especially computer systems.
  • It involves learning, reasoning, problem-solving, perception, and language understanding.
  • We are all part of the AI revolution, reflecting on its impact on individual and societal levels.

Marks Distribution

  • Assessment Breakdown:
    • Quiz:
    • Marks: 4
    • Frequency: 3.5
    • Total Marks: 14
    • Assignment:
    • Marks: 4
    • Frequency: 4
    • Total Marks: 16
    • Mid Term:
    • Marks: 1
    • Total Marks: 30
    • Final:
    • Marks: 1
    • Total Marks: 40
    • Overall Total Marks: 100

Class Rules

  • Mobile Phones: Not allowed during class.
  • Attendance: Late comers can attend but won't be marked present.
  • Food Policies: Eating during class is prohibited.
  • Assignments: Late submissions will not be accepted.
  • Quizzes/Assignments: Announced in advance; no retakes allowed. Missing will be scored as zero.
  • Academic Integrity: Both parties will receive zero for any copied work.

Fundamentals of Programming

Basic Introduction to Computers
  • Computers are programmable electronic devices that:
    • Accept data
    • Perform prescribed operations rapidly
    • Display results effectively.
What Does a Computer Do?
  1. Input: Accepts data and instructions.
  2. Processing: Executes the instructions.
  3. Output: Displays the processed results.
  4. Storage: Saves data temporarily or permanently.
Hardware Components
  • Central Processing Unit (CPU): The brain of the computer, which includes:
    • Control Unit (CU): Directs data flow.
    • Arithmetic Logic Unit (ALU): Performs calculations and logic operations.
  • Main Memory (RAM): Temporary storage location for executing programs and data.
Computer Organization
  • Six Logical Units:
    • Input Unit
    • Output Unit
    • Memory Unit
    • Arithmetic/Logic Unit
    • Central Processing Unit
    • Secondary Storage Unit
Operating System (OS)
  • An OS is software that:
    • Communicates with hardware
    • Manages resources
    • Allows programs to run.
  • Services Provided by OS:
    • Memory Management
    • I/O Operations
    • Program Execution

Computer Program

  • A computer program is a complete set of instructions for a computer to complete a task.
  • Programming: The process of developing these instructions using a programming language.
Programming Languages

Three Types:

  1. Machine Languages:
    • Composed of 0s and 1s (binary).
    • Example: 11110100.
  2. Assembly Languages:
    • Uses human-readable symbols (e.g., LOAD, STORE).
    • Translated to machine language using assemblers.
  3. High-Level Languages:
    • Closer to human language.
    • Examples: C/C++, Java, Python.
Programming Paradigms
  1. Procedural Programming: Follows a sequence of steps systematically (e.g., C, FORTRAN).
  2. Structured/Modular Programming: Breaks problems into smaller, manageable modules; easier to test and debug.
  3. Object-Oriented Programming: Organizes code into objects that contain both data and methods.

Flowcharts

  • Used to visually represent algorithms and program logic.
  • Symbols in Flowcharts:
    • Oval: Start/End
    • Parallelogram: Input/Output
    • Rectangle: Process
    • Diamond: Decision point (if-then-else).
    • Flow Line: Direction of flow between steps.
Example Flowcharts

  1. Adding Four Marks:

    • Marks: M = E, M, P, C
    • Flow: Start ➜ Add = E + M + P + C ➜ Print Add ➜ End

  2. Calculating Average Marks:

    • Flow: Start ➜ Avg = (E + M + P + C) / 4 ➜ Decision ➜ Print "Pass" or "Fail" ➜ End

C++ Programming Language

  • Developed from C language to support Object-Oriented approach.
  • Standard Library provides reusable functions and classes.
  • Basic structure of a C++ program includes:
#include <iostream>
using namespace std;
void main() {
 cout << "Hello World" << endl;
}
Program Explanation
  • Header File: #include <iostream> - includes I/O functions.
  • Namespace: using namespace std; - avoids naming conflicts in code.
  • Main Function: where program execution begins; can return void or an integer.
  • Output Statement: cout << "Hello World" << endl; – displays output to the console.

Conclusion

  • Mastering programming concepts, flowcharts, and languages is essential for a robust understanding of computer science and AI. Familiarize with practical coding skills and theoretical knowledge to excel in exams.