SS2 ICT Lesson NotesFIRST TERM1. Arithmetic and logic unit and Control unit2. Function of ALU and CU3. Primary Memory (Main Memory)4. Secondary Memory (Auxiliary Memory)5. Differences between primary and secondary memory6. Conversion from one unit to the other7. Comparison of auxiliary storage devices.8. Definition of logic gate9. Types of logic gates10. Input and output signals for AND, NOT, OR gates.11. Equation for AND, NOT, and OR gates.12. Uses of logic gates13. Alternative Logic GatesSECOND TERM1. Types of alternative logic gates2. Input/output signals3. Truth table construction and equation for: NAND, NOR gates4. Uses of Logic Gates:5. Definition of Computer Data Conversion6. Types of registers7. Function of Each Register and Main Memory8. Differences between register and main memory9. Factors affecting speed data transfer10. Definition of Computer Files11. Types of Data Items12. File Structure Organization13. Type of file organization14. Methods of Accessing Files15. Classification of Files:16. Basic operation on computer files17. Steps involved in creating sequential file18. Basic file processing19. Effect of file insecurity20. Methods of File Security21. Difference between computer files and manual files22. Advantages of computerized files23. Limitations of computerized filesTHIRD TERM1. Definition of an algorithm2. Characteristics of Algorithms3. Functions of Algorithms4. Definition of flowcharts5. Writing algorithm for solving a given problem.6. Flow chart symbols7. Basic Programing: Built-in functions8. Purposes Of Built-In Functions9. Writing a basic program 10. Definition of the internet 11. Definition of some computer internet terms12. Main browsers13. Features in the Main Browsers14. Internet services15. Definition of terms16. Steps Involved in Operating a Mailbox17. Steps Involved in Creating an E-mail Account18. Features in an e-mail address19. Definition of Charting