SSS 2 Computer Notes

SSS Two Computer Studies/ICT

SSS Two Computer Studies/ICT

Lesson Notes have been prepared in the following SSS 2 key topics. Click any topic to read the full note.

Computer Files

  • What files are and how data is represented and stored.
  • Basic data units and how devices handle them.
CLICK HERE FOR THE FULL NOTE

Mastering Your Data (Handling Computer Files)

  • Create, delete, retrieve, copy, view, and update files confidently.
  • Practical file management tips for students.
CLICK HERE FOR THE FULL NOTE

Word Processing

  • Meaning of word processing and word processors.
  • Common features and application areas.
CLICK HERE FOR THE FULL NOTE

Spreadsheets

  • Cells, rows, columns, and basic operations.
  • Uses in budgeting, analysis, and reporting.
CLICK HERE FOR THE FULL NOTE

The Central Processing Unit (CPU)

  • Roles of the Control Unit, ALU, and registers.
  • How instruction cycles drive computer operations.
CLICK HERE FOR THE FULL NOTE

The Memory Unit

  • Primary vs. secondary memory; units of storage.
  • Comparing auxiliary storage by speed, size, and tech.
CLICK HERE FOR THE FULL NOTE

Logic Circuits I (Standard Single Logic Gates)

  • AND, NOT, OR gates: symbols, truth tables, and uses.
  • Relating Boolean expressions to gate behavior.
CLICK HERE FOR THE FULL NOTE

Logic Circuits II (Alternative Logic Gates)

  • NAND and NOR: symbols, truth tables, and equations.
  • Building simple comparators and more complex logic.
CLICK HERE FOR THE FULL NOTE

Computer Data Conversion

  • Registers, addresses, and buses—what they do.
  • Fetch–execute cycle and factors affecting data transfer speed.
CLICK HERE FOR THE FULL NOTE

System Development Life Cycle (SDLC)

  • Stages: preliminary & feasibility study, analysis, design, implementation, maintenance, review.
  • Activities and goals of each stage.
CLICK HERE FOR THE FULL NOTE

Program Development

  • Qualities of good programs: accuracy, readability, maintainability, efficiency.
  • Steps: problem definition, analysis, design, flowcharting, desk checking, etc.
CLICK HERE FOR THE FULL NOTE

Algorithms and Flowcharts

  • Definitions, characteristics, and common symbols.
  • Writing algorithms and drawing flowcharts for typical tasks.
CLICK HERE FOR THE FULL NOTE
>

BASIC Programming II (Built-in Functions)

  • Using SQR, INT, SIN, ABS and more.
  • Short programs to calculate values and plot simple curves.
CLICK HERE FOR THE FULL NOTE

Internet

  • Key terms: browser, download/upload, protocol, cyberspace.
  • Common services: WWW, email, discussion groups, video conferencing, FTP.
CLICK HERE FOR THE FULL NOTE

Electronic Mail (E-mail)

  • Meaning of email and common services.
  • Creating an account, composing & sending messages, attachments, pros & cons.
CLICK HERE FOR THE FULL NOTE
© 2025 CMPNOTE • SSS Two ICT Notes — All Rights Reserved

Comments

  1. what of the third term scheme we did this is our first term

    ReplyDelete
  2. Pls, the note under program development is not opening?

    ReplyDelete
    Replies
    1. Resolved. Thanks for bringing it to my attention

      Delete
  3. Pls the note for CPU is not opening

    ReplyDelete
  4. Please the notes on logic circuit is not opening

    ReplyDelete
  5. Resolved. Thanks for bringing it to my attention

    ReplyDelete
  6. Im very excited to see this website... Thank you for this you. Save me a lot of stress... Please 🙏🙏 can you add Data processing materials

    ReplyDelete
    Replies
    1. Thanks for your kind words. Working on data processing

      Delete
  7. I really do not understand you

    ReplyDelete
  8. There is no java console input 1 and 2

    ReplyDelete
  9. There is no java control statement 1 and 2 also what happened 😳.

    ReplyDelete

Post a Comment

Popular posts from this blog

90 Objective Examination Questions in Major Subjects

Complete Computer Studies/ICT Curriculum for JSS 1 to SSS 3

JSS 3 Objective Questions and Answers in Computer studies