Ordinary level 2026 North west regional mock computer science guide

Ordinary level 2026 North west regional mock computer science guide

Ordinary level 2026 North west regional mock computer science guide

Here is the final section of the revision data extracted from the marking guide, formatted for your WordPress post.


SECTION B: SYSTEMS & PROGRAMMING CONCEPTS

1. Operating Systems and Storage Media

  • Operating System (OS): System software that manages hardware and software resources.

  • Core Functions:

    • Memory management

    • Process management

    • File management

    • Device management

Storage Classification Table:

Memory Technology Method of Accessing Data
Magnetic Tape Magnetic Sequential
Flash Drive Solid State Random
Solid State Drive Solid State Random
CD-RW Laser (Optical) Random

2. Software Applications and Data Processing

  • Software Examples:

    • Calculation & Recalculation: Spreadsheet software like MS Excel.

    • Certificate Design: Graphic or Desktop Publishing software like Photoshop or MS Publisher.

  • The Information Processing Cycle:

    • Input: Getting data into the system for processing.

    • Processing: Transforming raw data into useful information.

    • Output: Conveying processed data to other units or the user.

    • Storage: Saving data for future use.


3. Cloud Computing Benefits

  • Definition: On-demand services provided over the internet.

  • Advantages:

    • Storage: Large storage space, removing the need to carry external hard drives (e.g., Google Drive, Dropbox).

    • Processing Power: Access to high-performance servers for complex tasks.

    • Collaboration: Real-time document sharing and editing.


4. Programming Fundamentals

  • Source Code vs. Object Code:

    • Source Code: A program written in a high-level language by a programmer.

    • Object Code: The machine-executable instructions generated when source code is compiled.

  • Program: A set of instructions written in a particular programming language to perform a specific task.


Category: Computer Science / GCE Revision

Tags: #Programming #OperatingSystems #CloudComputing #DataProcessing #Mock2026

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