Summary

• Description:

  The MS Word document comprises Mmalina Trial 2 Computer Studies Paper 1 2026 Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Computer Studies 451/1 examination.

  This examination evaluates candidates' grasp of computer systems architecture, software concepts, systems analysis and design, number systems, programming logic, data security, and emerging computing technologies. It equips candidates with the requisite theoretical skills needed for KCSE Computer Studies Paper 1.

  • Month Administered: July 2026
  • Duration: 2 Hours 30 Minutes
  • Total Marks: 100
  • Number of Questions: 20 (Questions 1 - 20)
  • Structure: Section A (40 marks, questions 1-15, compulsory short-answer questions) and Section B (60 marks, question 16 compulsory, followed by four optional questions where candidates answer any three).

  It covers the following topics:

  • Section A
    • Computer architecture: Processor components, memory types (registers vs cache), and computer generations
    • Operating systems: Human-computer interfaces, troubleshooting, warm booting, and disk partitioning
    • Storage and media: Secondary optical storage (CD-ROM vs CD-RW) and cloud storage benefits/drawbacks
    • Application software: Database field properties and form controls, desktop publishing types, and word processing layout tools
    • Data processing: Data verification and validation error types and error control methods
  • Section B
    • Programming and algorithm development: Loop control structures (pre-test vs post-test), pseudocode, and flowchart trace tables
    • Systems analysis and design: Information systems, soft vs hard systems, data gathering techniques, and flowcharting methods
    • Emerging technologies and maintenance: Virtual reality applications and computer maintenance procedures
    • Data representation: Signed magnitude, one's and two's complement representations, hexadecimal conversions, and binary arithmetic
    • Networking and internet: Database integrity constraints, transmission media (fibre optics), hybrid network topologies, and network security concepts
    • Spreadsheets: Cell formulas, worksheet functions, and data types
• File Size:

  185.82 KB
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Computer Studies
• Posted By:

  Caleb_Peter

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