Summary

• Description:

  The MS Word document comprises RCEA JOINT Computer Studies Paper 1 2026 Mock Exam with Answers (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 Paper 1 theory mock examination assessing technical and theoretical competencies in computing. It covers computer laboratory safety, hardware architecture, binary arithmetic, data integrity, networking topologies, programming logic, system development, and data security ethics.

  • 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 algorithm question, plus any three choices among Questions 17–20).

  It covers the following topics:

  • Section A
    • Computer laboratory safety: dust minimization and UPS switching sequence
    • Computer system architecture: central processing unit (CPU) components (ALU, Control Unit, Registers)
    • Data representation: binary addition and binary-to-decimal conversion
    • Data processing errors: transcription errors (substitution and transposition)
    • Data integrity definitions and enhancement strategies
    • Spreadsheet functions: distinguishing COUNT from COUNTIF
    • Hardware requirements for video conferencing
    • Network devices: functions of repeaters, routers, and bridges across OSI layers
    • Systems analysis: technical documentation versus user documentation
    • Social and organizational issues: employee resistance to computerized systems
    • Internet concepts: sign in, sign up, surfing, and search engines
    • System software: functions of a programming compiler
    • E-learning challenges in Kenyan educational institutions
    • Careers in ICT and software suites (MS Office programs)
    • System flowcharts versus program flowcharts
  • Section B
    • Programming: first-generation languages (machine code), pseudocode design, and program flowchart development for sentinel-controlled loops
    • Internet and networking: mail servers vs. clients, URLs, hypermedia terminology, FTP, web browser roles, and email interfaces
    • Local Area Network design: physical vs. logical topologies, peer-to-peer networks, communication media, and fiber optic cabling limitations
    • Data security and privacy: data integrity threats, spyware vs. antispyware, biometric authentication, and data protection legislation
    • Storage devices and memory: storage conversion calculations (GB to MB), registers vs. buffers, magnetic disk limitations, and flash memory characteristics
• File Size:

  30.06 KB
• Length:

  9 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Computer Studies
• Posted By:

  Caleb_Peter

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