Summary

• Description:

  The MS Word document comprises CEKENAS Computer Studies Paper 1 2026 Pre-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 CEKENAS Form 4 Computer Studies Paper 1 theory examination covering fundamental concepts in computer hardware, software, networking, programming, and system development. Perfect for KCSE theory revision, this comprehensive paper is available for PDF download with marking scheme answers.

  • Month Administered: March 2026
  • Duration: 2 ½ Hours
  • Total Marks: 100 Marks
  • Number of Questions: 20 (Questions 1–20)
  • Structure: Section A (40 marks, compulsory short-answer Questions 1–15) and Section B (60 marks, compulsory programming Question 16 [15 marks] plus choice of three questions from 17–20 [15 marks each]).

  It covers the following topics:

  • Section A
    • Desktop Publishing tools (Crop tool, Hand tool, Master page functions)
    • Storage technology evolution (Magnetic tapes vs. modern storage, Solid State Devices advantages)
    • Computer acronyms (IRG, EEPROM)
    • Internet services (Cloud storage, Video conferencing)
    • Keyboard functionality (Tab key, Esc key)
    • Hardware ports (HDMI, Ethernet ports)
    • Operating Systems (Multitasking vs. Multiprocessing)
    • ICT integration in education & teacher competency requirements
    • Expansion interfaces (IEEE 1394 / FireWire vs. USB)
    • System utility tools (Disk defragmentation)
    • Database management systems (Hierarchical database model, Macros function)
    • Word processing & paragraph formatting (Line spacing, Justification, Mail merge advantages)
    • Data capture devices (OCR vs. OMR differences)
    • Internet & email architecture (Domain structure parsing)
    • Embedded computer systems and real-world examples
  • Section B
    • Computer programming (High-level languages vs. low-level languages, pseudocode analysis, flowchart design)
    • Data representation and binary arithmetic (Byte, Word, Word length calculations, binary addition, binary subtraction, Two's complement arithmetic, number base conversions)
    • Computer security, data processing files, and spreadsheet formulas (Hacking impacts, master file protection, data loss prevention, cell referencing, Net pay formulas, locked cell formatting, ranking functions)
    • Data processing, errors, and System Development Life Cycle (Data processing errors, data validation checks, corrective maintenance, SDLC stages from problem identification to implementation)
    • Data communication, networking, and security (Bandwidth, multiplexing, modulation, transmission modes simplex/half-duplex/full-duplex, network transmission impairments, firewalls, VPNs, encryption)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  COMPUTER STUDIES

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