Summary

• Description:

  The MS Word document comprises LANJET Computer Studies Paper 1 2026 Pre-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 LANJET Computer Studies Paper 1 examination.

  This exam assesses theoretical computer science concepts including computer hardware, system analysis and design, algorithm formulation, networking topologies, and binary arithmetic.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 100 Marks
  • Number of Questions: 20 Questions (Questions 1 – 20)
  • Structure:
    • Section A (40 Marks): Questions 1 – 15 (Compulsory short-answer questions)
    • Section B (60 Marks): Question 16 compulsory (15 marks) and any other three questions from Questions 17 – 20 (15 marks each)

  It covers the following topics:

  • Section A:
    • Computer generations (software differences between 2nd and 3rd generation systems)
    • Computer laboratory environment and ventilation management
    • Data representation (decimal fraction to binary conversion)
    • Computer security and antivirus safeguards
    • Desktop publishing graphic transformations and output devices (line vs. page printers)
    • Emerging technologies (virtual reality) and email client features (Inbox vs. Draft)
    • Input hardware (keyboard toggle keys) and data processing errors (transposition vs. transcription)
    • Electronic Point of Sale (EPOS) components and Uninterruptible Power Supply (UPS) functions
    • Word processing formatting (page breaks vs. column breaks) and operating system selection factors
    • Data communication signals (analogue vs. digital)
  • Section B:
    • Program development (algorithm dry running, algorithm properties, pseudocode and flowchart design for computing sum and average)
    • System development lifecycle (consequences of incorrect requirement specifications, direct changeover challenges, intranet benefits, and coaxial cable anatomy)
    • Computer networks and data management (bus topology characteristics/disadvantages, desktop publishing graphic sourcing, spreadsheet formula interpretation using COUNTIF/SUMIF, database data types)
    • User interfaces, data arithmetic, and hardware maintenance (graphical user interface features, keyboard key functions, two's complement binary subtraction, computer drives vs. drivers, PS/2 and USB ports, hardware specifications interpretation, e-commerce, and malware infection symptoms)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  COMPUTER STUDIES
• Posted By:

  Caleb_Peter

Enter your details below to initiate a payment using MPESA.