Summary

• Description:

  The PDF document comprises The Elites Jet Computer Studies Paper 1 2025 Mock Exam with Marking Scheme.

  It is a 451/1 Computer Studies Paper 1 (Theory) Pre-Mock March 2025 examination.

  • Duration: 2½ Hours
  • Total Marks: 100
  • Number of Questions: 20 (Section A: Questions 1–15; Section B: Questions 16–20)
  • Paper Structure: Two sections (A and B); answer all questions in Section A, then answer Question 16 and any other THREE questions from Section B.
  • Marking Scheme: The marking scheme is in a different document.

  It covers the following topics:

  • Computer start-up and firmware (BIOS and firmware concepts)
  • Computer laboratory safety (actions during fire outbreaks)
  • Operating systems and utilities (taskbar components, memory management, disk partitioning/formatting/defragmentation, security, user interfaces)
  • Power and hardware support (UPS functions; printer troubleshooting)
  • E-commerce (obstacles to online trade)
  • Word processing (insert vs type-over modes)
  • Data representation (file extensions; bits/bytes/nibbles/words; binary conversions; one’s and two’s complement; hexadecimal conversion)
  • Algorithms and programming (algorithm for area of a circle; dry running; flowcharts and pseudocode; language translators; stages of program development cycle)
  • Data processing and file organisation (indexed sequential vs direct access; centralized vs distributed processing; factors for selecting processing modes)
  • Spreadsheets (basic data types; COUNTIF/SUMIF-style formulas; applications; charts: data range, legend, and axis)
  • Desktop publishing (definition and types of DTP software)
  • Storage and media (how data is represented on optical media)
  • Communication and networking (repeaters and hubs; bus topology components; transmission impairments; data encryption; program patches; motivations for networking)
  • ICT in real-world systems (use of GPS in air traffic control)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  COMPUTER STUDIES

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