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EC-504 (B) RGPV B.Tech

Computer System Organization (CSO)

Previous year papers and the official syllabus are free to read, no account needed.

Previous Year Papers

4 papers, latest Jun 2025

Free
See all 4 papers

Syllabus, notes and important questions for EC-504 (B)

Syllabus units

Topics as the official RGPV syllabus lists them.

Unit 1 COMPUTER BASICS AND CPU 15 topics
  • Von Neumann model
  • Various subsystems
  • CPU
  • Memory
  • I/O
  • System Bus
  • CPU and Memory registers
  • Program Counter
  • Accumulator
  • Instruction register
  • Micro operations
  • Register Transfer Language
  • Instruction fetch, decode and execution
  • Data movement and manipulation
  • Instruction formats and addressing modes of basic computer
Unit 1 notes
Unit 2 CONTROL UNIT ORGANIZATION AND ARITHMETIC AND LOGIC UNIT 11 topics
  • Hardwired control unit
  • Micro‑ and nano‑programmed control unit
  • Control memory
  • Address sequencing
  • Micro‑instruction formats
  • Micro‑program sequencer
  • Microprogramming
  • Arithmetic processor
  • Addition, subtraction, multiplication and division
  • Floating‑point and decimal arithmetic
  • Design of arithmetic unit
Unit 2 notes
Unit 3 INPUT OUTPUT ORGANIZATION 8 topics
  • Program‑controlled, interrupt‑driven and DMA data‑transfer modes
  • Interrupt structures
  • I/O interface
  • Asynchronous data transfer
  • I/O processor
  • Serial and parallel data transfer
  • Synchronous and asynchronous transmission
  • Simplex, half‑duplex and full‑duplex communication
Unit 3 notes
Unit 4 MEMORY ORGANIZATION 6 topics
  • Memory maps
  • Memory hierarchy
  • Cache memory organization and mapping
  • Associative memory
  • Virtual memory
  • Memory management hardware
Unit 4 notes
Unit 5 MULTIPROCESSORS 5 topics
  • Pipeline and vector processing
  • Instruction and arithmetic pipelines
  • Vector and array processors
  • Interconnection structures
  • Inter‑processor communication
Unit 5 notes
Read the full syllabus

Exam insights

Counted from 4 past EC-504 (B) papers.

Marks asked per paper, by unit

  • Unit 1 COMPUTER BASICS AND CPU 24 marks
  • Unit 2 CONTROL UNIT ORGANIZATION 24 marks
  • Unit 3 INPUT OUTPUT ORGANIZATION 21 marks
  • Unit 4 MEMORY ORGANIZATION 21 marks
  • Unit 5 MULTIPROCESSORS 12 marks

Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.

Asked again and again

  1. Explain the Von Neumann model of a computer system, its components with diagram, and how it handles instruction and data processing.

    Asked 4 times: 2025, 2024, 2023, 2020

  2. Explain the instruction cycle and its fetch, decode and execute phases, with flowchart/steps and significance.

    Asked 3 times: 2025, 2024, 2023

  3. Differentiate / compare hardwired control unit vs microprogrammed control unit

    Asked 3 times: 2025, 2024, 2022

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