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BCA-207N · Computer Organization and Architecture
Unit 5

Parallel Processing, Pipelining & Multiprocessor Systems

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Unit 5 Learning Hub

Parallel Processing, Pipelining & Multiprocessor Systems

Official MJPRU BCA Unit 5: Parallel Processing, Pipelining & Multiprocessor Systems for BCA-207N (Computer Organization and Architecture).

Syllabus Topics:Parallel Processing Concept: Concurrent Data Processing, Spatial vs Temporal ParallelismFlynn's Hardware Classification: SISD (Single Instruction Single Data), SIMD (Vector/Array Processors)Flynn's MISD (Multiple Instruction Single Data) and MIMD (Multiple Instruction Multiple Data / Multiprocessors)Pipelining Fundamentals: Overlapping Execution Stages, Industrial Assembly Line AnalogySpace-Time Diagram for Pipelining: Segment Clock Cycles, Throughput Evaluation, LatencyPipelining Metrics: Speedup Ratio S_k = (n * t_n) / ((k + n - 1) * t_k), Efficiency, Maximum Theoretical Speedup (k)Arithmetic Pipeline: Floating-Point Addition/Subtraction Multi-Stage Pipeline (Compare Exponents, Align, Add, Normalize)Instruction Pipeline: Four-Stage Pipeline (Fetch Instruction FI, Decode Instruction DA, Fetch Operand FO, Execute EX)Pipeline Hazards: Structural Hazards (Hardware Resource Conflicts)Data Hazards: Data Dependencies (Read-After-Write RAW, Write-After-Read WAR, Write-After-Write WAW), Forwarding SolutionControl / Branch Hazards: Unconditional and Conditional Branch Penalties, Pipeline Flushes, Branch Prediction TechniquesAmdahl's Law: Theoretical Speedup Limit of Parallel Systems Based on Serial Fraction S = 1 / ((1 - P) + P / N)
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Introduction to Computers & The IPO Cycle

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Topic 1 · The foundation of modern computing

Introduction to Computers & The IPO Cycle

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💡 The Big Picture:A computer is an electronic system that takes raw data as Input, processes it under programmed logic, and produces meaningful Information as Output.
🍪 Everyday Analogy:Think of baking cookies: Flour & Sugar (Input) ➔ The Oven (Processing) ➔ Warm Delicious Cookie (Output)! 🍪
Key Exam Takeaways
  • ·Data = Raw, unprocessed facts without context (e.g. 42, 'apple').
  • ·Information = Structured data with meaning (e.g. 'Temperature: 42°C').
  • ·Hardware is what you can touch; Software is the instructions running inside.
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Which of the following represents unprocessed raw facts?

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