Computer Organization & Architecture

29 articles in this topic

Pipelining in COA: Speedup, Hazards, and Worked GATE Examples

Build a clear mental model of pipelining, then use it to solve clock-period, speedup, throughput, efficiency, and hazard questions step by step.

Updated 13 Aug 20266 min readComputer Organization & Architecture

Multiprocessors in COA: Concepts, Amdahl's Law and Cache Coherence Worked Examples

Connect multiprocessor classifications, interconnects, memory models, speedup and cache coherence. Then solve the Amdahl and MESI patterns GATE questions rely on.

Updated 11 Aug 20266 min read197 viewsComputer Organization & Architecture

Input Output Organisation in COA: Programmed I/O, Interrupts and DMA, with Worked Examples

See how Data, Status and Control registers support programmed I/O, interrupts and DMA. Then solve a complete cycle-stealing bandwidth calculation.

Updated 9 Aug 20266 min readComputer Organization & Architecture

Floating Point Representation in COA: IEEE 754 Explained with Worked Examples

Learn the IEEE 754 single-precision layout through two complete conversions, then understand hidden bits, biased exponents, special values, and rounding errors.

Updated 7 Aug 20266 min readComputer Organization & Architecture

Control Unit Design in COA: Hardwired vs Microprogrammed, with Worked Examples

Build control unit design from timed micro-operations. Work through a fetch and LOAD sequence, derive control signals, and size horizontal and vertical microcode.

Updated 4 Aug 20266 min readComputer Organization & Architecture

Register Transfer and Microoperations in COA: RTL Notation, Bus Design, and Every Microoperation Type with Worked Examples

RTL becomes easy when you treat every statement as parallel hardware action at one clock edge. This guide works through buses, subtraction, bit masks, insertion, and signed shifts.

Updated 2 Aug 20266 min read56 viewsComputer Organization & Architecture

Programming the Basic Computer (COA): Instruction Set, Assembly Language and Worked Examples

Learn the Morris Mano Basic Computer by decoding an indirect instruction and assembling a subtraction program from source to final memory values.

Updated 30 Jul 20266 min readComputer Organization & Architecture

Coal India Management Trainee (Systems) Syllabus Decoded: the Technical and Aptitude Split

The MT Systems paper is two preparation jobs: a CS core revised for recall speed, and an aptitude half built beside it. The notification settles the numbers.

Updated 27 Jul 20265 min readComputer Organization & Architecture

Coal India MT Systems Preparation Strategy: How Much of Your GATE CS Prep Transfers

Reuse your GATE CS foundation instead of rebuilding it. Most of the technical core transfers to MT Systems. The aptitude half is what you add, over ten weeks.

Updated 25 Jul 20265 min readComputer Organization & Architecture

Hardwired vs Microprogrammed Control Unit for GATE: Microinstruction Sizing Numericals Solved

Separate the qualitative comparison from the sizing numerical. Two worked control-store examples show exactly where every microinstruction bit comes from.

Updated 22 Jul 20267 min readComputer Organization & Architecture

Booth's Algorithm for GATE: Signed Multiplication Traced Step by Step

Trace Booth multiplication through A, Q and Q-1, preserve the sign during every shift, and count additions and subtractions from bit transitions.

Updated 20 Jul 20265 min readComputer Organization & Architecture

Cache Write Policies and Multi-Level Cache Numericals for GATE: AMAT Solved Step by Step

Write-through vs write-back traffic arithmetic and the hierarchical vs simultaneous AMAT formulas, derived once and drilled on L1/L2 GATE-pattern numericals solved step by step.

Updated 18 Jul 20267 min readComputer Organization & Architecture