GATE CS Preparation

Subject-wise strategy, PYQ analysis, and realistic study plans for GATE CS aspirants.

61 articles in this topic

Infix to Postfix Conversion and Evaluation for GATE: Stack Applications Solved

Learn the two stack procedures behind expression conversion and evaluation. Complete traces show what happens to every operator, operand and parenthesis.

Updated 26 Aug 20265 min read75 viewsGATE Strategy & Roadmap

First Fit, Best Fit and Worst Fit for GATE: Contiguous Memory Allocation Numericals Solved

Run the same process stream through First Fit, Best Fit and Worst Fit. The full trace shows why every hole must be updated after every allocation.

Updated 24 Aug 20265 min read274 viewsGATE Strategy & Roadmap

Programming Language Design: Syntax, Semantics, Types, Scope and a Worked Mini-Language

Design MiniCalc from tokens to runtime, then trace how precedence, typing, environments, scope and parameter passing change what a program means.

Updated 23 Aug 20267 min read90 viewsGATE Strategy & Roadmap

Divide and Conquer for GATE: Recurrence Analysis of Merge Sort, Quick Sort and Binary Search

Turn split, solve and combine into a recurrence, then solve the standard Merge Sort, Quick Sort and Binary Search cases without relying on memorised answers.

Updated 21 Aug 20265 min read106 viewsGATE Strategy & Roadmap

Object-Oriented Programming (OOPS): Core Concepts with a Worked C++ Example

Build one connected OOP model, then trace how two account objects respond differently through the same C++ base-class interface.

Updated 19 Aug 20267 min read96 viewsGATE Strategy & Roadmap

CPU Performance Numericals for GATE: CPI, MIPS and Amdahl's Law Solved

Build every CPU performance answer from one equation. Then use it to solve weighted CPI, execution time, MIPS and Amdahl speedup without mixing the units.

Updated 17 Aug 20266 min read109 viewsGATE Strategy & Roadmap

Visual Basic Programming Language: Syntax, Events and Worked Examples

Build a clear mental model of Visual Basic on .NET, then trace a Windows Forms result calculator from input validation to its final event-driven output.

Updated 15 Aug 20267 min readGATE Strategy & Roadmap

Counting Functions for GATE: One-One, Onto and Bijections, with Every Formula Derived

Fix domain and codomain sizes first, then derive total, injective, surjective and bijective counts through choices, permutations and inclusion-exclusion.

Updated 13 Aug 20266 min read62 viewsGATE Strategy & Roadmap

Society, Law and Ethics in ICT: Privacy, Cybercrime and Worked Examples

Learn to separate social, legal, ethical and security questions through worked ICT cases on access, privacy, phishing, intellectual property and e-waste.

Updated 11 Aug 20266 min readGATE Strategy & Roadmap

Moore vs Mealy Machines for GATE: State Diagrams, Conversion and State Minimization, Solved

Follow one overlapping 11 detector through Mealy and Moore forms, then convert, trace and minimize finite-state machines without losing a clock.

Updated 9 Aug 20266 min read150 viewsGATE Strategy & Roadmap

Internet Fundamentals: Architecture, Connections, DNS, URLs and Worked Examples

Build a clean mental model of the Internet and Web, then trace a browser request and calculate transfer time, cache expiry and segment count.

Updated 6 Aug 20266 min readGATE Strategy & Roadmap

Pigeonhole Principle and Inclusion-Exclusion for GATE: Counting Problems Solved Step by Step

Make the guarantee step and the inclusion-exclusion signs automatic through two fully checked, GATE-shaped counting problems.

Updated 4 Aug 20266 min read65 viewsGATE Strategy & Roadmap