CS Fundamentals
480 articles in this topic
Sequential Circuits in Digital Electronics: Flip-Flops, Registers and a Worked Mod-4 Counter
Learn to trace sequential logic edge by edge, then design and verify a two-bit synchronous counter using state tables, D-input equations and timing constraints.
Updated 13 Aug 20266 min readDigital Logic
C Programming Fundamentals: Complete Guide with Worked Examples for GATE and Placements
Build a reliable C foundation through traced outputs, pointer arithmetic, function calls, arrays, structures, recursion, and memory allocation.
Updated 13 Aug 20267 min readC Programming & Data Structures
Network Hardware Basics for GATE CS: Devices, OSI Layers, and Collision Domain Counting
Stop mixing up hubs, switches, and routers. Learn the device layers, domain-counting rules, transmission media, and a worked topology for GATE and interviews.
Updated 13 Aug 20266 min readComputer Networks
Code Optimization in Compiler Design: Basic Blocks, Data Flow and Worked Examples
Learn how compiler optimizers use basic blocks, control-flow graphs and data-flow facts. Two checked traces cover loop strength reduction, liveness and safe dead-code removal.
Updated 13 Aug 20267 min readCompiler Design
Group Theory in Discrete Mathematics: Group Tests, Subgroups and Worked Examples
Learn a repeatable group test through addition and multiplication modulo 8, subgroups, cosets, a quotient map, and non-commuting permutations in S_3.
Updated 13 Aug 20266 min readEngineering Mathematics
Process Synchronization in Operating Systems: Semaphores, Critical Sections and Worked Examples
Build process-synchronization reasoning from a lost update to critical-section rules, semaphore operations, a capacity-3 buffer trace and common failure patterns.
Updated 13 Aug 20267 min readOperating Systems
Relational Calculus in DBMS: Tuple and Domain Calculus Explained with Worked Examples
Learn TRC and DRC through one small database, then trace existential and universal queries without getting caught by quantifier or safety mistakes.
Updated 13 Aug 20267 min read69 viewsDBMS
Moore and Mealy Machines: Output Tracing, Conversion and Worked Examples
Learn how state outputs and transition outputs change a trace. Two binary examples show parity, Moore-to-Mealy conversion and the exact state splitting needed in the reverse direction.
Updated 13 Aug 20266 min readTheory of Computation
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 read396 viewsComputer Organization & Architecture
Number Representation in Digital Electronics: Conversions, Complements and Worked Examples
Learn number representation through exact conversions, signed encodings, binary arithmetic, special codes, fixed point and IEEE 754 worked examples.
Updated 11 Aug 20266 min read56 viewsDigital Logic
Structured Knowledge Representation Models: Semantic Networks, Frames, Scripts and Worked Inheritance
Learn how structured knowledge models store relations, attributes and events. Trace defaults and exceptions through one exact Bird, Penguin and Pingu example.
Updated 11 Aug 20266 min readC Programming & Data Structures
Data Communication in Computer Networks: Complete Guide with Worked Examples
Build the Data Communication basics that make Computer Networks numericals easier. Learn the core terms, choose the right formula, and solve four standard patterns step by step.
Updated 11 Aug 20266 min read63 viewsComputer Networks