CS Fundamentals
485 articles in this topic
Regular Language Properties: Closure, Decision Tests, and Worked Examples
Connect closure properties, decision tests, and proof tools through product automata, pumping arguments, Myhill-Nerode reasoning, and checked string traces.
Updated 3 Aug 20267 min readTheory of Computation
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 read79 viewsComputer Organization & Architecture
Combinational Circuits in Digital Electronics: Design, MUX, Decoders and Worked Examples
Learn a repeatable method for converting a logic specification into a verified combinational circuit, then apply it to adders, multiplexers, decoders, parity and hazards.
Updated 2 Aug 20266 min read102 viewsDigital Logic
Dynamic Memory Allocation in C: malloc, calloc, realloc and the Bugs Exams Test
Follow one resizable integer array from allocation to release. The worked trace explains byte counts, preserved values, uninitialised elements and the safe temporary-pointer pattern.
Updated 1 Aug 20266 min readC Programming & Data Structures
Cyber and Info Security in Computer Networks: Complete Guide with Worked RSA and Diffie-Hellman Examples
Build the topic from security goals to firewalls, then hand-calculate RSA encryption, an RSA signature, and a Diffie-Hellman shared secret. Includes exam traps and an interview-ready TLS explanation.
Updated 1 Aug 20266 min readComputer Networks
Intermediate Code Generation in Compiler Design: Three-Address Code, Quadruples, Triples and Worked Examples
Learn how a compiler produces intermediate code, represents it as quadruples or triples, removes repeated work with a DAG, and handles control flow.
Updated 1 Aug 20266 min read124 viewsCompiler Design
Optimization in Discrete Mathematics: Linear Programming, Integer Methods and Worked Examples
Learn how to model and solve continuous and discrete optimization problems through a workshop LP, an integer branch-and-bound tree, an assignment matrix, and a dual.
Updated 1 Aug 20267 min readEngineering Mathematics
UPPSC Polytechnic Lecturer (CS): Eligibility and the Full Selection Process
A B.Tech or M.Tech label alone does not settle lecturer eligibility, and the written exam may not be the final stage. Read the complete funnel before planning.
Updated 1 Aug 20265 min read92 viewsOperating Systems
File Organization and Indexing in DBMS for GATE: Dense, Sparse, Primary and Secondary Indexes
Build one sorted file, count its blocks, and index it in enough ways to make dense, sparse, primary, secondary, and multilevel questions routine.
Updated 1 Aug 20266 min readDBMS
Grammar in Theory of Computation: Complete Guide with Worked Examples
Learn how grammars generate languages, classify all four Chomsky types, convert a regular grammar to an NFA, detect ambiguity, and use CNF step counts.
Updated 1 Aug 20266 min readTheory of Computation
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
Boolean Minimization in Digital Electronics: Laws, K-Maps and Worked Examples
Learn to reduce Boolean expressions with auditable algebra, legal K-map groups, don't-cares, and truth-table checks. Includes complete SOP and POS examples.
Updated 30 Jul 20267 min readDigital Logic