CS Fundamentals
460 articles in this topic
Computer Classification and Flynn’s Taxonomy: The Four Classes with a Worked Vector Example
A machine can belong to several computer classes at once. Learn the four classification axes, Flynn’s matrix, vector and multicore traces, and exam traps.
Updated 11 Oct 20266 min readComputer Organization & Architecture
Decimal Conversion Explained: Binary, Octal and Hexadecimal Worked Examples
Learn one dependable method for converting values between decimal, binary, octal and hexadecimal, including fractions, shortcuts and checks.
Updated 11 Oct 20265 min readDigital Logic
Structures in C: Syntax, Member Access and Worked Examples
Learn how C structures group related values, then trace object and pointer access through complete, implementation-safe examples.
Updated 10 Oct 20266 min readC Programming & Data Structures
Cyber Threats and Attacks Explained: Types, Worked DDoS Example and Exam Traps
Learn to separate threats, vulnerabilities, vectors and attacks, then apply the distinctions to a calculated DDoS scenario and exam-style questions.
Updated 10 Oct 20266 min readComputer Networks
Intermediate Code Generation in Compiler Design: One Cross-Concept Worked Example
Carry one C-like fragment from its source facts to typed temporaries, three-address code, quadruples and a control-flow graph, with every value traced.
Updated 10 Oct 20266 min readCompiler Design
Closure, Semigroup and Monoid: Worked Algebraic Structure Examples
Learn a reliable order for testing closure, associativity and identity. Worked tables and counterexamples show exactly when a structure becomes a semigroup or monoid.
Updated 9 Oct 20266 min readEngineering Mathematics
Round Robin Scheduling Explained: Gantt Charts, Waiting Time and GATE Traps
Learn a fixed Round Robin queue convention, trace staggered arrivals, calculate CT, TAT, WT and RT, and see how quantum size and context-switch cost change results.
Updated 9 Oct 20265 min read67 viewsOperating Systems
Query Languages in DBMS: Relational Algebra, SQL and a Worked Query
Follow one database request from plain English to relational algebra, intermediate relations, relational calculus and SQL, with every result traced.
Updated 9 Oct 20265 min readDBMS
NFA to DFA Conversion: Subset Construction, Worked Example, and Exam Traps
Learn subset construction by converting one three-state NFA row by row, checking the result with strings, and then minimising the reachable DFA.
Updated 9 Oct 20265 min read52 viewsTheory of Computation
Programmed I/O: Polling, CPU Utilisation, Worked Examples and GATE Question Patterns
Follow one programmed-input transfer from control write to data read, then calculate how many polls one word costs and what a longer poll period buys.
Updated 7 Oct 20266 min readComputer Organization & Architecture
Two's Complement Arithmetic Explained: Signed Ranges, Subtraction, Overflow and Worked Examples
Build a reliable 8-bit method for encoding signed values, subtracting with complements, detecting overflow, extending signs and checking every result.
Updated 7 Oct 20266 min readDigital Logic
Functions in C: Syntax, Parameters and Worked Examples
Learn how C declarations, calls, and definitions fit together. Compile two complete programs, follow their values, and trace composition and recursion.
Updated 6 Oct 20266 min readC Programming & Data Structures