The Notebooks
Student-built notes for figuring out B.Tech together.
Browse subjects, open a notebook, and explore notes, practice, revision sheets, interactive models, and authoritative resources.
Pick up any notebook to flip through handwritten notes, diagrams, and formulas.
Operating Systems
The invisible machinery underneath every program you run.
Database Management Systems
From flat files to ACID transactions, B+ trees & concurrency control.
Algorithms
Asymptotic complexity, divide and conquer, dynamic programming & graphs.
Computer Networks
How packet flows, sliding windows, CIDR subnetting & TCP traverse the globe.
Computer Organization & Architecture
Master instruction formats, addressing modes, IEEE 754 floats, Booth's multiplication, cache mapping, AMAT, 5-stage pipelining hazards, microprogramming, and DMA.
Theory of Computation
Master minimal DFAs, Pumping Lemmas, Pushdown Automata, Turing Machine proofs, Chomsky hierarchy, and Rice's theorem.
Programming in C
Master pointer arithmetic, recursion tree tracing, array-decay rules, structure padding, preprocessor macros, and storage classes.
Discrete Mathematics
Master mathematical logic, first-order quantifiers, relation closures, POSET lattices, cyclic groups, combinatorics, recurrence relations, planar graphs, and chromatic coloring.
Data Structures
The building blocks of efficient programs: balanced trees, heaps & hashing.
Compiler Design
How high-level syntax translates into executable machine instructions.
Digital Logic
From Boolean algebra and K-maps to synchronous sequential circuits.
Engineering Mathematics
Linear algebra, matrix eigenvalues, vector calculus & probability distributions.
General Aptitude
Numerical ability, verbal reasoning, spatial logic & analytical speed.
Probability and Statistics
Random variables, conditional probability, distributions, and hypothesis tests.
Linear Algebra
Vector spaces, orthogonal projections, SVD, and PCA foundations.
Calculus and Optimization
Multivariable gradients, Hessian matrices, and convex optimization.
Machine Learning
Supervised and unsupervised models, decision trees, SVMs, and neural networks.
Artificial Intelligence
Search strategies, heuristic A*, adversarial game trees, and logic.
Looking for a specific mode across all subjects?
While each subject notebook is the primary home, these shortcuts aggregate specific materials across all subjects.
Interactive Simulators
11 visual tools for CPU scheduling, Banker’s safety, B+ trees, and page replacement.
Verified GATE PYQs
10-year official question bank with step-by-step derivations and trap warnings.
Cheat Sheets
One-page high-density mental model summaries for exam night revision.
10-Minute Rapid Revision
Rapid recall sheets designed to be reviewed on your phone right before entering the hall.