Stop reading CS theory.
Start running it.
Interactive browser simulators for OS, Networks & DBMS — schedule processes, replace pages, route packets. An AI tutor explains every move and generates infinite practice scenarios tuned to you.
No signup to start · 2 simulators free forever · ₹499 unlocks all 12
Why it sticks when textbooks don't
You don't memorise an algorithm — you operate it, get it wrong, and have the AI tutor show you exactly why.
Operate the algorithm
Drag processes, change the time quantum, pick a victim frame. The simulation responds live — Gantt charts, fault counts, head movement.
AI tutor explains every move
Stuck on why SJF starves P3? Ask. The tutor reads the exact state and explains in plain English, then quizzes you back.
Infinite fresh scenarios
One click generates a brand-new problem with a worked solution — not the same five textbook examples everyone has already seen.
12 simulators, one pack
Two are free forever. The rest unlock with the ₹499 pack.
CPU Process Scheduling
Run FCFS, SJF, Round Robin & Priority on live process queues. Watch the Gantt chart build itself.
Memory & Page Replacement
Step through FIFO, LRU & Optimal page replacement. See faults, hits and frame state per reference.
Disk Scheduling
FCFS, SSTF, SCAN & C-SCAN head movement on a live cylinder track.
Deadlock & Banker's Algorithm
Allocate resources and test for safe sequences. Watch the system avoid deadlock.
Packet Routing
Route packets across a topology with Dijkstra & distance-vector. See the routing tables converge.
TCP & Congestion Control
3-way handshake, sliding window, slow start vs congestion avoidance.
Subnetting & CIDR
Carve networks, compute masks & hosts, generate infinite subnetting drills.
SQL Query Planner
Build a query plan: see scans vs index seeks, joins & cost estimates.
B-Tree Indexes
Insert & split keys in a B-tree; watch the index rebalance live.
Transactions & Locking
ACID, isolation levels, 2-phase locking and dirty/phantom reads.
Sorting & Complexity
Race quick/merge/heap sort, count comparisons, feel Big-O.
Graph Traversal
BFS, DFS, Dijkstra & A* on a grid you draw yourself.
One coffee. Twelve topics. Forever.
Cheaper than a single coaching class. Pay once or go Pro for the AI tutor + monthly modules.
Get the OS cheat-sheet + launch perks
Drop your email for a free CPU-scheduling + paging cheat-sheet and early-bird pack pricing.