VM-LEARNING /class.xii ·track.cs ·code: 083 session: 2026_27
$cd ..

~/xii-cs

class.xii-cs.index — VM-LEARNING // track_02 12_chapters
root@vm-learning~$openclass.xii --track=cs
subject:Computer Science code:083 units:3 · python2 + networks + sql chapters:12 · 8 + 1 + 3 session:2026 — 27

<class.xii/> COMPUTER_SCIENCE

// Advanced syllabus: user-defined functions, exception handling, file I/O, data structures, networks, and SQL with mysql.connector.

◆unit_01 — programming + files

UNIT 1 — Computational Thinking & Programming

// 8 chapters · revision → functions → exceptions → files (txt/bin/csv) → stacks

unit_01 · ch_01

Revision of Python (Class XI)

Problem-Solving · Tokens · Data Types · Operators · I/O · Errors · Flow · Loops · Strings · Lists · Tuples · Dicts · Modules

ch_1_1[ open ] →
unit_01 · ch_02

Functions

Types · Definition & Call · Parameters · Arguments · Return · Scope · Worked Programs

ch_1_2[ open ] →
unit_01 · ch_03

Exception Handling

try · except · else · finally · raise · Custom Error Messages · Worked Programs

ch_1_3[ open ] →
unit_01 · ch_04

Introduction to Files

Data Persistence · Text vs Binary vs CSV · File Paths · open() · Modes · close() · with-statement

ch_1_4[ open ] →
unit_01 · ch_05

Text Files

write · writelines · read · readline · readlines · seek · tell · Worked Programs

ch_1_5[ open ] →
unit_01 · ch_06

Binary Files

pickle.dump · pickle.load · Create · Read · Search · Append · Update · seek & tell

ch_1_6[ open ] →
unit_01 · ch_07

CSV Files

csv module · writer · writerow · writerows · reader · DictReader · Worked Programs

ch_1_7[ open ] →
unit_01 · ch_08

Data Structures — Stack

LIFO · push · pop · peek · isEmpty · List-based Implementation · Applications

ch_1_8[ open ] →
◆unit_02 — networks

UNIT 2 — Computer Networks

// 1 chapter · data communication · protocols

unit_02 · ch_09

Computer Networks

Evolution · Data Communication · Media · Devices · Topologies · Internet · Protocols

ch_2_1[ open ] →
◆unit_03 — databases + sql

UNIT 3 — Database Management

// 3 chapters · concepts → advanced sql → python/mysql connectivity

unit_03 · ch_10

Database Concepts & SQL Basics

Relational Model · Keys · Data Types · Constraints · DDL · DML · Simple SELECT

ch_3_1[ open ] →
unit_03 · ch_11

Advanced SQL

WHERE · LIKE · BETWEEN · IN · ORDER BY · Aggregates · GROUP BY · HAVING · JOIN

ch_3_2[ open ] →
unit_03 · ch_12

Python ⇔ MySQL Connectivity

mysql.connector · connect · cursor · execute · fetch · commit · rollback · Worked Programs

ch_3_3[ open ] →
root@vm-learning~$echo"end_of_index"