CBSE Class 12 Computer Science (CS) Classes in Pollachi, Online Coaching

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Why this fits a Pollachi student

Most Pollachi schools follow the Tamil Nadu State Board (TN SB), with CBSE, ICSE/ISC and Cambridge schools alongside. We teach the CBSE, ICSE/ISC, Cambridge IGCSE, GSEB and NIOS computer subjects, not the TN SB computer paper itself, so this course suits a Pollachi student in one of those schools.

✓Live classes at Indian Standard Time, never pre-recorded
✓Small batch or one-to-one, so a Pollachi student can interrupt and ask
✓Taught by Kajal Ma'am, teaching computer subjects since 2006
✓Free demo class before any payment

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What CBSE Class 12 Computer Science (CS) covers

3 units, 70 theory marks. Tap any unit to see its topics.

01Unit I: Computational Thinking and Programming - 2 (40 marks)+

Revision of Python basics from Class XI
Functions: scope, parameter passing, passing mutable/immutable objects, returning values, default and keyword arguments
Built-in functions, functions defined in modules (math, random, statistics), user-defined functions
Exception handling using try, except, finally and raise
Introduction to files: types of files (text, binary, CSV); relative and absolute paths
Text files: opening modes (r, r+, w, w+, a, a+), reading/writing (read, readline, readlines, write, writelines), close, seek, tell
Binary files: pickle module - dump() and load(); reading, writing, searching, appending and updating records
CSV files: csv module - reading and writing using reader() and writer()
Data structures - Stack: implementation using lists, push and pop operations

02Unit II: Computer Networks (10 marks)+

Evolution of networking: ARPANET, NSFNET, Internet
Data communication terminologies: concept of communication, sender, receiver, message, channel; bandwidth and data transfer rate (bps)
IP address; switching techniques (circuit, packet)
Transmission media: wired (twisted pair, co-axial, optical fibre) and wireless (microwave, radio, satellite)
Network devices: modem, hub, switch, repeater, router, gateway, NIC
Network topologies: Bus, Star, Tree
Types of networks: PAN, LAN, MAN, WAN
Network protocols: HTTP, FTP, PPP, SMTP, TCP/IP, POP3, HTTPS, TELNET, VoIP
Introduction to web services: WWW, HTML, XML, domain names, URL, website, web browser, web servers, web hosting

03Unit III: Database Management (20 marks)+

Database concepts: relational data model, relation, attribute, tuple, domain, degree, cardinality
Keys: candidate key, primary key, alternate key, foreign key
Structured Query Language (SQL): data types (char, varchar, int, float, date)
DDL commands: CREATE TABLE, ALTER TABLE, DROP TABLE
DML commands: INSERT, UPDATE, DELETE, SELECT
SQL clauses and functions: WHERE, IN, BETWEEN, DISTINCT, ORDER BY, GROUP BY, HAVING, NULL handling
Aggregate functions: MIN, MAX, AVG, SUM, COUNT; math, text and date functions
Joins: equi-join and natural join (Cartesian product of two tables)
Interface of Python with an SQL database: connect, cursor, execute, commit, fetchone(), fetchall(), rowcount

See the full CBSE Class 12 Computer Science (CS) course →

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Students across Pollachi

We teach CBSE Class 12 Computer Science (CS) to students across Pollachi and the rest of Tamil Nadu online, so nobody travels to a centre.

Every class is live at Indian Standard Time, in a small batch or one-to-one. Nothing is pre-recorded, so a student in Pollachi asks questions in the moment. Recordings are provided for revision only.

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What students & parents say

4.9/5 from 36 verified reviews.

“

★★★★★

I was able to get my doubts cleared and I had access to a lot of material. Always got response within the committed time.

Vibha

Student

“

★★★★★

Excellent course material. Well experienced Dedicated teacher helped my son did well in CBSE exam today.

Chandrakant Pal (Parent of Sankalp)

Parent

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Frequently asked questions

Do you teach CBSE Class 12 Computer Science (CS) to students in Pollachi?+

Yes. Classes are live and online, so a student in Pollachi joins the same small batch or one-to-one session as anyone else, at Indian Standard Time, taught by Kajal Ma'am.

Which board does this suit in Pollachi?+

How many units are in CBSE Class 12 Computer Science (CS)?+

3 units, carrying 70 theory marks.

Is there a free demo class for Pollachi students?+

Yes. You see a real class before any payment. Message us on WhatsApp and we will arrange it.

Book a free demo for CBSE Class 12 Computer Science (CS) in Pollachi