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

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Why this fits a Dhanbad student

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

✓Live classes at Indian Standard Time, never pre-recorded
✓Small batch or one-to-one, so a Dhanbad 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 Dhanbad

We teach CBSE Class 12 Computer Science (CS) to students across Dhanbad and the rest of Jharkhand 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 Dhanbad 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.

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★★★★★

Before joining Kwickprep, I honestly struggled a lot with Computer Science. I couldn't understand most of the concepts, but thanks to Kajal Ma'am, that completely changed. Her teaching helped me improve so much, and I'm really grateful for that. She's one of the best teachers I've ever had. She explains everything with so much clarity and patience, and even if I didn't understand something the first time, she would happily explain it again, as many times as needed. Yes, sometimes she got strict, but I know it was always for our own good. What I appreciated most was the way she helped us solve a variety of question papers during the Kwick Revision sessions. That really boosted my confidence. The course overall was great, the materials, the teaching, and the support. I'm quite satisfied with everything. Thank you, Kajal Ma'am and Kwickprep, for helping me grow in a subject I once found impossible!

Sankalp C Pai

Student

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★★★★★

I have joined kwick revision course before board examination. It found very useful for preparation of board examination. Educator cover all the topics. Investment of time was worth. Study material and sample paper practice were well organised.

Vedant

Student

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Frequently asked questions

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

Yes. Classes are live and online, so a student in Dhanbad 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 Dhanbad?+

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

3 units, carrying 70 theory marks.

Is there a free demo class for Dhanbad 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 Dhanbad