CBSE Code 083 · Free · Interactive

Class 7 Computer Science (CBSE & ICSE)

“Hardware, cyber safety, spreadsheets, databases, web, animation & block coding”

A complete Class 7 Computer Science course for both boards. Look inside the computer, stay safe from viruses, learn netiquette & cyber ethics, master spreadsheet formulas (Excel), get started with databases (MS Access) and web pages (HTML), and create with 2D animation and block coding. Clear notes, a live HTML playground, and chapter tests. Free forever.

9 Chapters
3 Modules
Live Simulators
70+30 Exam pattern
Start learning →

🧪 Simulators

Convert number systems and flip logic gates live — don't just read the truth table, build it.

🐍 Real Python

Run Python in the browser, no install — see variables and loops execute step by step.

🇮🇳 Bilingual

Explanations in English and Hindi, tuned to the CBSE 083 syllabus.

📝 Exam-ready

CBSE theory, chapter tests and projects mapped to the 70+30 marks pattern.

🖥️

Hardware & Cyber Safety

Inside the computer (motherboard, CPU, ports); computer viruses & protection; and cyber ethics, netiquette & digital footprint.

Hardware & Cyber Safety

🖥️
Inside the Computer
Start

Internal vs external hardware; the motherboard; the CPU (ALU, CU, registers); the power supply (SMPS); expansion cards (sound/graphics/NIC); and ports (USB, HDMI, VGA, RJ45).
🦠
Computer Viruses & Protection
Start

What a virus is; viruses vs worms vs trojans vs spyware; symptoms; how they spread; antivirus software & updates; and prevention best-practices.
🛡️
Cyber Ethics & Safety
Start

Pros & cons of the internet; cyber ethics & netiquette; IPR (copyright & trademarks); plagiarism; cyberbullying & reporting; and your digital footprint.
📊

Spreadsheets (Excel)

The Excel interface; entering & formatting data; formulas & cell referencing (relative/absolute/mixed); and key functions.

Spreadsheets

📊
Excel — Cells, Formatting & Data
Start

Why spreadsheets; the interface; cell data types; entering/editing data; resizing & inserting rows/columns; cell formatting; basic formulas; and error messages (######, #VALUE!, #DIV/0!).
🧮
Excel — Formulas & Functions
Start

Cell referencing (relative, absolute $A$1, mixed); built-in functions (SUM, AVERAGE, MAX, MIN, COUNT); text functions (UPPER, LOWER, CONCATENATE); sorting and AutoFilter.
🗃️

Databases (MS Access)

Data vs information; records, fields & tables; and getting started in MS Access.

Databases

🗃️
Intro to Databases (MS Access)
Start

Data vs information; database & DBMS; the tabular model (records/tuples = rows, fields/attributes = columns); the MS Access interface; creating a database; and Datasheet view.
🌐

Web Development (HTML)

The WWW; HTML as a markup language; the page boilerplate; and formatting text — with a live preview.

Web Development

📄
Introduction to HTML
Start

The WWW & web pages; HTML as a markup language; tools (Notepad + browser); container vs empty tags; the html/head/title/body boilerplate; body attributes; and text formatting — live preview.
🎬

Multimedia & Coding

2D animation (timeline, layers, keyframes, tweening) and computational thinking with block coding.

Multimedia & Coding

🎬
Multimedia & 2D Animation
Start

Multimedia & 2D animation; the animation workspace (Stage, Timeline, Tools); drawing tools; layers & keyframes; frame-by-frame animation; and motion vs shape tweening.
🧩
Computational Thinking & Block Coding
Start

The four pillars of computational thinking; Scratch blocks; variables; if-then / if-then-else; repeat & repeat-until loops; sensing (keyboard, mouse, collisions); and building a game.