💻 CUET Computer Science (Section II)

Chapters

1. Exception Handling in Python
   A program that is perfectly legal Python can still fail while it runs: a user types letters where a number was expected, a file is missing, a divisor turns out to be…
2. File Handling in Python
   Everything a program holds in variables disappears when it ends. To keep data — marks, records, a log — a program writes it to a file on secondary storage and reads it…
3. Stack
   A pile of plates is used from the top: the plate put on last is the first one taken off. A stack is the data structure built on exactly that rule, and it turns up…
4. Queue and Deque
   At a ticket window the person who arrived first is served first, and newcomers join at the back. A queue is the data structure built on that rule, and it is the natural…
5. Sorting
   A dictionary is useful because its words are in alphabetical order; the same words in random order would be almost impossible to search. Sorting — arranging elements in…
6. Searching
   Finding a roll number in an unsorted register means reading it name by name; finding a word in a dictionary means opening it near the middle and discarding half the book…
7. Understanding Data
   Marks in a register, readings from a weather sensor, the photos on a phone — all of it is data, and almost every program exists to collect, store or process some of it.…
8. Database Concepts
   A school can keep its records in separate files — one for admissions, one for fees, one for results — and many once did. This chapter starts from the problems that…
9. Structured Query Language (SQL)
   SQL is the language every relational database understands: one statement creates a table, another fills it, and a third asks a question of it. The syllabus uses MySQL, a…
10. Computer Networks
    A phone on Wi-Fi, a school's computer lab and the Internet itself are all computer networks — devices connected so that they can share data and resources. This chapter…
11. Data Communication
    Every message that crosses a network — a web page, an e-mail, a video call — needs a sender, a receiver, something to travel through and rules both ends agree on. This…
12. Security Aspects
    A network that lets you share files and reach any website also lets harmful software and people reach you. This chapter names the threats — the different kinds of…

Practise CUET Computer Science (Section II): mock tests and previous-year questions

The first chapter of the course is free. Every chapter and all the practice is ₹29 a month for the whole course — less than ₹1 a day, cancel anytime.