Data structures in Class 12 Notes 1. Data Structure A data structure is a systematic manner of organizing, storing and managing the data so that it can be accessed and processed efficiently. Examples are Array, List, Stack, Queue, Linked List, Tree and Graph etc. Need of Data Structures 1. It is used to store large…
1. What is a Tuple? A tuple is a collection of items. It stores multiple values in a single variable. Tuples are ordered and immutable (cannot be changed). Example Output: 2. Features of Tuple Ordered Immutable (cannot modify items) Allows duplicate values Can store different data types Faster than lists 3. Creating a Tuple Multiple…
What is a String? A string is a sequence of characters enclosed in: Single quotes ‘ ‘ Double quotes ” ” Triple quotes ”’ ”’ or “”” “”” Example Features of Strings Strings are immutable (cannot be changed after creation) Strings are indexed. 3. String Indexing Positive Indexing As we have seen that list items…
1-Define hub. Ans- A hub is a hardware device used to connect several computers together Hubs can be either active or passive Hubs usual. it can support 8, 12 or 24 RJ45 ports 2-Define modem. Ans- MOdulator – DEModulator (or Modem) is a device that connects telephone line to computer It converts digital signal to…
What is a computer network? A computer network is a collection of interconnected computers. Two computers are said to be interconnected if they are capable of sharing hardware, software and exchanging information. Name the architectures that are involved in network design? Peer to peer (P2P) Client – Server Hybrid of client-server and P2P List the…
1. What is MySQL? MySQL is an Open Source Relational Database Management System (RDBMS). Data is stored in the form of tables (rows and columns). It uses SQL (Structured Query Language). 2. Why Connect MySQL with Python? Python programs can store and manage large data using MySQL. Useful in: School management systems Banking systems Online…
Dear Students, You can download project file with python source code here. We upload AI, IP-065 and IT- 802 projects later. Computer Science –083 Projects- 1- Railway Management System 2-Bank Management System 3- Hospital Management System 4- School Management System
CBSE Class- 12 -Computer Science (083) Practical File CBSE Class- 12 -IP (065) Practical File CBSE Class- 10 -Information Technology (402) Practical File
Computer Science Sample Paper 2026 Class 12
