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Syllabus of CS 083 for 2021-2022
- Revision of the basics of Python covered in Class XI.
● Functions: scope, parameter passing, mutable/immutable properties of data objects, passing strings, lists, tuples, dictionaries to functions, default parameters, positional parameters, return values, functions using libraries: mathematical and string functions.
● File handling: Need for a data file, Types of file: Text files, Binary files and CSV (Comma separated values) files.
● Text File: Basic operations on a text file: Open (filename – absolute or relative path, mode), Close a text file, Reading and Manipulation of data from a text file, Appending data into a text file, standard input / output and error streams, relative and absolute paths.
● Binary File: Basic operations on a binary file: Open (filename – absolute or relative path, mode), Close a binary file, Pickle Module – methods load and dump; Read, Write/Create, Search, Append and Update operations in a binary file.
● CSV File: Import csv module, functions – Open, Close a csv file, Read from a csv file and Write into a csv file using csv.reader ( ) and csv.writerow( ).
● Using Python libraries: Import Python libraries.
● Data-structures: Lists as covered in Class XI, Stacks – Push, Pop using a list.
Unit II: Computer Networks
● Evolution of Networking: ARPANET, Internet, Interspace Different ways of sending data across the network with reference to switching techniques (Circuit and Packet switching).
● Data Communication terminologies: Concept of Channel, Bandwidth (Hz, KHz, MHz) and Data transfer rate (bps, Kbps, Mbps, Gbps, Tbps).
● Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio link, microwave link and satellite link.
● Network devices: Modem, RJ45 connector, Ethernet Card, Router, Switch, Gateway, WiFi card.
● Network Topologies and types: Bus, Star, Tree, PAN, LAN, WAN, MAN.
● Network Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, HTTP, SMTP, POP3, Remote Login (Telnet) and Internet, Wireless / Mobile Communication protocol such as GSM, GPRS and WLL.
● Mobile Telecommunication Technologies: 1G, 2G, 3G, 4G and 5G; Mobile processors;
Electronic mail protocols such as SMTP, POP3, Protocols for Chat and Video Conferencing: VoIP, Wireless technologies such as Wi-Fi and WiMax
· Network Security Concepts:
Threats and prevention from Viruses, Worms, Trojan horse, Spams
Use of Cookies, Protection using Firewall, https;
India IT Act, Cyber Law, Cyber Crimes, IPR issues, hacking.
● Introduction To Web services: WWW, Hyper Text Markup Language (HTML), Extensible Markup Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Website, Web browser, Web
Servers; Web Hosting.
Unit III: Database Management
Database Concepts: Introduction to database concepts and its need.
Relational data model: Concept of domain, relation, tuple, attribute, degree, cardinality, key, primary key, candidate key, alternate key and foreign key;
Structured Query Language:
General Concepts: Advantages of using SQL, Data Definition
Language and Data Manipulation Language;
Data Types: number / decimal, character / varchar / varchar2, date; SQL commands covered in class XI (2019-20)
SELECT, DISTINCT, FROM, WHERE, IN, BETWEEN, LIKE, NULL / IS NULL, ORDER BY,GROUP BY, HAVING;
SQL functions: SUM ( ), AVG ( ), COUNT ( ), MAX ( ) and MIN ( );
Joins: equi-join and natural join
Interface of Python with an SQL database
– Connecting SQL with Python
– Creating Database connectivity Applications
– Performing Insert, Update, Delete queries
– Display data by using fetchone(),fetchall(),rowcount
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