Unit I INTRODUCTION TO COMPUTERS

Introduction – Characteristics of Computers – Evolution of Computers – Data, Information and Program – Basic Computer organization – Central Processing Unit, Processor Speed, Arithmetic and Logic Unit (ALU), Memory Unit, Input and Output Unit.

Unit II INPUT DEVICES AND OUTPUT DEVICES

Introduction to Input Devices – Keyboard – Scanner – Microphone – Mouse (Optical Mouse, Mechanical Mouse), Touch Screen, Web Camera, Wearable Devices – Computer Output Fundamentals – Printers (Laser Printer, 3D Printers) – Monitors (Liquid Crystal Display, Light Emitting Diodes) – Projector – Speaker – Computer Cables (HDMI, VGA, USB, PS/2, Ethernet, 3.5mm jack).

Unit III COMPUTER MEMORY AND STORAGE

Introduction – Bits and Bytes – Memory Hierarchy – Primary Memory – Random Access Memory (RAM) – Read Only Memory (ROM) – Secondary Memory – Secondary Storage Devices – Hard Disk, Optical Disks, Flash Drive, Solid State Drives (SSD) – Cache Memory.

Unit IV COMPUTER SOFTWARE

Computer Software –Types of Software – System Software: Compilers, Linker, Loader, Operating Systems (Windows, Linux Basics) – Application Software: Word Processors, Presentation Software, Graphics Software – Difference between Program and Packages –Introduction to Python Programming – Real Time Applications of Software: ERP, Finance.

Unit V INTERNET AND SECURITY

Concept of Internet – Applications of Internet – Popular Web Browsing Software – Search Engines – Computer Ethics –Social Networks and E-Commerce – Cloud Computing Basics – Security Issues Over the Internet – Introduction to Cyber Security.