UNIT–I
- Brief History of Development of Computers
- Computer System Concepts
- Computer System Characteristics/Capabilities
- Limitations of Computers
- Types of Computers
- Basic Components of A Computer System – Control Unit, ALU, Input/output Functions and Characteristics
- Memory RAM, ROM, EPROM, PROM and other types of Memory
UNIT–II
- Input Units-: Keyboard, Mouse, Trackball, Joystick, Digitizing tablet, camera, Digital Camera, MICR, OCR, OMR, Bar code Reader, Voice Recognition, Light pen, Touch Screen.
- Output Devices
- Monitors -characteristics and types of monitor -Digital, Analog, Size, Resolution, Refresh Rate, Interlaced / Non Interlaced, Dot Pitch, Video Standard -VGA, SVGA, XGA etc.
UNIT–III
- Printers And Its Types
- Plotter
- Data Storage And Retrieval Methods -Sequential, Direct And Index Sequential.
- Various Storage Devices -Magnetic Tape, Magnetic Disks, Hard Disk Drives, Floppy Disks ,Optical Disks, Flash Drives Video Disk, MMC Memory Cards
- Physical Structure of Floppy & Hard Disk.
- Drive Naming Conventions In PC.
UNIT–IV
- Use of Communication and IT, Communication Process.
- Communication Types-Simplex, Half Duplex, Full Duplex.
- Serial And Parallel Communication.
- Types Of Network -LAN, W AN, MAN.
- Topologies of LAN -Ring, Bus, Star, Mesh And Tree Topologies.
- World Wide Web
- Internet Services.
UNIT–V
- Software and Its Need, Types of Software -System Software, Application Software, System Software -Operating System, Utility Program.
- Programming Languages-Machine, Assembly, High Level, 4GL, Their Merits And Demerits.
- Application Software and its Types –Word-Processing, Spreadsheet, Presentation Graphics, Data Base Management Software
- Virus.
- Working Principles.
- Types of Viruses.
- Virus Detection and Prevention Methods .