For Class XI

Basics of Information Technology
Basic concepts of IT
  • Hardware and software
  • Input and output devices {I/O processors, keyboard, mouse, character-recognition microphone, camera, scanners, LDC, CRT, printers (character, dot matrix, Daisy wheel, line, chain, drum, laser jet, impact and non-impact) plotters (flatbed, drum) memory (units, capacity, address, memory operation, access methods, definition of stated dynamic memory)}
  • Operating system and computer programs
  • Basic units of data storage, storage and memory
  • Steps of software systems development

Information networks
  • Basics of the technology of workgroup computing
  • The benefits of E-mail and its software
  • What is the Internet and how it is useful?
  • LAN and WAN
  • Basics of concepts, modals, standards, network topologies, modes

Data communication
  • Introduction of data communication, elements, modes
  • Types of data
  • Encoding different types of data
  • Transmission media and speed, methods
  • Modem, modulation, demodulation

Applications and use of Computers
  • Computers and the opportunities offered by their use
  • Types of system encountered in everyday life, home, business, industry, education,           e-commerce computer simulation, CAM, Cad, weather forecasting, medial use, word processing.
  • Understand how Computers can simplify our work practices

Hardware and systems software
  • Computer architecture
      o Block diagram of computer (CPU, RAM, ROM, input/output, data bus, address bus, control bus and ports)
      o Introduction to ALU, CU, main memory (RAM, ROM), input/output unit, bases.
      o Registers, Program counter (PC), memory address register (MAR), memory buffer register (MBR), instruction register (IR), stack, accumulator, data register, data address register (DAR).
  • Computer operations
      o Simple Machine Instructions format,...