Microphones: Introduction, Requirements, Quality of Microphones, Classification, Moving Coil Microphone, Ribbon Microphone, Condenser (or Capacitor) Microphone, Crystal Microphone, Carbon Microphone, Electret Microphone.

Loudspeakers: Introduction, Features of Loudspeaker, Moving Coil (Cone Type) Loudspeaker, Electrodynamic Loudspeaker, Horn Loudspeaker, Loudspeaker for High Fidelity Systems.

Audio Compact Disc Systems: Introduction, Comparison of CD and Tape, Optical Recording, Details of a Compact Disc, Details of Recording Process, Details of playback Process, Geometry of Audio Disc, Encoding Process and Error Correction, D/A Convertor, Handling of Compact Disc.

Colour Television: Introduction, Light Energy, Primary Colours, Tristimulus Values, Trichromatic Coefficients, Colour Triangle, Mixing of Colours, Grassman’s Law, Colour Specifications, Bandwidth for Colour Signal Transmission. Chromaticity Diagram, Spectral and Non-Spectral Colours, Colour Circle, Visibility Curve, Digital Television (DTV) and High Definition Television (HDTV), Recent Advances in TV technology, LCD TV, LED TV, Plasma TV.

Cable Television: Introduction, Video Monitor, Closed Circuit Television (CCTV), Cable Television, Cable TV Using Internet.

Miscellaneous Devices: Digital Watch, Calculator, An Electronic Guessing Game, Cordless Telephone.

Mobile Telephone, Cellular Telephone, UPS, Inverter, Decorative Lighting, Remote Control for TV and VCR, Facsimile (FAX), Pager, Microwave Oven, LCD Timer with Alarm, Electronic Ignition System for Automobiles, Washing Machine, Organisation of Digital computer, Microprocessor, Note Book, Laptop, Tablet PC, Ultrabook, IPAD, Recent Advances in Consumer Electronics.