Public Address Amplifiers, popularly known as sound systems, find extensive application at public meetings, social functions, religious places, schools and colleges, hotels, elections auditoria, etc. In this area ...

Personal Computers are widely used these days in office automation in Business/trade, Industries, Banks, Insurance Establishments, Hospitals, Hotels, Railway, Air-lines and Transport services etc. Personal Computer ...

Modem is a device which converts digital signals to audio frequency tones and vice versa. The frequency of these signals is within the frequency range of telephone lines. Through telephone lines, these signals are ...

Loud- speaker is an important electronic component used to convert electrical power into acoustical power. In all practical applications of loudspeakers, the following are important electrical and acoustical properties: 1. ...

The electronic quartz analog clock has brought a revolution in the clock industry. The quartz clocks were introduced in the Indian market in 1977- 78 and since then market as well as production in India has been ...

The electronic gas lighter uses a piezo-electric crystal. This crystal has a property to generate voltage when it is mechanically defor med. It generates high voltage across a spark gap which when in proximity to a ...

Desk Top Publishing (DTP) primarily pertains to designing of documents using personal computer, page – layout programs (such as PageMaker or MSWORD) and laser prints. The laser printer has the capability of printing ...

CRT data display monitors form a very essential part of a computer as they are not only used at the console for the display of input/output data but also in the peripherals such as data entry terminals. The users of ...

The key board is used for the data entry to the computer. A good keyboard should offer smooth travel to the touch without catching and should be able to mount firmly without no flexing. The keyboard should be free of the ...

Upholstery leather manufacture , like many other branches of the industry, is in a rapid state of flux at this time. Although the manufacture of upholstery leather has been characterized for years by rocker tannage, ...