Basics of Telecommunication

Telecommunication Basics 

Telecommunication is a combination of hardware and software that transmits/sends packet/ information/ data (text, voice, video, emails) from one location to another location through a medium of transmission via signal.

Signal refers to any time varying, voltage, current or electromagnetic wave that carries information. 

There are basically two systems in a telecommunication concept for processing of signal. Analog system for analog signal and Digital systems for digital signal.

Analog Signal: Continuous waves that transmit information by altering the amplitude and frequency of the waves.

Digital Signal: A discrete pulse, either on or off, that conveys information in a binary form. 

 The primary components of a telecommunication system:

• Hardware devices
• Communications media
• Communications networks
• Communications software
• Service provider
• Protocols
• Applications

Hardware devices are that support data transmission and reception across a telecommunications system.

Modem: Modem or short form of (Modulation and Demodulation) is a device that converts signals from analog to digital and vice-versa.

Communication channel: Medium for transmitting data/signal from one location to another. Again it is distributed as Wired and Wireless media.

Wired: Co-axial, copper, fibre, etc.

Wireless: Radio Frequency, GSM, Bluetooth, etc.  

Telecommunication is very important for business now a days due to the huge demand in using web, email, social media and social networking, web-conferencing, phone services, file sharing, data sharing and many more.  Telecommunication helps to improve efficiencies and performance. 

Later we will discuss more on the cabling systems and networking devices used  as well as other telecommunication concepts and system.

-DR