From root level people with no formal education to university students and teachers of very relevant subjects like computer engineering, electronics and telecommunications, all have almost similar questions on digital Bangladesh. The answers are obviously different for different level of people due to their power of perception. Curiosity on a new concept among all levels of people of a developing country certainly indicates something positive.
For the students of Electronics and Telecommunications Engineering (ETE) at Peoples University, a new chapter on evolution of Telecommunications has just been started and the chapter has relevance on digitalization that helps my curious students to understand better the concept of digital Bangladesh.
Historically, transmission of telegraphic signals over wires was the first technological development in the filed of modern telecommunications. Telegraphy was introduced in 1837 in Great Britain and in 1845 in France. In March 1876, Alexander Graham Bell demonstrated his telephone set and the possibility of telephony, i.e. long distance voice transmission. A modern telecommunication network may be viewed as an aggregate of a large number of point-to-point electrical or optical communication systems. Fibre Optic Communications systems are emerging as major transmission systems for telcommuni-cation networks that operate independently. The channel and signal characteristics of individual communication systems in a telecommunication network vary widely. Such wide variations in signal characteristics have led to the development of different service specific telecommunication networks that operate independently. Examples are: (a) Telegraph Networks (b) Telex Networks (c) Telephone Networks (d) Data Networks
Is it now possible to design a single network that can carry all the services? Yes, it is possible and the key to the solution of this problem is DIGTALIZATION of services. If all the service specific signals can be converted to a common digital domain, a network capable of transporting digital signals can carry the multitude of services. This approach is leading to the evolution of the Integrated Services Digital Network (ISDN).
It gives me much pleasure to observe the smiling faces of my students in the class room with full satisfaction that inspires me much and from this observation my understanding is that the concept of digital Bangladesh is taking right shape through these young and energetic (fighters) students who are ready to fight for creation of a digital Bangladesh. The root level young generation with or without formal education have similar feelings for creation of digital Bangladesh. Their supports and services are also important for developing infrastructures in the remote and rural areas.
কোন মন্তব্য নেই:
একটি মন্তব্য পোস্ট করুন