Digital Bangladesh is now a buzz word in our country. The word ‘digital’ is an adjective of the word ‘digit’ that means information, music, image etc. using computer technology. The process of digitalization is to train people on computer technology. It also involves the implementation of e-commerce, e-government etc. It is not an easy task to digitalize our country. Because, there are many problems behind it. The main problem is illiteracy. Most of the people are illiterate in our country. So, we have to educate the people. Corruption is also one of the major problems in our country. So, we need to take proper steps to remove this problem. We also need to develop the infrastructure in our country. We need to give information to the people about digital Bangladesh. Above all, if we digitalize our country, we can get all the services easily through the computer or internet. We also can get all the facilities of rich and middle income countries.

Computer is one of the greatest inventions of the modern science. It is such a latest technology which is used almost everywhere. It is an electronic device but it can perform like a human brain. It has the ability to complete more than one task in a very short time. It has the highest rate of efficiency and it is able to work of many human beings alone within less time.

A computer generally works using input and output devices. It uses hardware and software to process any data in it. The data which we put into the computer is called input data and the data which we get from the computer after processing is called output data. It can calculate and solve big problems. It is a big dictionary and large storage device.

This great invention was not invented overnight. It was invented by British professor Charles Babbage. The first computer was a mechanical Computer. It can save any type of large amount of data like information, images, audio, video, study materials etc. So, it is being used in different fields like banks, offices, educational institutions, hospitals etc.

We can browse internet to search any information and communicate with each other with the help of computer. We can save lots of time and effort through the computer and it has also lessened the paper works in governmental or non-governmental offices or institutions.