WHAT IS COMPUTER
In Science fiction movie thrillers, the characters, talk with their computers. Instead of keyboards and television screens, these fictional computers have microphone "ears" that understand spoken English and electronic voices that sound perfectly natural. Put one of these computers one wheels or give it legs and you have the perfect electronic companion : a robot that is easy to use and travels with you to the ends of the universe. You are not likely to find one of these on the shelves of your local electronics stores. Not yet, anyway.
The real computers of today are increasingly powerful. While they have not yet caught up with the movies, they are making great progress in voice recognition, vision and speech. Every few months a new machine or a new program appears that can do things never done before. We now have encyclopedias on personal computers. When you look up a subject you can see a short video and listen to an explanation. Other computers create an electronic world that you see through special video glasses and touch with an electronic glove. Coming soon will be tiny machines that use light beams instead of electricity an perform tens of thousands of functions at the same instant. Even with these exciting prospects, we are not anywhere close to the limit of what can be done.
The future of computing can be stated in three words : Smaller, faster, and cheaper. With computer popping up all over, you might as well learn how they work; and since you cannot yet just talk it over with your machine, you will have to begin at a keyboard. Fortunately, computers are not magic. They DO have a language of their own, which can be learned step-by-step. You do not have to be a super brain.
WHAT IS PROGRAMMING
Suppose you wan to make some words appear on you computer screen. First you do your thinking like an ordinary person. You must decide what you want to say and where the words are to be placed. Then, issue the necessary commands. The computer does not really understand the commands. Before your words can appear on the screen ,the computer translates everything into a collection of ones and zeros, something like 1101 0010. Writing programs in the ones and zeros of the computer's native language is possible. However, computer languages prevalent today make the whole process much easier.
A numbering system, using only ones and zeros is called a binary system. We are more accustomed to decimal or base ten numbering. This preference for ten probable comes form your having ten fingers. counting by tens seems simple and easy because that is how we first learned to count. The decimal system is lot more correct than any other system. Indeed, any number, which you can write in ordinary numbers, can also be written in binary. Expressing numbers with ones and zeros may seem unnatural to us, but it works perfectly for computers.
The idea of programming a computer is one that can be scary for beginners. Even people who regularly use computer or play video games sometimes think that writing the programs takes special skills. Actually, it only requires clear thinking. A computer program is nothing more than a lite of commands or statements. Each statement tells the computers to do something.
लेखक :- अंशिका सिंह पटेल (B.A., B.T.C.) (www.agriculturebaba.com)
और हमारे Facebook Page को लिंक करें :- https://www.facebook.com/Agriculture-Baba-106481014364331/
Agriculturebaba will provide knowledge related to soil, crop production, farm management, horticulture, dairy sci BSc(Ag), BSc(Hort), BSc(Forestry) and etc...!!
If you have any doubts, Please let me know and Please do not enter any spam link in the comment box. ConversionConversion EmoticonEmoticon