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Fundamentals of Computer Introduction to Computer Generations of Computer Classification of Computer

CLASSIFICATION You know that device, which computers is called computer. For computation, computer takes some input, performs computation on it and gives result. The type of input that computers accepts, decides its nature and capabilities and the type of computation that it will be able to perform. For example, some of the computers accept input in the form of signals. On the other hand, majority of computers take input in the form of digits. Some computers accept input in both the forms i.e. in the form of digits and signals. On the basis of input type, computers have been classified into following three categories: Analog computers Digital computers Hybrid computers A brief description is of all these types of computers is given below: Analog Computer Let’s first understand what is signal. Signal can be defined as continuous flow of physical identity. Temperature, pressure, water level, speed, voltage, current etc. are few examples...

GENERATIONS  Computer being an electronic device, its size, capabilities and power at any time are greatly influenced by the existing state of electronic of that time. If electronic components and devices of any time were big, slow and unreliable then computers of that time were also big, slow and unreliable. On the other hand fast, reliable and smaller electronic components made the computers small, reliable and fast in operations. You know that technological developments of electronics passed through few major phases. For example, there was time when vacuum tubes were quite popular. They were freely used in majority of electronic equipment. After some time, they were replaced by transistors. Later Integrated Circuits came and set a new path for electronic developments. Various generations of computer that came into existence, are described below. First Generation Computers (1942-1955) First generation computers were voluminous in size. They were made using vac...

I NTRODUCTION Calculation have always been part of man life. Be it is in his personal life or professional work in office, he has to perform calculations. Without calculation he cannot lead a normal life.  It has always been man’s desire to perform all the calculation correctly, effortlessly and at very fast speed. For this, he has been continuously evolving new mechanisms and building more better tools for calculations. Ever since ancient time, a technological race has been set up between the complexity of the problems and calculation capabilities of calculating devices. In this race both the runners have tried their best to stay ahead of each other. Whenever complexity of the calculation takes stride, a machine with more capabilities and power comes into existence. But at the same time, with the advent of new machines, complexity grows multi fold to place new challenges before the machine. Thus in this race, many calculating devices came into existence and became ...

हिमाचल प्रदेश का इतिहास       हिमाचल प्रदेश के इतिहास के स्त्रोत हिमाचल प्रदेश का प्राचीन इतिहास हिमाचल प्रदेश का मध्यकालीन इतिहास हिमाचल प्रदेश का आधुनिक इतिहास हिमाचल प्रदेश में 1857 ई. का विद्रोह हिमाचल प्रदेश से जुड़े राष्ट्रिय आंदोलन हिमाचल प्रदेश में स्वतंत्रता आंदोलन से जुडी गतिविधियां हिमाचल प्रदेश में हुए प्रजा मण्डल आंदोलन   हि माचल प्रदेश का भूगोल  हिमाचल प्रदेश की स्थिति व जिले हिमाचल प्रदेश की प्रसिद्ध पर्वत चोटियाँ with Tricks हिमाचल प्रदेश की प्रसिद्ध र्चोटियाँ से संम्बन्धित महत्वपूर्ण प्रश्न उत्तर हिमाचल प्रदेश के दर्र्रे with tricks हिमाचल प्रदेश के दर्रों से संम्बन्धित प्रश्न उत्तर   हिमाचल प्रदेश में वर्षा हिमाचल प्रदेश के वन, वनस्पति, जीव जंतु एवं राष्ट्रीय पार्क हिमाचल प्रदेश की नदियाँ एवं पुल हिमाचल प्रदेश की घाटियाँ हिमाचल प्रदेश के झरने व चश्में with tricks हिमाचल प्रदेश की झीलें with short tricks हिमाचल प्रदेश के ग्लेशियर हिमाचल प्रदेश की मिट्टियाँ हिमाचल में मौसम एवं जलवायु मानव भू...