Computer science is the study of the operating principal of computers, computer programming languages and algorithms for solving theoretical as well as practical problems. It involves the development and use of devices for processing information. It also deals with advantages and disadvantages of computer, it features, application field and its impact on the society. Information in one from is presented to the device (input information) and information in other from is acquired from it (output information).this process conversion of raw material in to the refined from is nothing but the data processing. Data processing may be defined as the process of transforming data (raw material of information) into useful information by the computer.
What is computer?
The term ‘computer ‘is derived from the Latin word’computare’, this means to calculate.
Computer is an advanced electronic device which takes raw as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output).it also saves output for the future use. It can process both numerical and non-numerical (arithmetic and logical) calculations.
In other words, computer is a programmable machine that stores and retrieves data and performs high speed logical and mathematical operations. The working principal of computer can be summarized as input, process and output cycle.
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