Computer Science as a discipline of study - Computer Essay Example
Computer Science as a discipline of study
In Computer science ( or computing science ) we study the science of the theoretical principles of information and computation , and their implementation and application in computer systems . There are various fields in Computer science such as Theory of Computation , Mathematical foundations , Algorithms and Data Structures , Programming methodology and languages , Computer elements and architecture , Numeric and symbolic computation , etc .
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Importance of Computer Science
Computer science is gradually becoming a very important part of our lives
and the present society. It is widely used in several important fields such as business , finance , industrial sector , education , railway , Earth science , research , defence and so on . Nowadays all transactions and operations are performed with the help of computers and computer – aided devices .
These automated operations have predominantly replaced the manual operations which used to be time – consuming , which in turn implied that long batches of jobs would be waiting for indefinite periods to get executed . Delays , suspensions and deadlocks were very common in the past which have been replaced by modern computer systems ensuring optimum execution time and minimum delays .
These computers may consist of Pentium series processors , Celeron and other micro – processors . As a result modern equipments are much more efficient and effective . Several applications require operations to complete within a specified deadline , in these cases modern computer systems are very useful as they ensure that operations complete within the deadline period and crashing of operations is averted .
Reliability of modern systems is much more as compared to that of old manual systems as there are less chances of incorrect computations or wrong results owing to the usage of integrated circuits ( IC ) that incorporate digital adders , subtractors , multipliers , dividers ,integrators and differentiator circuits which essentially form the basis of mathematical computations . These , along with various logic devices Such as counters, flip – flops, multiplexers are present in the Arithmetic–logic Unit (ALU) of a computer system.
Programming languages are very important from the perspective of Computer science. These allow us to express computations that can be performed by a computer. With the help of a programming language , one can construct a well – structured mechanism that defines pieces of data , along with the operations or transformations that may be carried out on that data . Programming languages like C , C++ , Java , COBOL , etc. are of immense importance to the programmers who design various softwares and application programs .
Impact of Computer Science on the present society
Computer science has a huge impact on the present society and will continue to have even greater impact on the future generations . The importance of computers is growing in leaps and bounds and a day will come when Computer Science simply becomes indispensable for the human society . Although Computer science is very new to the world of academic disciplines , it has made a number of contributions to science and society .
Computer science has given rise to the concept of a programming language which is used to precisely express and define methodological information at different abstraction levels . It has triggered the ‘ Digital Revolution ‘ , contributing to the current Information Age and the Internet . The Internet has become widely popular today since it connects people from different countries , states , religions and other differing backgrounds . The search engines like Google, Yahoo, etc. Are helping
People find out whatever they require. Messengers such as the MSN messenger , Yahoo messenger , Gtalk and others are effective means of communication . Communication takes place through message transfer as well as file transfer . Apart from these , chat forums and social networking websites such as Orkut aim to connect friends , relatives , colleagues and people from various backgrounds . Several websites allow users to shop online and make online payments through e – cheques and e – cash . Online trading , online banking , online auction and other commercial and business activities are carried out through the Internet .
Various networking devices, networking components and technologies such as modems , LAN cards , Ethernet allow Internet facilities to be easily accessed by users across different parts of the globe .
Games and multimedia are also coming of age. These are huge attractions for people from different age groups and gender . Pictures , movies , songs , graphics , videos and animations are all multimedia elements and these contribute to the overall entertainment of the current generation .
Data storage and database management systems are very vital aspects of Computer science . Efficient data storage implies correct execution of programs. Databases such as SQL , MySQL , Oracle play important roles in the progress of Computer science . Data storage devices like CD ( Compact disc ) , DVD ( Digital Versatile disc ) , hard disks , pen drives serve an useful purpose when it comes to storing data consistently and for a long time .
Impact of Computer Science on the future society
In the very near future human society will see terrific developments in the field of Artificial Intelligence , which can possibly lead to the advent of Pentium series processors with higher processing capabilities and enhanced intelligence. These properties would probably guide human beings to act according to the instructions of the computer . Moreover scientific computing will reach greater heights in the fields f Bioinformatics , Cognitive Science , Computational chemistry , Computational neuroscience , Computational physics . Progress in cryptography will ensure safer and more secure passwords and user accounts .
Although computers have contributed so much to the development of mankind , there are a few drawbacks that can hurt the society very badly . One of the major drawbacks is that computers increase our dependence on them . Man could even stop thinking one day , resting his hopes on Computer science . This tremendous development in Computer science could lead to some destructive ideas and thoughts .
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 includes Automata theory,Computability theory,Quantum computing theory
 includes Number theory,Graph theory,Mathematical logic
 involves analysis of algorithms
 includes compilers and programming languages
 includes digital logic,multiprocessing
 includes numerical algorithms,symbolic mathematics
 The Pentium brand refers to Intel’s single-core x86 microprocessor based on the P5 fifth-generation microarchitecture
 The Celeron brand is a range of x86 CPUs from Intel aimed at budget/value personal computers
 Miniaturized electronic circuit consisting of semi-conductor devices.
 It is one of the units of the processor meant for arithmetic and logical computations
 network of networks providing different resources and services
 electronic cheque,paid online after a certain transaction replacing ordinary paper cheque
 digital representation of money paid in binary form.
 Device converting analog signals to digital data and vice-versa
 local area network connecting two or more computers in a network within a short distance
 protocol controlling data transmission over a local area network
 branch of computer science that aims to build machines with intelligence.