Wednesday, March 5, 2014

About iphone6

Some of you might have been expecting the iphone 6 to have debuted in 2013,but given the iphone's history-from the 3G onwards,there's always been a half step S model before the next numbered iphone-we were never going to get the 6 until 2014.infact, it will technically be the iphone8 by the point.....but hey,,  who 's counting these days?????

Friday, September 17, 2010

NEW MODELS OF NOKIA PHONE

                    
        London (Agenci)-A big industries of world of a nokia phone maker;construct a three new models smart phone and bought at market .New models E7,C7 and C6 are three  new models .These phone are of large screen with screentouch and latest simbiyan software are used.

                                 These cellphone are avilable in London .40% of cellphone are covered by Nokia phone in world.This inprovement are seen in about production of 97A.D,but Gartner scientist"Klorolina Milanaci"said that;"Nokia is not yet there where it should be reached.
                                                                                                  Nokia.

Sunday, August 29, 2010

POSITIVE IMPACT AND NEGATIVE IMPACT OF COMPUTER IN THE SOCIETY


POSITIVE IMPACT OF COMPUTER

It is obvious that the computer are revolutionizing our daily life.More and more educated people are being attracted in using computers for solving their daily problems from word processing ,spreadsheet calculation to solving a very complex simultaneous equation.The following are the basic reasons of increasing attraction towards the use of computers in homes and offices.

-A tedious work can be carried out with the use of computers speedily and accurately.
-Instead using paper files and occupying large spaces,more information can be stored in small space electronically that can be accessed as required.
-Computers possess multitasking and multiprocessing capabilities which facilities multifold operation on data.
-Since the data are stored in electronic devices ,they can be easily accessed.
-Computers obey the instructions and they process the data impartiality during result processing.
-Documents can be kept secret with special login name and password protection.
- Safeguarding the Citizen: Computerized system provide various safeguarding systems.
*Personal data store by the police.
*Personal data stored by the local administrative bodies.
*Information about weather forecast.
*Information about natural calamities such as earthquake.
*Information about recent events of traffic ,road,etc.
-Social Effects(ATM,Visa card,MasterCard):People can use automated teller machine cards for withdrawing money deposited with the help of ATM card ,Visa card or Master card.

NEGATIVE IMPACT OF COMPUTER.

Though computers has numerous positive implication ,some people show its negative impact in the following points.They are:-

-The computers are highly expensive and they aren't affordable for general people.
-There are some methods people can pirate data for misuse.
-Since a computer can do works much faster ,less number for employees can do more work and it leads to increased unemployment.
-Due to malfunction of the computer ,huge data and information can be lost.
-Computer technology is fast changing technology and we have to update accordingly which might become difficult for small firms and schools.
-Due to the difficulty of data transmission we fail in providing proper services.
-Data Integrity and data Security.

Monday, August 2, 2010

COMPUTER IN REAL WORLD


Computer is used in almost every field in development countries.Industrial advancement,agriculture,defense,education ,commerce and business,medicine,tourism,banking ,etc.,are the core areas where computer science is utilized.Today,man can communicate from one part of world to another part easily ,which is and example of the advancement of computer science .Within a minute ,man can communicate through Telephone ,Telex,Fax and TV from one part of world to the another.Computer has helped in banking network also .Your deposited money in a bank of foreign country can be withdrawn using ATM (Asynchronous Transfer Mode) card or Master card from the other country ,and hand-prints can be sent to any parts to any parts of the world at great speed.


Computer has its application not only in manufacturing ,medical research ,education and defense ,but it is also used in small business offices to handle day-to-day work easily and efficiently .Due to growing importance and numerous application of computers ,it is essential to provide Computer Education .

Computers are used as aids in the study of gravity ,flow of electric current ,atomic structure,chemical reaction ,blood circulation , etc .,as textual matter and /or graphical analysis.Computers assist the student in learning
and understanding the subject matter easily.

Computer is used in development countries in the study of history ,mathematics ,geography etc. Similarly ,mathematics ,science and statistics are taught with the aid of computers.Distance learning like 'Open University' is another educational application in Europe and America.

Students can get university level education with the aid of computers through the 'Open University'.In 1960s, computers were basically applied in research and in 1970s computers were used in industries for process control and quality control.In 1980s, computers were extensively used in education and economic development .At the beginning of 1990, a new subject has been introduced in education which is called "Information Technology".

Friday, July 30, 2010

CHARLES BABBAGE



One of the creative thinker of 19Th century was the Englishman Charles Babbage(1792-1871).He is considered to be the father of computer science.Like Pascal and Leibniz,Babbage was a mathematician.And he too, wanted to build a machine that could perform difficult calculations accurately and quickly.

Babbage was Professor of Mathematics at Cambridge University and started a small model of his "Different Engine".He demonstrated his machine to the Royal Society in the year1823.The demonstration won government backing for Babbage who wished to produce a large machine able to generate reliable astronomical and mathematical tables containing values accurate to 20 decimal places.the machine was never completed because of mechanical difficulties.

However,Babbage's researches led him to develop the concept of an Analytical Engine in the year 1833,essentially a general purpose automatic calculator,which he designed in 1834.This design owed much to Jacquard's invention and incorporated many features present in modern computers.He had a concept of using binary digits (Bits) in this machine.

Using his idea about 100 years later in 1973 Mark-I was developed by Howard Aiken.Idea generated by Charles Babbage can summarized in the followings points:
1. Data and the program instruction fed in via a device using a suitable medium (punched cards)
2. Storage facilities for data and instructions.
3. A mechanized unit for calculation- a "mill".
4. A suitable output device.

Thursday, July 29, 2010

CHARACTERISTICS OF A COMPUTERS


Computers are quite different from a normal machine.The popularity and importance or computer is due to following characteristics:

-SPEED:
Computers perform operation at a very high speed.It can solve complex calculation in a short time which may require for a human.Today ,computer can perform 100 million computations per second.The time taken to perform a task by the computer is measured in fraction of seconds.

-ACCURACY:
Computer is basically 100% accurate machine.It gives accurate result for the inputted data .But,if we give wrong or garbage.This is known as "Garbage -In Garbage-Out"(GIGO).The output is dependent on the given input.The mistakes in the calculation of computer is due to human errors.

-DILIGENCE:
Computer can perform required tasks repeatedly with same speed ,accuracy and efficiency.It never gets tired or bored doing a work.So,computer is a diligent machine.

-VERSATILITY:
Computer is a versatile machine.It can be used in wide range of application and various field such as communication,education,business,printing and publishing,astronomy etc.

-STORAGE CAPACITY:
A computer can store large amount of data and information which can be retrieved whenever required.This large storage capacity is achieved through auxiliary or secondary memory in computer .Storage capacity of computer is measured in terms of bytes,kilobytes,megabytes,gigabytes and terabytes.

APPLICATION OF COMPUTER


Now a days ,computers are used everywhere.It is used for wide variety of application and fields such as bussiness,banking ,medicine and health care ,education ,space technology ,transpotation and communication ,music and so on.This huge popularity of computers is due to its peculiar characteristics such as speed ,accuracy,diligence,versatality,automation and reliability.

-COMPUTERS IN BUSSINESS:
Morden bussines cannot survive without computers.In bussiness ,computers are ued for general operation such as day-to-day transactions,maintaning employee records,writting letters ,communicating co-workers and so on.They are also used for managerial tasks such as preparing budgets,forecasting buying selling pattern and formulation of appropriate policies.

-COMPUTERS IN BANKING:
Banks are using computers for various costomer services such as cheque verefication ,costomer balance inquiry ,printing of costomers statements and so on.
MICR(Magnatic Ink Character Reader) is a computer devices which automates the varification of the costomer cheques.ATM(Automated Teller Machine) is a computer device used by bank for automatically providing banking services such as money deposit withdraw1 and query balance to the cosomer without involement of bank staffs.It acts as minibank.

-COMPUTERS IN EDUCATION:
Computers have bought revolution in the field of education.Now ,computers are used as teaching and learning aids by teachers.Students can use self learning program to learn various subjects.The use of computers has popularized the concept of open universities .Through distant learning students can get university degrees on-line ,sitting infront of a computer at their home .

-COMPUTERS IN SPACE TECHNOLOGY:
It would be impossible to explore outer space without computers .Computers are used for the design and operation of artificial satellites ,rockets and other space exploration vehicles.Thesedays ,weather pattern in the earth ,damages due to natural disasters such as flood,earthquakes etc. are predicted by analyzing the data sent by artificial satellites using computers.

-COMPUTERS IN TRASPORTATION AND COMMUNICATION :
Transportation and communication sectors are benefitted a lot due to computer technology.Computers are used in traffic control system of land as well as air.It prevents unnecesary delays due to traffic jams.It also reduces the chances of collision of aeroplane .Computers are used for the reservation and cancellation of tickets of aeroplanes,bus,railway and so on.

The use of Internet and e-mail has created a new dimension in communication sectors.Now ,a person in one side os globe can communicate with the other person in another side of globe as if they are face-to-face with help of video-conferencing technology via computer.Electronic mail (e-mail) and chat services
in computer enables people to send and receive messages instantly.

-COMPUTERS IN MUSIC AND ENTERTAINMENT:
Computers have become a useful tool for musician .With the help of computers musician creat new musical notes .It also provides much flexibility to composers.COmputers are used in entertainment industry such as television theatre ,flims etc. to give special effects to make the contents real and attractive.