With the change in time and new discoveries in computer science,human life is no more a static existence. Advancement in information technology , networking and globalization has forced us to remain vary of changes taking place in the world today.
The last few decades of the twenth first century have witnessed the radical changes taking place bothe in our lifestyle and computer technology concomitantly. The change is so rapid that we cannnot use the same software a long time due to the modification in th newer version. Howver, the new version of sftware had basically two distinct advantages :they have simplified menu system and more facilities.
COMPUTER
computr are developed as a result of man's search for a faster way to calculate. Computers are very fast because data and instruction are represented as pulses within electronics circuits and they travel at the speed of light. one day s work on a computer would take a person with a hand calculator,more than 2700 yeas. People who cntributed to make this possible were phhiloshoper, inventors, mathematics, programer, etc... Long before machines existed , people found ways to calculate. They used to count using their fingers or arranged stones in piles or row.They drew lines on the ground , cut notches in sticks or tied knots in stings in order to keep track of the quantities of things. As thier need to calculate increased,people sought tools to help them.
Around fifth century A.D., Hindu philosohers developed a new method of counting from 0 to 9. This system of counting is called the decimal method . THe numbers stated above 0 to 9 are the digits. Digit is a finger or toe , and counting on one's fingers is called the digital operation.The vast majority of computers seen today are electronic digital computers and their names suggest that they carry out their work by performing high speed digital operations on data. The first electronic digital computer were built in the mi 1940s. Their forerunners were a number of digital devices, of which the abacus is one. All these began with counting of pebbles, which of course, was the earliest method.
ABACUS
The last few decades of the twenth first century have witnessed the radical changes taking place bothe in our lifestyle and computer technology concomitantly. The change is so rapid that we cannnot use the same software a long time due to the modification in th newer version. Howver, the new version of sftware had basically two distinct advantages :they have simplified menu system and more facilities.
COMPUTER
computr are developed as a result of man's search for a faster way to calculate. Computers are very fast because data and instruction are represented as pulses within electronics circuits and they travel at the speed of light. one day s work on a computer would take a person with a hand calculator,more than 2700 yeas. People who cntributed to make this possible were phhiloshoper, inventors, mathematics, programer, etc... Long before machines existed , people found ways to calculate. They used to count using their fingers or arranged stones in piles or row.They drew lines on the ground , cut notches in sticks or tied knots in stings in order to keep track of the quantities of things. As thier need to calculate increased,people sought tools to help them.
Around fifth century A.D., Hindu philosohers developed a new method of counting from 0 to 9. This system of counting is called the decimal method . THe numbers stated above 0 to 9 are the digits. Digit is a finger or toe , and counting on one's fingers is called the digital operation.The vast majority of computers seen today are electronic digital computers and their names suggest that they carry out their work by performing high speed digital operations on data. The first electronic digital computer were built in the mi 1940s. Their forerunners were a number of digital devices, of which the abacus is one. All these began with counting of pebbles, which of course, was the earliest method.
ABACUS
Abacus is portable device that consist of beads strung on wires or wooden rods. Using an abacus one can rapidly and accuraely add, subtract, multiply, or divide large numbers. No one is sure about exaclty when the frist abacus appeared. Historiians agree though, that this device appeared between 2000 and 5000 years ago and that had its origin in ancient china, egypt and grecce . Abacus is still used in some parts of the world today. Abacus has two parts divided by mid bar. The part above the mid bar is called heaven and each bead has a value equal to 5. The part below the mid bar is called earth and each bead on earth has a value equal to 1.
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