who invented our number system?
145941
That's an interesting question. But the answer may seem a bit weird at first. I suggest you read the answer carefully.\n\nThe world has invented the number system. \nIn olden days, the arabians and egyptians used numbers from 1 to 9. But the theory of negative numbers came only after a brilliant Indian Mathematician ARYABHATTA devised the number zero as the king of all numbers. Zero is undoutedly the most important and the backbone of maths and the number system.\nThe number system was extended on both sides of zero around the 1800s to 1900s to form nearly more than 100 numbers on each side. With time, the number system has advanced and now we know that its limitless.\nEverything that is made around us has many helping hands. Always remember that my friend. Keeping asking such provoking questions. They will shape you into a good character.
1061670
aryabhatta of india,he also discoved the decimal system-he was a great scientist of his time,most others would say arabs,but they don't know thay arysbhatta taught them.u know that there r 2 numeral systems-roman numerals and arab numerals but u would be surprised that it is actually india who invented the arab system,arabs r given the credit because they taught all our information to europe but said that they invented this system.
1104424
Our familiar decimal number system developed over the centuries, basically because we have 10 fingers.\n\nComputers - deep down - use binary, because the most fundamental storage element is the bit, which can either be a 0 or 1 logically. In reality, it is usually represented by an electrical circuit, which is either on for 1 or off for 0.\n\nStrings of 1s and 0s are hard for people to use, so decades ago, computer scientists started cluster the bits together into groups of 3 of 4. Three bits map directy to an octal number system (0-7) and four bits map directly to a hexidecimal number system (0-9 then A-F).\n\nBinary doesn't map directly to decimal. 3 bits aren't enough, and 4 is too many, so another translation needs to be done, which is what's done under the scene on calculators and most other computers when numbers are shown to most users.
70438
None, Zero was invented by Indian Mathematician Aryabhata and later Brahmagupta developed its concept
321864
current thought approximate its origin to India circa 1500 B.C. by a well known mathematician named Aryabhata. \n\nthe invention of zero is an important development in human abstract thought because the counting system was initially created to "count" things and not "nothing".  \n\ni am pretty sure it was also concieved independently by other cultures as well but written and archeological evidence at present best support the India origin.\n\ncheck wikipedia for "zero".
294737
What are you? Crazy!!! No body knows his number except him!!
861697
Hi there:\n\nThe cell phone keyboard with the typical ABC\nis, as one answerer stated, a clone of the Alexander Graham Bell    configuration put out by Bell Laboratories, many years ago.\nAs someone stated, this crude way of using the numbers to\nget " words" was a memonic aid, so that "ASH 277" would be easier to remember, than all numbers. Since there were only a few phones, by grouping 3 or 4 numbers into a word, meant you only had to remember the last few digits, so " ROCK " would be the first area code for 999 phone numbers, and you just had to remember the last three digits.\n ( more Bell Labs trivia - did you know that the # sign is an octothorpe? This is out of a 1967 RED BOOK handbook for Bell Linemen... since then the name has been lost, and no one knows what it is called anymore, not even computer reference guides....   -- and, Alexander Bell wanted a word to sign in on a phone call CLEARLY, and searched around the world for a sound that was easy to recognize - the best he could find was the call for fishermen in foggy weather, who yelled AH - Looo, which reverberated like a fog horn and helped to prevent two sailing ships from hitting each other - He modified it a bit and invented the word " hello ", which never existed in the English language until he had all his operators use it... )\n  \n As for the QWERTY layout of the keyboard, here is a previous answer that I gave... your question is asked repeatedly on the ANSWER forum...\n\n__________________________________\n\nEarly typewriters were mechanically crude and the swing arms that\nhad the letters on the end moved 6 inches or more from a circle around\nthe center of the page. If two arms reached the same strike slot,\nthey jammed together, often bending the thin swing arms.\n\nA group of Engineers was given a typewriter by Remmington in New York, to design a jam- proof machine. Instead, the Engineers looked at a data base of the most used and least used\nletters of the English alphabet.\nThey put the most used letters on the LEFT hand, since most people are right  handed, and the most used letters on the weakest, least used fingers - note that  the letter "A" is on the baby finger on the left hand. The baby finger on the left hand was designated the weakest, most difficult to use finger, while the letter A is always abound across almost all amounts of actual typing.\nThe ploy worked, and typists who were using the common keyboard of the day, with all the letters in alphabetical order, slowed to an absoute crawl.\nRepairs of jammed keys stopped immediately.\nDVORAK was designed to improve typing, and " reportedly " quadruples the words per minute.\nRAND in England designed a keyboard with two bowls shaped to\nfit the human hand natural swing movements, so that the typist\ndoes not "reach" for top row keys and left and right keys, but\nmoves only the fingers, and unlike the old typewriters, which had\nkeys that would have to be pressed down against huge springs,\nabout one to two INCHES, the RAND keyboard had touch-screen like keys, that have no visible movement at all. The words per minute reach 2000, easily, by anyone with a bit of practice.\nToday, on a typical computer, programmers and general public are considered " good " if they can do 30 or 60 words per minute.\nSecretaries start at 120 words per minute.\nMost of the computer people I know still use two fingers, including\nsome of the fastest and best programmers, following the GIGO rule.\n(( Computers use a stack of memory, which programmers fill and recall with numbers, using either FIFO or FILO, First In, First OUT, or First in, Last Out. All early calculators like the HP65 I use, with RPN ( Reverse Polish Notiation) use FILO ). GIGO is a parody of this terminology, with Garbage In = Garbage Out. ie. Typing in huge amounts of poorly written and poorly tested program code, is not as fast as typing in well written, well tested
58865
Today, much of the humans on earth use decimal (base 10) numbering because we have 10 fingers and because it is a convenient numbering system for representing numbers.\n\nBut humans haven't always used decimal representation.  The Romans had their "Roman Numeral" system for counting numbers.  The Chinese and Japanese used ideograms (pictures) to represent different numbers.  So did most cultures.  These numbering systems are not Decimal or Base 10.\n\nThe decimal system we use almost universally on earth today was developed by the arab peoples and is refered to as arabic numeral system or arabic numerals.  Decimal (Base 10) was adopted over the other numeral systems because it is so much easier to do computations in than the other numeral systems. For instance, just try to "carry the one" in Roman Numerals.\n\nComputers use Binary (base 2) number system because it is too difficult to represent multiple states or levels in a transistor or memory device.  For this to work, multiple voltage levels would have to be used and as the electricity flows from circuit to circuit, the voltage level could be affected and change, thus making the numbers unreliable. Computers called analog computers make use of varying voltage levels to represent many values of numbers rather than digital computers which use binary.\n\nIt is easy, however, to represent two states (0 and 1) with two extreme voltage values "on" and "off". Even if they degrade and get some noise introduced, making "off" have some small voltage or "on" have lower voltage, the voltages will still be sufficiently different as to be able to recreate the correct value later in the circuit.\n\nRelying on this system of binary representation has allowed humans to mass produce electronic circuits so small and reliable that you and I can communicate about this over long distances and listen.  So, computer scientists and engineers tend not to mess with this good thing of binary unless there is an economic advantage to doing so.\n\nContrary to what poster said, binary numbers existed before the advent of the computer so they were not made only for computers.  See the wikipedia article on Binary Numeral System below.
807428
Many different kinds of number systems developed over the course of history.  In addition to our modern base-10 number system, different cultures have used base-5, base-12, base-16, base-20, base-60, mixed-base, and other number systems.\n\nIn the modern world, base-2, base-4, base-8, and base-16 number systems are often used to accommodate the binary logic of most computer systems.
469511
To quote dilbert: "Early Civilisations never had a concept of zero" (hey, you wanted it thorough right?) And they started the number system at one. .... Hmm, pretty much the panel cuts out... \nRemember, the ones and zeros are really the positive and negative polaritys on a magnetic disk. That is the key to your computer informations. Do not take a magnet to your computer.
286179
I did check. It was John Napier. This used to be a very important name before calculators. To simplify multipling large numbers it was useful to first change the numbers to their logs add them together and then change back to decimals. \nRemember the law of logs/exponents that multiplying 10^2 * 10^3 = 10^5 ? Adding the exponents is the multipling the numbers. Slide rules work the same way.\nIn order for this to work he invented the scientific notation which splits a number into an exponent and mantissa.
1032089
discovery of the number 0?
511802
Our story begins with a primitive man, who needed a way to keep track of things. Eventually, he needed a way to know how many wives, children, pets, how much gold, etc he had. He discovered the natural numbers (1,2,3,4,...)\nNatural numbers were probably discovered independently by many of our early ancestors.\n\nFractions were introduced later to deal with division of stuff into different portions. Some weirdo also thought of negative numbers.\n\nFrom here, people began to add to the natural numbers. The Hindus invented 0 (zero) to represent nothingness, a topic which could consume an entire book. By that point we had integers.\n\nThe Greeks then discovered that they could arrive at numbers which could not be expressed as a ratio of two whole numbers. Using Pythagoras' Theorem, they stumbled upon irrational numbers. Now we have all of the real numbers.\n\nWhen mathematicians began to search for solutions to higher-degree equations, they invented a square root for -1 and created the complex numbers.\n\nCool, eh?
471582
Antonio Meucci invented the telephone.  Its a fact.
1073227
Zero is such a complicated number.   If you look at the way numbers are sequenced -3, -2, -1, 0, 1, 2, 3 etc. it would appear to be even.  There is a problem, however.  Zero came from the Arabic Hindu system and was considered a placeholder.\n\nZero is used as a place holder.  Numbering systems start with #1 and progress to 9.  1 starts over in the tens position and is followed by the placeholder 0 so we know one is in the tens position and not the single unit position.  The same is so for 20 and 30 and so on and so forth.  Hundreds, thousands, tens of thousands, hundreds of thousands, so on and so forth.\n\nNow back to the numbering sequence -3, -2, -1, 0, 1, 2, 3.  Zero is a placeholder and is neither odd or even.  It is a null value.  You have heard of zip, zilch, nada?  That is zero.\n\nZero was brought to the West by a mathematician named  Fibonacci some time in the 1200s.  It made numbers a lot easier to write.  Most numbers were written with a space where a zero would go today.  Made for lots of problems.  The numbers could only be understood in the context of the writing and could never be used by themselves.   1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 etc.  These are writen in sequence so you know the 2nd 1 is really a ten.  But standing alone, it still looks like 1.\n\nThe computer age really stirred the pot.  Programing in the binary system put 0 before 1.   Auuuuuuuuuugh! as Charlie Brown would say.  The computer needed continuity in the old on/off programing in binary language.  When 0 followed 1 the computer wouldn't compute.\n \nWhen people count, it is assumed that zero (or nothing) comes first before we have something (1).  But we couldn't use it as a placeholder, because one is a single unit.  There is nothing to hold a place for.  10 is another situation.  Zero is holding an empty unit spot.\n\nYou can have the shovel now, I think I've dug a deep enough hole. (0)  Chuckle.
89047
Logarithms were invented by a Scottish nobleman named John Napier who lived from (1550-1617). They are now used in many business applications. Back when first invented they were used as a labor saving method do to mathematics. They are also one of the only ways to find the cubed route of a number without a calculator.
625847
I believe that it was proven that the meso american societies of the aztecs, incas, or mayans used a numerical system with a  zero. You may want to check wikipedia