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What is the base 2 system?
It is often called Binary. There are only 2 symbols, usually "0" and "1". Digital devices often use Binary.
Where hexa decimal number is used?
These are used quite often to represent values stored in bytes - 1 byte is represented as two hexadecimal digits. For example, both the MAC address of a network card and the new IP addresses (IPv6) are usually shown as hexadecimal.
When was binary invented?
The idea of binary code came about in the late 1600s and is often credited to Gottfried Leibniz , a German mathematician and all round clever person. Francis Bacon was using a binary code with letters of the alphabet as a cipher, so aaab aabb etc exactly the same as binary, this is in his book The Advancement of Learning.
How many different numbers are used in the hexadecimal system?
Hexadecimal numbers are used in computing for the convenience of humans since the computer really only understands pure binary. Hex is much more compact than binary since it is based on 16 (the fourth power of 2) instead of 2. Pure binary numbers based on 2 can quickly become unwieldy to write. For example, the three-digit decimal number 513 requires ten digits in pure binary (1000000001) but only three (201) in hex. Representing hex numbers requires sixteen distinct characters compared to the ten used in decimal notation. The sixteen characters that are used are the ten numeric symbols, 0-9, and the first six letters of the alphabet, A-F. The letters are often, but not always, capitalized. Thus, the first ten numbers 0-9 are written the same in both decimal and hex and the equivalents of the decimal numbers 10-15 are indicated by a single letter, ranging from A to F Decimal - Hex 0 - 0 1 - 1 2 - 2 3 - 3 4 - 4 5 - 5 6 - 6 7 - 7 8 - 8 9 - 9 10 - A 11 - B 12 - C 13 - D 14 - E 15 - F 16 -10 17 - 11 18 - 12 19 - 13 20 - 14
What does the word base mean in math?
In a power, such as 25, the number 2 is called the "base", the number 5 is the "exponent".On the other hand, decimal numbers use the "base" 10 (this is also somewhat related to powers, but I won't go into details); instead of the base 10, other bases can be used as well (any integer equal to, or greater than, 2).Base is the number system used. Base 2 has but 0 and 1 (binary)Most often we use Base 10: 0,1,2,3,4,5,6,7,8,9In computers Hexadecimal, Base 16 is common too: 0,1,23,4,5,6,7,8,9,A,B,C,D,E(and even octal, Base 8)To define the base use a subscript:110112 = 338 = 2710 = 1B16
