Question:
how can the computer tell what this string of binary numbers is used for?
arr_yns
2009-07-05 16:59:52 UTC
please help me. i need to make a presentation on this question. and it is important.how can the computer tell what this string of binary numbers is used for. answer please if any body knows. pleassssee
Five answers:
2009-07-05 17:21:58 UTC
Please ignore the 'horde' poster above.



Binary is not complicated, it is a base 2 number system in which a bit (binary digit) is either a 1 or a 0 (or on or off).



The computer doesn't automatically know what a string of bits is, it relies on software to interpret it. This software can be broken down into bits however, strings of bits form processor opcodes which dictate how the processor is to act.



Hope this helps.
2009-07-05 17:23:23 UTC
The binary numbers (1s and 0s) are combined in the computer to form larger numbers. It is typically predecided how many binary numbers form a larger number. This amount is typically 8. 8 binary numbers (bits) make up a single larger number (byte).



http://en.wikipedia.org/wiki/Binary_numeral_system



Now the computer has a series of larger numbers that are as small as 0 or as large as 256. Then each of these numbers can have a meaning predecided upon by whoever made the system.



Note that it is critical that a computer knows the beginning of the numbers. If you drop the first 1 or 0 in a string of binary numbers then the meaning is changed completely because the groups all get shifted over.



Look at this graph



| - 167 - | - 60 - | - 170 - |

10100111 00111100 10101010



Note for storing text and letters, people created a system to convert from a byte (0 - 256) into a ordinary letter. There are many different systems in use, on of the common ones is ASCII



http://www.ascii.cl/
2009-07-05 17:16:34 UTC
The instructions actually map to hardware in the CPU chip. To make up an example, if the 4th bit is a 1, the instruction is to add something. If the 11th bit is a one, it's to be done (whatever is being done, adding in this case) to the X register. So an instruction with the 4th and eleventh biot set to 1 would be ADD X to humans.



That's terribly simplistic, but sort of how it works.
defender of the horde!!!
2009-07-05 17:11:40 UTC
which string of binary numbers? computers communicate with each other using binary... they automatically know how to interpret strings of binary, because encoded in that string is the instructions on how to interpret it and what to do with it. binary is a complicated thing. hope that helps.;)
pavolini
2016-10-08 12:14:45 UTC
difficulty-loose answer: off, on, off, on, on, off, on, off Binary is how the processor reads alerts. 0 is "off", a million is "on". the way it is interpreted varies with despite application and particular command you gave the computer. some translations of the string "01011010" are as follows: textual content textile: Z Hexidecimal: 5a Base64 MIME Encoding: Wg== Decimal: ninety


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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