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Understanding computer numbering systems
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| Binary number system | |
| https://www.youtube.com/watch?v=ry1hpm1GXVI | |
| Why binary? | |
| https://www.youtube.com/watch?v=1sWCBgGALXE | |
| 8-bits = 1 byte | |
| 8-bits (aka 1 bytes) is amount needed for 1 of the 255 asci charactors | |
| 2^7 | 2^6|2^5 |2^4 |2^3|2^2|2^1|2^0 | |
| 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 (max number = 255) | |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | |
| num=161 | |
| "The main reason why we use hexadecimal numbers is because it is much easier to express binary number representations in hex than it is in any other base number system." | |
| http://digiassn.blogspot.com/2006/02/why-do-we-use-hexadecimal.html | |
| Hex | |
| 16^7 | 16^6|16^5 |16^4 |16^3 | 16^2 | 16^1 | 16^0 | |
| 4294967296 | | | | 65536 | 4096 | 256 | 1 | |
| 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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