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Hamming code is a set of error-correction code s that can be used to detect and correct bit errors that can occur when computer data is moved or stored. Hamming code is named for R. W. Hammin. The key to the hamming code is using extra parity bits to allow the identification of errors. We use powers of 2 for parity bits (2,4,8,16...)  Example: 10011010    Bits 1,2,4 and 8 ar skipped because they are powers of 2. bit 1--> check 1 bits skip 1 bits bit2--> check 2 bits skip 1 bits bit 4--> check 4 bits skip 4 bits bit 8 --> check 89 bits skip 8 bits bit 1-->has a even number of 1, so 0 bit2-->has an odd number of 1, so 1 bit 4--> has an odd number of 1, so 1

   The cpu, ram and hard drive are connected by different wires called buses. The "data bus" carry what's the information you use is. Example : song.mp3 The "control bus" explains the computer how to use the information. Example : Play "song.mp3" The "address bus" carry where the information is located inside the computer. Example: "song.mp3" is located in the hard drive, line 7.                                                                                                                                          

https://docs.google.com/presentation/d/19N_r_TwgcwtnbGQzK82Ne-dcT5UGPvhbfFsA13f5g-c/edit?usp=sharing