Modern CPUs consist of millions of transistors (even billions now!) and cannot possibly be duplicated at home. But a simple CPU (say, a Z80, for example) has only 8500 transistors. Computers in the past (such as many of the IBM mainframe computers) were actually built with discrete 4000 ...
Because computer source code is also just a string of 1’s and 0’s, we can also use hash functions on computer source code, too. This allows us to quickly spot changes in code bases. When multiple developers work together, every contribution gets hashed with the previous contribution’s h...