Learn and Master C Programming - register' keyword in C

The video tutorial explains the use of the 'register' keyword in programming, which suggests storing variables in CPU registers for faster access compared to RAM. It provides an example using a loop counter and highlights the limitations, such as the inability to use the address-of operator on register variables. The tutorial emphasizes that using 'register' is a recommendation to the compiler, which ultimately decides whether to store a variable in a register based on availability and necessity.

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