Chapter 8 in brief


#1

A computer is, as its core, a processor(the Central Processing Unit or CPU) & a vast meadow of switches(the Random Access Memory or RAM) that can be turned on or off by the processor. We say that each switch holds one bit of information. Eight of these switches make a byte of information. The processor can fetch the state of these switches, do operation on the bits, and store the result in another set of switches.
Variable’s address: The address of a variable is the location in memory where the value for that variable is stored. To get the variable’s address, we use the & operator.
Pointers are also called references. Using pointer to read date at the address is sometimes called dereferencing the pointer.
sizeof: The sizeof() function returns the value of type size_t.
Note2: modf() from #incude <math.h>