Suppose that you buy a 64bit pc with 4gb of ram What is the

Solution

64 bit mode can internally store 64 bit addresses.

First convert 4gb as follows

we know that 1GB=2^30

4GB=4*1GB

=4*2^30

=2^32 =160000000 base 16

then the last byte of installed memory is 000000010FFFFFFF