What is total amount of memory in a 16-bit address bus in units of K?

A 16-bit address bus can address (2^{16}) memory locations, which equals 65,536 locations. Since each location typically represents one byte, the total memory is 65,536 bytes. To convert this into kilobytes (K), divide by 1,024, resulting in 64 K. Thus, a 16-bit address bus can address a total of 64 Kbytes of memory.