RAM和内存寻址

Question

我正在准备考试，这道题我有点糊涂了

A computer system has a RAM containing 64k bytes, each of which needs its own distinct
address.  Moreover it has 4 peripherals and they each require 2^4 distinct addresses
in order to interface properly. 
a) How many distinct addresses in total are necessary in this system? Write the total 
   number. 

这道题我得了65600分

b) Place the number of addresses just computer between the appropriate poweres of two
   in the expression on the left, by writing the correct exponent.(example: if your 
   answer is 18 you would put 2^<18<2^5.)

这个是2^16 <65600 & lt;2 ^ 17

c)How many lines does an address bus for this system rquire, given that it must
  be able to carry all the needed values for the address?

和我在这个问题上迷路了。

任何帮助都是非常感激的，我希望我贴了正确的标签。

Answer 1

对于c)，您可以只写17。从b)，你知道地址需要严格地大于16位，小于17位。因此，显然，16个地址行是不够的，17是可以容纳所有地址值的最小值(尽管它可以表示比您需要的更多的地址值)。