4. In a microcomputer the address of memory locations are binary numbers that id

Question

4. In a microcomputer the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. The number of bits that make up an address will depend on how many memory locations there are. Since the number of bits can be very large, the addresses are often specified in hex instead of binary. a. If a microcomputer uses a 16-bit address, how many different locations are there? b. What is the hex address of the 256th memory location? 5. Perform each of the following conversions: (123)s- BCD b (625): = ( e (ABCDEF)16

Explanation / Answer

4)

a)your CPU will be able to address 64KB (2^16)

5.

a.)000100100011

1238 = 182+281+380 = 64+16+3 = 8310

8310 = 10100112

b)

6257 = 672+271+570 = 294+14+5 = 31310

31310 = 22235

6257 = 22235

c)

ABCDEF16 = 10165+11164+12163+13162+14161+15160 = 10485760+720896+49152+3328+224+15 = 1125937510

ABCDEF16 = 527467578

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