Morris Mano Numerical Chapter 12 Question 5

Question

A computer employs RAM chips of 256 $\times$ 8 and ROM chips of 1024 $\times$ 8. The computer system needs 2K bytes of RAM, 4K bytes of ROM and four interface units, each with four registers. A memory-mapped I/O configuration is used. The two highest-order bits of the address bus are assigned 00 for RAM, 01 for ROM and 10 for interface registers.

• A. How many RAM and ROM chips are needed?
• B. Draw a memory-address map for the system.
• C. Give the address ranges in hex for RAM, ROM and interface.
• D. Show the interconnection of CPU and the chips.

Answer 1

Answer to parts (i), (ii) and (iii) are here:

https://www.scribd.com/doc/23675579/Sheet-5

Comments

but that doesnot mean i disrespect anyone,, i am very polite with everyone and respect everyone.

it was just that i was not understanding something thats reason of downvoting,

anyway sir please tell me this question also

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its okay no problem..and i am not sir(like arjun sir here)  i am a fellow aspirant

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@Arjun should we really take care of this type of question, or just ignore it?