Suppose that a 64 Mega x 16 bits main memory is built using 16M x 8 bits chips of RAM and memory is word addressable. a. How many RAM chips are necessary? ______ b. How many RAM chips are needed for each memory word? _______ c. How many address bits are needed for each RAM chip? _______ d. How many address bits are needed for all memory? _______

Suppose that a 64 Mega x 16 bits main memory is built using 16M x 8 bits chips of RAM and memory is word addressable. a. How many RAM chips are necessary? __ b. How many RAM chips are needed for each memory word? _ c. How many address bits are needed for each RAM chip? _ d. How many address bits are needed for all memory? ___

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter5: Data Storage Technology

Section: Chapter Questions

Problem 2PE

See similar textbooks

Similar questions

If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the fetch cycle is 40% of the processor cycle time, what memory access speed is required to implement load operations with zero wait states and load operations with two wait states?
LI is the fastest type of cache memory built into a computer, faster even than DDR4 SDRAM memory. True or False?
Suppose that a 2M × 16 main memory is built using 256K × 8 RAM chips and that memory is word addressable.1. a) How many RAM chips are necessary?2. b) If we were accessing one full word, how many chips would be involved? 3. c) How many address bits are needed for each RAM chip?4. d) How many banks will this memory have?5. e) How many address bits are needed for all memory?6. f) If high-order interleaving is used, where would address 14 (which is E in hex) be located?7. g) Repeat exercise 9f for low-order interleaving.
Suppose that a 64M x 16 main memory is built using 512K × 8 RAM chips and memory is word-addressable. a) How many RAM chips are necessary?b) If we were accessing one full word, how many chips would be involved?c) How many address bits are needed for each RAM chip?d) How many banks will this memory have?e) How many address bits are needed for all of memory?f) If high-order interleaving is used, where would address 32(base 10) be located? (Your answer should be "Bank#, Offset#")g) Repeat (f) for low-order interleaving.
Suppose that 16M × 16 memory built using 512K × 8 RAM chips and that memory is word addressable.1. a) How many RAM chips are necessary?2. b) If we were accessing one full word, how many chips would be involved? 3. c) How many address bits are needed for each RAM chip?4. d) How many banks will this memory have?5. e) How many address bits are needed for all memory?6. f) If high-order interleaving is used, where would address 14 (which is E in hex) be located?7. g) Repeat exercise 9f for low-order interleaving.
Suppose that a 4M × 32 main memory is built using 128K × 8 RAM chips and memory is word addressable (word size = 32 bits)a. How many RAM chips are needed?b. How many chips would be involved when accessing a full word?c. How many banks will this memory have?d. How many address bits are needed for the whole main memory?e. If high-order interleaving is used, where would the address 7060016 be located (in which bank)?f. If low-order interleaving is used, where would the address 2C77D516 be located?
When it comes to memory addresses, what is the difference between virtual memory addresses and physical memory addresses? Which is the bigger of the two? Why? When it comes to virtual memory, what are the benefits and disadvantages?
We want to build a word organized main memory of 8 GB for a 32-bit CPU architecture composed of word organized memory modules of 30-bit address and 8-bit data buses each. a) Draw the interface of the main memory by clearly indicating the widths of the buses. b) Howmanymemorymoduleswouldbenecessarytobuildthememorysystem? c) Design the main memory internal organization built out of the above memory modules (use multiplexers and/or decoders as needed) by clearly indicating the widths of the used busses d) CanweusethismemorysystemasRAMfortheCPUinProblem1?Explainyouranswer.
Assume a 2^20 byte memory (2^20 x 8):A. What are the lowest and highest addresses if memory is byte-addressable?B. What are the lowest and highest addresses if memory is word-addressable, assuming a16-bit word?C. What are the lowest and highest addresses if memory is word-addressable, assuming a32-bit word?
64-bit CPUs with 64-bit address buses can access 264 bytes of memory at a time. Do you think the need for virtual memory would go away if enough physical memory could be added to these systems in a cost-effective way? Say what you think about it.
What is the difference between virtual memory addresses and physical memory addresses when it comes to memory addresses? Which of the two is the larger? Why? What are the pros and downsides of using virtual memory?
Q2 . A computer employs RAM chips of 512 x 8 and ROM chips of 256 x 8. The computer system needs 1K bytes of RAM, 2K bytes of ROM, and eight interface units, each with 2 registers. A memory-mapped 1/0 configuration is used. The two highest-order bits of the 16 bit address bus are assigned 10 for RAM, 11 for ROM, and 00 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 range in hexadecimal for RAM, ROM, and interface.