Electrical Engineering Answers

Explain the Comparison of 3 mapping techniques between main memory to cache memory in the tabular form. show how and from where CPU will access the word from the cache memory in each mapping technique with the help of diagram. Take the word number as per your roll no. for example if your roll no is 35 than you have to show how and from where CPU will access W35 from the cache memory in case of each mapping technique with the help of diagram. Assume the main memory size as 16 KB, line size 128 bytes, cache size 1K bytes and k value is 4 .

c. Give the address range in hexadecimal for RAM, ROM, and interface.

b. Draw a memory-address map for the system.

(10 Marks)

Q2. A computer employs RAM chips of 128 x 8 and ROM chips of 512 x 8. The computer system needs 1K bytes of RAM, 2K bytes of ROM, and two interface units, each with two registers. A memory-mapped 1/0 configuration is used. The two highest-order bits of the 16 bit address bus are assigned 11 for RAM,

10 for ROM, and 01 for interface registers.

a. How many RAM and ROM chips are needed?

Q3. Explain the Main Memory and its signification in computer system in detail with help of well labeled

diagrams?

(10 Marks)

Explain the Comparison of 3 mapping techniques between main memory to cache memory in the tabular form. show how and from where CPU will access the word from the cache memory in each mapping technique with the help of diagram. Take the word number as per your roll no. for example if your roll no is 35 than you have to show how and from where CPU will access W35 from the cache memory in case of each mapping technique with the help of diagram. Assume the main memory size as 16 KB, line size 128 bytes, cache size 1K bytes and k value is 4 .

Drive the equation of built in potential barrier under zero biased condition. If an abrupt PN junction has dopant concentration of Na=2*10^16 cm^-3 and Nd = 2*10^15 cm^-3 at T=300K calculate Vbi, W at Vr=0v and Vr=8v. also calculate the electric field in space charge region at Vr=0v and Vr=8v.

Consider two p-n silicon junctions at T = 300 K reverse biased at Vr = 5 V. The impurity doping concentrations in junction A are Na = 10^18 cm^-3 and Nd = 10^15 cm^-3 and those in junction B are Na = 10^18 cm^-3 and Nd = 10^16 cm^-3. Calculate the ratio of the following parameters for junction A to junction B: (a) W. (b) Emax and (c) Cj.

Explain the Secondary Memory and its signification in computer system in detail with help of well

labeled diagrams?

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.

Explain the Advantages and disadvantages of 3 mapping techniques between main memory to cache

memory in the tabular form. show how and from where CPU will access the word from the cache

memory in each mapping technique with the help of diagram. Take the word number as per your roll no.

for example if your roll no is 35 than you have to show how and from where CPU will access W35 from

the cache memory with the help of diagram. Assume the main memory size as 8 KB, line size 128 bytes,

cache size 2 K bytes and k value is 2 .