What is the usefulness of standards from the perspective of interoperability of systems manufactured by different entities? What are the advantages of "proprietary" systems offered by some manufacture's that do not conform to industry-wide standards?

Design a 32 bit adder using a single 4 bit adder using verilog code

what is difference

Full duplex, half duplex, simplex

Priority of Interrupts
i. Priority values – high priority/low number

User defined interrupts

How does a high priority interrupt impact the execution of a lower priority

interrupt?

Polling and Interrupts
1. Initialization of a Port

a. Steps that are required

LDR, POP, STR, PUSH, MOV

What is the difference between them?

1(a) Discuss the differences that exist between sources of electrostatic, magnetostatic and electromagnetic fields. Successively, with the aid of figures and the appropriate mathematical equations, derive model for the sources of a magnetostatic field.

(b) A solid conductor of circular cross section with a radius of 5 mm has a conductivity (?) that varies with radius. The conductor is 20 m long, and there is a potential difference of 0.1 V between its two ends. Within the conductor, H=105r2 ? A/m. Find ? as a function of r.

2(a) The magnetic field intensity is given in certain region of space as H=[(x+2y)z2]y+(2z)z A/m.

(i) Find J.

(ii) Use J to find the total current passing through the surface z = 4, 1 < x < 2, 3 < y < 5, in the z direction.

(b) Consider a circular disk having a radius of 0.5 m. A surface current of Js(r)=16r ? A/m flows on the surface of the disk. The center of the disk coincides with the origin, and the disk is oriented in the xy plane. Find the magnetic field intensity at z = b on the z axis and let b > 0.

Summary formula for BJT transistor for NPN and PNP with circuit , explain how it work and difference between npn and pnp.

Design a 32 bit after using a single 4 bit using verilog code

Optimal and near-optimal process scheduling and page replacement algorithms.

a) What is the theoretically best process scheduling algorithm?

b) Do shortest job first and shortest remaining time first amount to the same thing or not?

c) Can they be directly implemented?

d) What do you consider the next best scheduling option, and how does it use the recent past to approximate the ideal case?

e) Consider the analogous case in page replacement. What is the best possible choice of page to replace?

f) Can this be known? If not, what is the best approximation of the ideal case, and how does it use knowledge of the recent past to implement it?

g) What is the overhead involved in keeping track of the recent past in the case of page replacement?

What are the rules as per the NEC providing overcurrent protection when utilizing autotransformers?

How is it possible for a (Buck-Boost) Transformer to operate a KVA load many times larger than the transformers KVA rating?

What distinguishes an Autotransformer (Buck-Boost) connection from a standard distribution transformer connection?

Thread scheduling at the process level and at the kernel level. This topic requires more work on my part and I will give an updated draft. There may be more than one question here. Review the different allocation policies for kernel threads in relation to user threads – one to one, many to one, many to many, hybrid. These are sometimes referred to as an “M:N ratio” where M is the number of user threads and N is the number of kernel threads.

a) How is the choice between “process scope” (P) and“system scope” (S) related to these options? If “process scope” is chosen, where does the responsibility lie for scheduling threads?

b) How does Posix implement scheduling at the user thread level? If “system scope” (S) is chosen, does the programmer have any control over the scheduling of her threads?