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Q:

What are the blocking and non-blocking assignments in Verilog and which is preferred in Sequential Circutis?

Answer

A blocking assignment is one in which the statements are executed sequentially, i.e., first statement is executed and variable is assigned  a value then second is executed and so on. A non blocking assignment is  one in which statements occurs conturrently, only non blocking assignments should be used in sequential circuit.


 


e.g.


initial


begin


a=b; //blocking


c<=a; //nonblocking


d=c; // blocking


end


 


In this example firstly the value of b is assigned to a and this value is assigned to c only after execution of first statement. the second and the third statements are executed simultaneously, i.e. value a ais assigned to c and previous value if c is assigned to d.

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Subject: Hardware

Q:

The car dealer found that there was a tremendous response for the new XYZ's car-booking with long queues of people complaining about the duration of business hours and arrangements.

 

Courses of Action: 

 I. People should make their arrangement of lunch and snacks while going for car XYZ's booking and be ready to spend several hours.

II. Arrangement should be made for more booking desks and increased business hours to serve more people in less time.

A) Only I follows B) Only II follows
C) Neither I nor II follows D) Both I and II follow
 
Answer & Explanation Answer: B) Only II follows

Explanation:

Seeing the tremendous response, the dealer must make suitable arrangements and deploy more personnel to take care of customers so that they don't have to wait excessively long for booking. So, only course II follows.

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Filed Under: Statement and Courses of Action

Q:

Why address bus in unidirectional and data bus is bidirectional?

Answer

Because there is no need address traansaction between processor and peripheral device but data bus is needed because data has to be read and write

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Subject: Hardware

Q:

Why the temporary registers W and Z are named so i mean we start from A, B, C, D, E then H and L coz H stands for higher bit and L for lower bit of the address pinted by memory pointer.. but wats W and Z for?

Answer

As W and Z alphabets are not widely used similarly as W and Z is internally used they would have been named so

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Subject: Hardware

Q:

What is the logical difference b/w Move A to B and COMPUTE B=A?

Answer

In case of Move A to B it will move whatever the value of A into B.It mean it will move numeric, alphanumeric and alphabatic value.


In case of COMPUTE B=A it will assign the value of A into B. But in case of compute only numeric value will be compute.

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Subject: Hardware

Q:

What are the minimal cost and minimal risk solution?

Answer

In binary representation there are some states that believed to be never occurred due to some particular functionality of a given circuit. If zero output is assigned to such states then it is called minimal risk solution as  we are resetting the formidable states which could be occurred accidentally. Another approach is to assigned a don't care to them so it results in lesser logic and hence is called minimal cost solution.

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Subject: Hardware

Q:

What are * and? when using them for wildcards in windows?

Answer

* - any characters, aribitary among


? - single character

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Subject: Hardware

Q:

What's the speed and device maximum specs for Firewire?

Answer

IEEE 1394 (Firewire) supports the maximum of 63 connected devices with speeds upto 400 Mbps.

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Subject: Hardware