0
Q:

Which interrupts has the highest priority? 

Answer:



Q:

What are the different hazards? How do you avoid them?

Answer

There are situations, called hazards, that prevent the next insturction in the instruction stream from executing during its designated clock cycle. hazards reduce the performance from the ideal speedup gained by pipelining.


There are three classes of Hazards:


1. Structural hazards: It arise from resource conficts when the hardware cannot support all possible combinations of instructions simultaniously in overlapped execution.


2. Data Hazards: It arise when an instruction depends on the results of previous instruction in a way that is exposed by the overlapping of instructions in the pipeline.


3.control hazards. it arise from the pipelining of branches and other instructions that chage the PC.

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Subject: Hardware

4 1804
Q:

What is MESI?

Answer

The MESI protocol is also known as illinois protocol due to its development the University of illinois at Urbana-Champaign and MESI is a widely used cache coherency and memory coherence protocol.


MESI is the most common which supports write-back cache. its use in personal computers became widespread with the introduction of intel's pentium processor to "support the more efficient write-back cache in addition to the write-through cache previously used by the Intel 486 processor"/

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Subject: Hardware

3 2211
Q:

What are the basic components in a Microprocessor?

Answer

1. Address lines to refer to the address of a block


2. Data lines for data transfer


3. IC chips


4. Processing data

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Subject: Hardware

1 1389
Q:

What does GUI stand for?

Answer

 


Graphical User Interface

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Subject: Hardware

0 1290
Q:

What does RSI stand for?

Answer

 


Repetitive Strain Injury

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Subject: Hardware

1 2396
Q:

What are the best way to prevent a computer virus from entering your computer?

Answer

1.Logout of your computer each time you have finished using it


2.Install and use anti-virus software on your computer 


3.Do not use emails on your machine


4.Make sure all your files are safely stored to your floppy disks

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Subject: Hardware

0 1121
Q:

Where's MBR located on the disk?

Answer

 Main Boot Record is located in sector 0, track 0, head 0, cylinder 0 of the primary active partition.

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Subject: Hardware

0 1345
Q:

What is the name of the law for the storage and use of data in the UK?

Answer

Data Protection Act

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Subject: Hardware

0 1131