Hardware Questions

Q:

How many logical drives is it possible to fit onto a physical disk?

Answer

Maximum of 24 logical drives. The extended partition can only have 23 logical drives.

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3 5107
Q:

Draw a Transmission Gate-based D-Latch?

Answer

The Transmission-Gate's input is connected to the D_LATCH data input (D), the control input to the Transmission-Gate is connected to the D-Latch enable inputs (EN) and the Transmission-Gate outputs is the D_LATCH output(Q)

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Q:

What does microprocessor speed depend on?

Answer

the processing speed depends on DATA BUS WIDTH.

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Q:

What does RSI stand for?

Answer

 


Repetitive Strain Injury

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1 2859
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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Q:

Where does the Real mode on the CPU come from?

Answer

The original 8086, which only had 1 MB of memory. This megabyte is split into low memory for IRQ tables, application memory and high memory.

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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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Q:

Give an example of one address microprocessor?

Answer

8085 is a one address microprocessor. In 8085 interrupts  are classified by software and hardware interrupts.

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