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Q. Illustrate the Cache Memory Operation?
It comprises a copy of a part of main memory contents. When a program is running and CPU tries to read a word of memory (instruction or data) a check is made to decide if word is in cache. If so that word is delivered to CPU from cache. If not then a block of main memory comprising some fixed number of words including requested word is read in the cache and then requested word is delivered to CPU. Due to the feature of locality of reference when a block of memory word is fetched in cache to satisfy a single memory reference it is expected that there will soon be references to other words in that block. Which is the next time CPU attempts to read a word it's very probable that it finds it in cache and saves time required to read word from main memory.
Various computer systems are designed to have two separate cache memories known as data cache and instruction cache. Instruction cache is used for storing program instruction and data cache is used for storing data. This allows faster identification of availability of accessed word in cache memory as well as it helps in further improving processor speed. Several computer systems are also designed to have multiple levels of caches (like level one and level two caches generally referred to as L1 and L2 caches). L1 cache is smaller than L2 cache and is used to store more often accessed data/instruction as compared to those in L2 cache.
Describe Real and protected mode: Operation of Real mode interrupt: When microprocessor completes executing the current instruction, it concludes whether an interrupt is act
Q. Explain Basic working of Mainframes? Mainframe computers are normally 32-bit machines or higher. These are suited to large organizations, to manage high volume applications.
how to write this program,what are the declaration and function are needed in java program in java // aakash , suraj , prem sasi kumar kamaraj college program 1 : pack
Q. Explain about Interrupt Cycle? On completion of execute cycle the current instruction execution gets completed. At this point a test is made to conclude whether any enabled
Q. Find simplified function F and implement that function using only NAND gates. 1. F(A,B,C) = (A+B) (A'+B+C') (A'+B'+C') 2. F (A,B,C) = A'B'C'+B'CD'+A'BCD'+AB'C' 3. F(X,Y
Dynamic screen sequence for a screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.
What are the different tones used in strowger telephony? Explain with the help of waveforms and the timings. Dial Tone: it is used to indicate that the exchange is ready to r
Perceptron training: Here the weights are initially assigned randomly and training examples are needed one after another to tweak the weights in the network. Means all the exa
Process of Minimax algorithm: Our aim is just to write the best of best score on the top branches of the tree that player one can guarantee to score if he chooses that move.
8085 the interrupts are classified as Software and Hardware interrupts.
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