1. How the cashe memory spped up the execution ?

2. What is belady's anomaly?

3. What is anomalus expansion of water?

4. Why water boils at low temparature in Mount Abu?

5. Why fish in cold countries survive even at very low temparature of -20 degree Centigrade.?

 

 

1. The cache memory is high-speed memory available inside the CPU in order to speed up access to data and instructions stored in RAM memory. ie, Data stored in the main memory, when we findout a data from the memory control of the cpu will transfer to memory and find the data. In case the data is access more than one time the data will stored in the cache memory for easy accessing.For example in your shelf you arrange your coths in a one rack. Your daily used cloths are placed in top of the rack for easy to access. The same process is done in cache memory. 

1. The cashe memory follows the basic principle of locality of reference,which means the most recently and frequently used data and instruction are stored very close to processor and they are not removed and furher if a code or data is used there is a chance to demand  the code or data very nearest to the current one, and these code or data is already fetched and stored in the cashe in advance and thus processoer are seldom starved, which in turn speed up execution.

As we know, at higher altitude atmospheric pressure decrese. When we heat water the water molecules absorbe that heat energy and the internal pressure of water increase. When this internal pressure of water reaches atmospheric pressure, water starts boiling and water molecule start to evaporate, as it overcomes external pressure exerted by atmosphere on the water molecules. Now, if we boil water at any high altitude area, hence having lower pressure of atmospheric air, as per the same logic of water boiling, it starts to boil at lower temperature, as this time water molecules need relatively lower internal energy to overcome atmospheric pressure.