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q illustration of cache size of a systemcache size cache memory is very costly as compared to main memory and therefore its size is generally kept
q what is cache memorycache memory is a very fast and small memory between cpu and main memory whose access time is closer to processing speed of cpu
q why are high-speed memories required is the main memory not a high-speed memory the answer to second question is absolutely no though why so then
q illustrate basic strategy used in raidbasic strategy used in raid is to replace large capacity disk drive with multiple smaller capacity disks data
what is redundant array of independent disksresearchers are constantly trying to improve secondary storage media by raising their performance
q illustrate working of magnetic bubble memoriesin many materials like garnets on applying magnetic fields certain cylindrical areas whose direction
q what is charge-coupled devicesccds are employed for storing information they have arrays of cells that can hold charge packets of electron a word
q explain working of digital versatile diskwith the capacious digital versatile disk dvd electronics industry has ultimately found an acceptable
q illustrate about compact disk rewritablecd-rw optical disk can be repeatedly written and overwritten same as with a magnetic disk even though a
q what is compact disk recordableto accommodate applications in which just one or a small number of copies of a set data is required write-once
q what is drawbacks of cd- romdrawbacks of cd- rom are as below1 it is read-only and cant be updated2 it has an access time much longer than magnetic
q benefits of traditional hard disks and cd-romcd-rom is suitable for distribution of large amounts of data to a large number of users cd-roms are a
q features of read-only memoryroms are memories on which its not possible to write data when they are on-line to computer they can only be read this
q what is typical storage hierarchya typical storage hierarchy is displayed in figure above though figure shows only block diagram however it
q fundamental types of flash memorycode storage flash which is made by intel amd atmel it stores programming algorithms and it is largely found in
q what is flash memorythis memory is other form of semiconductor memory that was first introduced in mid-1980 these memories can be reprogrammed
it is desirable that operating speed of primary storage of a computer system be as fast as possible since most of the data transfer to and from
q basic working of hard disk drivethis is one of the components of todays personal computer having a capacity of order of quite a lot of giga bytes
q explain about magnetic diska disk is circular platter constructed of nonmagnetic material known as substrate coated with a magnetisable material
q how to access the disk datadisks operate is semi-random mode of operation and generally referenced block wise the data access time on a disk
q illustrate when are intermolecular forces the strongestanswer-intermolecular forces dispersion and dipole-dipole and hydrogen bonds these forces
q can a vector have a component equivalent to zero and still have a nonzero magnitudeanswer-yes for example the 2-dimensional vector 1 0 has length
q if a plane is in the air also there is a fly flying inside the plane does the plane get heavier when the fly landsanswer-it is true that a fly puts
q illustration what is the cause of brownian motionanswer-molecules in a gas move freely randomly constantly in all directions and at high speeds
q how do you split hydrogen and oxygen gases in industrial electrolysis of water processanswer-in oxygen electrolysis and hydrogen gas are produced