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There are various limitations of primary memory like limited capacity which is its not enough to store a very large volume of data and volatility which is when power is turned off data stored is lost. So Secondary storage system should provide large storage capacities, low cost per bit as well as medium access times. Magnetic media have been used for these purposes for a long time. Current magnetic data storage devices take form of floppy disks in addition hard disks and are used as secondary storage devices. However audio and video media either in compressed form or uncompressed form need higher storage capacity than other media forms and storage cost for these kinds of media is considerably higher.
Optical storage devices provide a higher storage density at a lower cost. CD-ROM can be used as optical storage device. Many software companies provide both operating system and application software on CD-ROM today. This technology has been main catalyst for development of multimedia in computing since it is used in multimedia external devices like video recorders and digital recorders (Digital Audio Tape) that can be used for multimedia systems.
Removable disk, tape cartridges are other forms of secondary storage devices are used for back-up purposes having higher storage density and higher transfer rate.
Storing a word in Memory: That is similar process with fetching a word from memory. The required address is loaded into the MAR After that data to be written are lo
Define Handshaking. Handshaking is a method commonly used to accompany ever data item being transfer with the control signal that show the presence of data in the bus. The unit
State the optimal route of node Consider the node i which has path length K+1, with the directly preceding node on the path being j. The distance to node i is w(j, i) plus the
Convert the following into SOP form 1. (A+B) (B'+C) (A'+ C) 2. (A'+C) (A'+B'+C') (A+B') 3. (A+C) (AB'+AC) (A'C'+B)
What are the types of container classes in C++? Ans) A container class is a class that is used to hold objects in memory/external storage. A container class behaves as a ge
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Using Information in Information System Information Systems can be thought of as being useful at three levels: The detail level where information is used to carry out disc
Bitmaps commonly use one bitmap for each single distinct value. Number of bitmaps used can be decreased by opting for a dissimilar type of encoding. Space can be optimized but when
Stack unwinding in C++ is a process during exception handling when the destructor is known for all local objects the place where the exception was thrown and where it is caught.
Difference between the testing and verification. Verification proves conformance with a specification. Testing tries to find cases where the system does not meet its specifi
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