There is a tremendous growth of the mobile users everywhere which in turn leaded to high bandwidth requirements of new cellular services. But the bandwidth scenario is dependent on limited spectrum resources that have been allocated for mobile communications. Basically, three caching strategies have been discussed in this paper. An adaptive cache invalidation algorithm known as Bit Sequence for client server mobile environment; the next approaches discussed are:- 1. Asynchronous Invalidation Message technique 2. Caching using data replication from servers at the Mobile Host's Home Location Cache, abbreviated as HLC, during the network is wholly disconnected from the network & apparently, it delivers it back the invalidations details to the Mobile Host when it is reconnected; and the final approach is using the fundamentals of Data Replication for Caching strategies. Past few decades have given tremendous growth of research in caching technology of mobile computing. This particular paper is in effort to list few more techniques &particularly classify the research of this fieldin broader sense.

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Caching Strategies In Mobile Computing Or Portable Computing Devices.