Difference Between Buffering and Caching
In general, buffering is the process of keeping data in a section of memory until the data is transported from one place to another. Buffering is the process used to move data between the processes. Typically buffering is required when there is a difference between the speed in which data is received and the data is processed. Hiding is the process of storing data in a separate area (called the cache) as they could be accessed more quickly if the same data is requested in the future. On a data request, the first thing checked for availability is the cache. If the data is present in the cache, the request can be satisfied more quickly.
What is Buffering?
Buffering is the process to keep data in an area of memory until the data is transported from one place to another. This memory part is called buffer. The main use of buffering is when data processing speed is different from the speed at which data is received. Although buffering can be implemented using hardware buffers or bumpers software but software buffers are the most widely used. Printer spooler is where buffering is widely used, being run off-line video and telecommunications (for transferring data from one device to another).
What is Cache?
Caching can be defines as a mechanism of storing data in a separate area (called the cache) so that they could be accessed more quickly if the same data is requested in the future. When some data is requested, the cache is first checked to see if it contains data. If the data is already in the cache, it is called a cache hit. The data can be retrieved from the cache, which is much faster than recovering the data from the original storage area. If data are not in the cache, it is known as cache miss. The data then must be fetched from the original storage area, which would take a more time. Caching has variety of uses. In the CPU, it is used to improve performance by reducing the time taken to receive data from main memory. In web browsers, web cache is used to save the responses of previous visits to websites, to make future visits quicker.
What is the difference between buffering and Caching?
Buffering and Caching store data temporarily in a different place but they have some substantial differences. Caching is best utilized when data is to be accessed from a slow storage device. Same data may be accessed more than one time and keeping them in the cache would reduce access time significantly. Buffering is mostly used to overcome the difference between the rates at which data is received and the data is processed by a gadget.