An external storage device is a device that contains all the addressable storage that is not inside computers main memory. It has types including removable and non-removable, permanent and non-permanent. External storage is often used to store information that's accessed less frequently by applications running on a desktop, laptop, server or mobile devices, such as an Android or iOS smartphone or tablet. When moving large amounts of data to the cloud, providers will usually use external storage devices in a practice commonly referred to as cloud seeding. Pipelining is an implementation technique in which more than one instruction is overlapped in execution. The computer pipeline is divided into stages. Each stage performs and finishes a part of an instruction in parallel. The stages are related and connected one to the next to form a pipe - instructions enter at one end, progress through the stages, and exit at the other end. Pipelining does not decrease the time span essential for individual instruction execution. Instead, it enhances instruction throughput. The throughput of the instruction pipeline is estimated and evaluated by how often an instruction exits the pipeline. Under these constraints, the progress rate from pipelining equals the number of pipe stages. Usually, the stages will not be accurately well balanced; besides, the pipelining itself involves some overlook on the inner aspect. Pipelining is usually viewed as reducing the C.P.I. (Cycles Per Interval)