What is the meaning of Scalable architecture in english?

A scalable architecture refers to a system, NETWORK, or process that is designed to handle a workload that may change in SCOPE. Which means the architecture can natively handle such growth, or that enlarging the architecture to handle growth is a trivial part of the original design.

Generally speaking, a computing system whose performance improves proportionally to hardware upgrades is a scalable system. An algorithm, protocol, or program is said to "scale" if it's suitably efficient and PRACTICAL when applied to massive situations. Some of these instances include large data sets, a high NUMBER of users, inputs, OUTPUTS, or nodes in a distributed system, for example.