Explain program interpretation process.

In a program interpretation process, the interpreter reads the source program and stores this in its memory. This bridges an execution gap without making a machine language program therefore we can say that the interpreter is a language translator. Although, this takes one statement of higher-level language at a time, translates this in machine language and executes this immediately. Translation and execution are continued for each statement. The absence of a target program means the absence of an outer interface of the interpreter. Therefore language-processing activity of an interpreter can't be separated by its program execution activities. Therefore we can say that interpreter executes a program written into a programming language. In essence, the execution gap vanishes. Subsequent figure depicts the program interpretation model.