Some people call these instructions assemble language and others use the term assembly language. A compiler is a special program that processes statements written in a particular programming language and turns them into maching language that a computer uses. It describes any operation, program, or device that transfers data to or from a computer. With computers, to parse is to divide a computer language statement into parts that can be made useful for the computer. A parser in a program statement that a developer has written and divides it into parts that can then be used for developing further actions or for creating the instructions that form an executable program.
Secondary storage is data on the hard disk, tapes and other external devices.
Structure A tree structure is an algorithm for placing and locating filesin a database. The algorithm finds data by repeatedly making choices at decision points called nodes. A node can have as few as two branches or as many as several dozen.