What are the software is there ? their uses

Computer software is programming code executed on a computer processor. The code can be machine-level code, or code written for an operating system. An operating system is software intended to provide a predictable and dependable layer for other programmers to build other software on, which are known as applications.

answer; ///identify and locate the

look at the engine block shown in the figure. the engine shown in this figure is a/an  

  a. four-cylinder, horizontally opposed engine.

  b. eight-cylinder, v-type engine.

  c. six-cylinder, v-type engine.

  d. four-cylinder, in-line engine