2. One of the main functions of an operating system is to? a. Use Productivity software
b. provide an interface between the computer and the user.
C. Play games

answer; availability;

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