Arrange in hierarchical order by date the following inventions: I. - Census machine; Il. - Abacus; lll. - Slide rule; IV.- Difference engine.

The census machine was invented by?

The "collection of the unorganized facts and figures" is called?

The copyright law is used to protect?

A graph plotter is most suited for use in a/an?

A set of programs, routines and procedures that are used to operate the computer hardware is called?

Which of the following can be used to write a high level program source code?

A computer that requests the services of another computer on a network is called a?

The available page orientation in Microsoft Word are?