What are the types of operating systems?

• Command-line interface- Users type instructions at the keyboard, one line at a time.

          Examples MS-DOS, PC DOS, UNIX

• Graphical user interface (GUI) – Users choose items from menus by using a pointing device to click on icons which represent resources and commands. Examples Windows, Mac OS

What is an operating system?

System software that . . .

• Coordinates the various functions of the computer’s hardware

• Provide utility programs for optimizing computer performance

History of microcomputers

An Evolving Idea

Charles Babbage, lady Lovelace, and the Mother of All Computers

Brief History of Computers

First Digital computer in the world

Graphical user interface

Command-line interface

What are the different types of software?

What are the different types of computers?

What are internet services?

What are communications devices?

What are storage devices?

What are processing devices?

What are ouput devices?

What are the computer's physical components?

What are input devices?

What is the internet?

What is storage?