The document discusses different types of computer input, including data, instructions, programs, commands, and user responses. It describes several common input devices like the keyboard, mouse, touch screens, touch pads, and pen input. The keyboard allows users to enter text, the mouse is a pointing device controlled by hand movements, touch screens are touch-sensitive display screens, and pen input involves using a stylus to write or draw on a flat surface.

1. Your Interactive Guide
to the Digital World
Discovering
Computers 2012

2. What Is Input?
• Input is any data and instructions entered into the
memory of a computer
Discovering Computers 2012: Chapter 5
2Pages 258 – 259
Figure 5-1

3. What Is Input?
Discovering Computers 2012: Chapter 5
3Pages 258 - 259
• Instructions can be entered into the computer in the
form of programs, commands, and user responses
A program is a series of related
instructions that tells a computer what
tasks to perform and how to perform
them
Programs respond to commands that a
user issues
A user response is an instruction a user
issues by replying to a question
displayed by a program

4. What Are Input Devices
An input device
is any hardware
component that
allows users to
enter data and
instructions into
a computer
Discovering Computers 2012: Chapter 5
4Page 260

5. The Keyboard
• A keyboard is an input device that contains keys
users press to enter data and instructions into a
computer
Discovering Computers 2012: Chapter 5
5Page 260
Figure 5-2

6. Mouse
• A mouse is a pointing device that fits under the
palm of your hand comfortably
– Most widely used pointing device on desktop
computers
• A mouse can be wired or wireless
Discovering Computers 2012: Chapter 5
6Pages 263 – 264
Figures 5-6 and 5-7

7. Mouse
• Mouse operations
Discovering Computers 2012: Chapter 5
7Page 264
Figure 5-8
Point Click Right-click Double-click
Triple-click Drag Right-drag
Rotate
wheel
Free-spin
wheel
Press wheel Tilt wheel
Press thumb
button

8. Touch Screens and Touch-Sensitive Pads
• A touch screen is a touch-sensitive display device
Discovering Computers 2012: Chapter 5
8Page 266
Figures 5-12 – 5-13

9. Touch Screens and Touch-Sensitive Pads
Microsoft Surface Touch-sensitive pads
Discovering Computers 2012: Chapter 5
9Page 267
Figures 5-14 – 5-15

10. Pen Input
• With pen input, you touch a stylus or digital pen on a flat
surface to write, draw, or make selections
Discovering Computers 2012: Chapter 5
10Page 268
Figure 5-16