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Introduction to Computers Section 2A Section 2A

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Introduction to Computers

Section 2ASection 2A

homehome

Keyboard

Alphanumeric keys

Modifier keys

Numeric keypad

Function keys

Cursor-movement keys

Special-purpose keys

Click to Click to EnlargeEnlarge

Page 3: Introduction to Computers Section 2A. home Keyboard Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Special-purpose

homehome

How the Computer Accepts Input from the Keyboard

Keyboard controller

Keyboard buffer

Scan code

Interrupt request

Repeat rateClick to Click to EnlargeEnlarge

Click to Click to EnlargeEnlarge

Page 4: Introduction to Computers Section 2A. home Keyboard Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Special-purpose

homehome

The Mouse

An input device that rolls around on a

flat surface and controls the pointer

Page 5: Introduction to Computers Section 2A. home Keyboard Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Special-purpose

homehome

Examples of Mouse Maneuvers

Pointing

Clicking

Double-clicking

Dragging

Right-clicking

Page 6: Introduction to Computers Section 2A. home Keyboard Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Special-purpose

homehome

Mouse Variants

Trackball

Trackpad

Integrated pointing device

Page 7: Introduction to Computers Section 2A. home Keyboard Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Special-purpose

Section 2ASection 2A

Standard Input DevicesStandard Input Devices

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