section 2 a Standard Input Devices This lesson

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section 2 a Standard Input Devices

section 2 a Standard Input Devices

This lesson includes the following sectio · The Keyboard · The Mouse · Variants

This lesson includes the following sectio · The Keyboard · The Mouse · Variants of the Mouse

The Keyboard • The Standard Keyboard Layout • Ergonomic Keyboards • How a Keyboard

The Keyboard • The Standard Keyboard Layout • Ergonomic Keyboards • How a Keyboard Works

The Keyboard - Standard Keyboard Layout • A standard computer keyboard has about 100

The Keyboard - Standard Keyboard Layout • A standard computer keyboard has about 100 keys. • Most keyboards use the QWERTY layout, named for the first six keys in the top row of letters.

The Keyboard - Standard Keyboard Layout Most keyboards have keys arranged in five groups:

The Keyboard - Standard Keyboard Layout Most keyboards have keys arranged in five groups: 1. Alphanumeric keys 2. Numeric keypad 3. Function keys 4. Modifier keys 5. Cursor-movement keys

ACADEMIC RECORDS Password* * * ENTER Invalid Password

ACADEMIC RECORDS Password* * * ENTER Invalid Password

The Keyboard - Ergonomic Keyboards • Long periods of keyboard use can cause injuries.

The Keyboard - Ergonomic Keyboards • Long periods of keyboard use can cause injuries. • An ergonomically correct keyboard can help you avoid injuries. • You also can avoid injuries by adopting correct keyboarding practices.

The Keyboard - How a Keyboard Works When you press a key: • The

The Keyboard - How a Keyboard Works When you press a key: • The keyboard controller detects the keystroke. • The controller places a scan code in the keyboard buffer, indicating which key was pressed. • The keyboard sends the computer an interrupt request, telling the CPU to accept the keystroke.

The Mouse • What is a Mouse? • Mouse Techniques

The Mouse • What is a Mouse? • Mouse Techniques

The Mouse - What is a Mouse? • The mouse is a pointing device.

The Mouse - What is a Mouse? • The mouse is a pointing device. You use it to move a graphical pointer on the screen. • The mouse can be used to issue commands, draw, and perform other types of input tasks.

The Mouse - Mouse Techniques Using the mouse involves five techniques: 1. Pointing; Move

The Mouse - Mouse Techniques Using the mouse involves five techniques: 1. Pointing; Move the mouse to move the on-screen pointer. 2. Clicking; Press and release the left mouse button 3. once. 3. Double-clicking; Press and release the left mouse 4. button twice. 4. Dragging; Hold down the left mouse button as you move the pointer. 5. Right-clicking; Press and release the right mouse button.

Variants of the Mouse • Trackballs • Trackpads • Integrated Pointed Devices

Variants of the Mouse • Trackballs • Trackpads • Integrated Pointed Devices

Variants of the Mouse Trackballs • A trackball is like a mouse turned upside-down.

Variants of the Mouse Trackballs • A trackball is like a mouse turned upside-down. • Use your thumb to move the exposed ball and your fingers to press the buttons. Many styles of trackball are available.

Variants of the Mouse - Trackpads • A trackpad is a touch-sensitive pad that

Variants of the Mouse - Trackpads • A trackpad is a touch-sensitive pad that provides the same functionality as a mouse. • To use a trackpad, you glide your finger across its surface. • Trackpads provide a set of buttons that function like mouse buttons.

Variants of the Mouse. Integrated Pointing Devices • An integrated pointing device is a

Variants of the Mouse. Integrated Pointing Devices • An integrated pointing device is a small joystick built into the keyboard. • To use an integrated pointing device, you move the joystick. • These devices provide a set of buttons that function like mouse buttons

Section 2 a Review • Identify the five key groups on a standard computer

Section 2 a Review • Identify the five key groups on a standard computer keyboard. • Describe the purpose of a mouse and the role it plays in computing. • Identify the five essential techniques for using a mouse. • Identify three common variants of the mouse.

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