mouse

Mouse

A computer mouse is an input device used to control the pointer (cursor) on a computer screen. It allows users to interact with programs, files, and menus by moving, clicking, dragging, and scrolling.

How a Mouse Works
You move the mouse across a surface.
Sensors inside the mouse detect the movement.
The mouse sends signals to the computer.
The cursor moves on the monitor.
You can click or select items on the screen.
Main Parts of a Mouse
Left Button
Used to select items.
Opens files and programs with a double-click.
Right Button
Opens shortcut or context menus.
Provides additional options.
Scroll Wheel
Scrolls up and down webpages and documents.
Can also act as a button when pressed.
Optical Sensor
Detects movement using light.
Located underneath the mouse.
Common Mouse Actions
Action	DescriptionClick	Press and release a button
Double-click	Quickly press the left button twice
Right-click	Press the right button for a menu
Drag and Drop	Move an item from one location to another
Scroll	Move through pages and documents
Types of Computer Mice
1. Mechanical Mouse

Uses a rubber ball underneath the mouse.

Advantages
Simple design
Disadvantages
Requires frequent cleaning
Less accurate

Mostly obsolete today.

2. Optical Mouse

Uses LED light and sensors to detect movement.

Advantages
Accurate
Affordable
Reliable
Best For
Home and office use
3. Laser Mouse

Uses a laser instead of LED light.

Advantages
Very precise
Works on more surfaces
Best For
Designers
Gamers
Professional users
4. Wired Mouse

Connects through a USB cable.

Advantages
No batteries required
Reliable connection
Low latency
Best For
Office work
Gaming
5. Wireless Mouse

Connects using:

Bluetooth
USB wireless receiver
Advantages
Portable
No cable clutter
Disadvantages
Requires batteries or charging
Best For
Laptops
Mobile users
6. Gaming Mouse

Designed specifically for gaming.

Features
High DPI settings
Programmable buttons
RGB lighting
Fast response times
Best For
Competitive gaming
Mouse Specifications
DPI (Dots Per Inch)

Measures mouse sensitivity.

Low DPI = Slower cursor movement
High DPI = Faster cursor movement

Typical ranges:

Office mouse: 800-1600 DPI
Gaming mouse: 2,000-20,000+ DPI
Mouse Connections
Connection Type	DescriptionUSB	Wired connection
Bluetooth	Wireless connection
Wireless Receiver	Uses a USB dongle
Advantages of a Mouse
Easy navigation
Precise pointing and selection
Faster interaction with graphical interfaces
Improves productivity
Mouse vs Keyboard
Device	TypeMouse	Input Device
Keyboard	Input Device
Monitor	Output Device
Speaker	Output Device
Example

When you open a folder:

Move the mouse pointer over the folder icon.
Double-click the left mouse button.
The computer receives the command.
The folder opens on the screen.
Simple Definition

A computer mouse is an input device used to control the cursor on a computer screen and perform actions such as clicking, selecting, dragging, and scrolling. It is one of the primary tools used to interact with a computer.

Compare wired and wireless miceExplain DPI and mouse sensitivityHow do I choose a computer mouse?
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