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1. Battery Life: A key feature of laptops is portability. Battery life can range from 4 to 15 hours, depending on the size of the battery and how power-hungry the device is (e.g., gaming laptops typically have shorter battery life compared to ultrabooks).

2. Ports & Connectivity: Laptops are equipped with multiple ports for USB, HDMI, and audio jacks. Modern laptops also include Wi-Fi (Wi-Fi 5 or Wi-Fi 6) and Bluetooth connectivity.

3. Graphics: Integrated graphics are standard in most laptops, but for gaming or heavy graphical work, laptops can have discrete graphics cards from brands like NVIDIA or AMD.

4. Operating System: The operating system (OS) determines how you interact with the laptop. Common OS options include:

   • Windows (most common, used by many laptop brands)
   • macOS (used on Apple laptops)
   • ChromeOS (used on Chromebooks)
   • Linux (used in specific scenarios)

5. Weight and Portability: Laptops are designed for mobility, and their weight typically ranges from around 1 to 2.5 kg. Thin and light laptops are popular for users who need maximum portability, while gaming or high-performance models tend to be bulkier.

6. Keyboard and Touchpad: The keyboard on most laptops is built-in, and the touchpad beneath the keyboard allows for mouse functionality. Some models may have backlit keyboards for use in low-light environments.

Types of Laptops:

• Ultrabooks: Thin, lightweight laptops focused on portability and battery life.
• Gaming Laptops: Powerful devices with high-end graphics and processors for gaming and intensive tasks.
• 2-in-1 Laptops: Hybrid laptops that can function as both a laptop and a tablet, with a detachable or foldable touchscreen.
• Business Laptops: Laptops designed with enterprise use in mind, offering durability, security features, and long battery life.
• Chromebooks: Laptops that run ChromeOS, typically focused on web-based tasks with low storage needs.

Laptops are essential devices for both personal and professional use, offering flexibility, performance, and portability in one compact form.