Apple MacBook Air - 13 inch - 256 GB - Gold - MacOS - Intel Core i5 - Wi-Fi 5

The 4 GB of internal memory (RAM) and the 256 GB Solid State Drive (SSD) are integrated components and are not user-upgradable after purchase on this model.

While actual battery life varies based on usage patterns, display brightness, and applications running, MacBook Air models are generally known for providing excellent all-day battery performance under typical productivity and web browsing conditions.

Due to its 4 GB RAM and Intel Core i5 processor, this model is better suited for everyday tasks. For professional video editing, demanding graphic design, or intensive 3D rendering, a MacBook Pro with more RAM and a more powerful processor would be recommended.

To clean the screen and casing, use a soft, lint-free cloth. For smudges, you can slightly dampen the cloth with water. Avoid using harsh cleaning agents, aerosol sprays, or solvents directly on the device.

Wi-Fi 5 (also known as 802.11ac) refers to a wireless networking standard that provides faster data transfer speeds and improved performance compared to previous Wi-Fi standards, offering a robust connection for streaming and internet use.

Yes, it comes with the MacOS operating system pre-installed, along with a suite of Apple applications such as Safari, Mail, Messages, Photos, Music, Pages, Numbers, and Keynote, ready for immediate use.

You can back up your data using Apple's built-in Time Machine feature, which requires an external hard drive. Alternatively, you can use cloud storage services like iCloud, Google Drive, or Dropbox to store important files.

Ensure the power adapter is securely connected to both the MacBook Air and a working wall outlet. Try a different outlet. If the battery is completely drained, it might take a few minutes for it to respond after plugging in.

Close unnecessary applications, especially those shown as 'Not Responding' in Activity Monitor (found in `Applications` > `Utilities`). Restart your MacBook Air. Ensure you have adequate free space on your 256 GB SSD (at least 15-20% free is recommended).

Check if Wi-Fi is enabled in the menu bar. Restart your Wi-Fi router and then restart your MacBook Air. Forget the network and rejoin it in `System Settings` > `Wi-Fi`.

Check `Activity Monitor` > `Energy` tab to identify power-hungry applications and close them if not needed. Reduce screen brightness. Disable Bluetooth or Wi-Fi if not in use. Ensure MacOS and applications are up to date.

Restart your MacBook Air. If issues persist, check for any physical obstructions or debris under the keys or around the trackpad. Ensure no external devices are interfering.