Final answer:
A new computer or mobile device typically comes with an operating system preinstalled, which manages the device's resources and allows users to easily run applications, including built-in memory card readers for file transfers.
Step-by-step explanation:
When you purchase a new computer or mobile device, it typically has an operating system preinstalled. Operating systems are essential for managing the computer's hardware and software resources, providing common services for computer programs. The operating system ensures smooth operation of your device and allows you to run various applications, including those for downloading and organizing images like iPhoto for Mac or Picasa for both Mac and Windows.
In addition to the operating system, many computers now include built-in amenities such as memory card readers to facilitate easy transfer of files from devices such as digital cameras without the need for external card readers.