You can quickly and easily scan a document in Windows 10 using the Windows Scan app. Windows Scan allows you to scan both documents and images.

You can scan a barcode with your iPhone by using a third-party app. Currently, there are no built-in apps that can read barcodes.

The simplest way to think about SCAN is that it applies a custom calculation to each element in a range/array and returns every intermediate result it produces along the way. If that sounds abstract, ...