What is a disadvantage of a 2D scanner compared to a 1D scanner?

The correct answer addresses a common limitation of 2D scanners compared to 1D scanners in specific scenarios. A 2D scanner, which is designed to capture images and documents in two dimensions, may have slower processing speeds when handling high-resolution images or detailed documents because it processes more data than a 1D scanner, which only captures data in one dimension (like barcodes). This can be particularly evident when scanning large documents or complex images, leading to longer wait times for the final scanned output to be ready for use.

In contrast, a 1D scanner focuses on reading one-dimensional barcodes, which typically involves simplified data processing and thus can complete scans more quickly. This highlights a key operational difference where 1D scanning generally emphasizes speed due to less complexity.

While the other options suggest attributes related to functionalities or capabilities, they do not directly relate to processing speed as the disadvantage of a 2D scanner in this context. A 2D scanner can indeed scan QR codes, and its performance in this regard is not typically slower than a 1D scanner. Additionally, while 2D scanners certainly have difficulty scanning 3D objects, the nature of speed, particularly in the context of scanning and processing, stands out as a