Deciding what Point of Sales system to use can be difficult. Here are some articles that can help you make that decision.
This article from the Queensland Government notes the benefits of cloud-based computing. Of the points made, the most important to a Point of Sales system are the scalability, business continuity, collaboration efficiency (multiple stations or locations), and access to automatic updates. Depending on the system and your business, you may also see reduced IT costs and more flexibility in work practices.
This article from Touch Dynamic notes 5 benefits of a Cloud POS System – I should note that benefit #2 suggests managers might update software – with YOUR POS, we take care of the updates – scheduled to avoid your peak times.
This brief article from Entrepreneur Asia Pacific makes a few useful points about cloud-based POS systems, although it is a bit outdated when thinking they only apply to Apple solutions.