Guides
Frequently asked questions in Guides: articles, explanations and technology developments with context and verified sources.
Choosing an external drive depends less on a headline speed or MTBF figure than on how you will use it and whether you have another independent copy. This guide compares HDDs and SSDs, explains USB and Thunderbolt, and offers practical criteria for building a more resilient backup strategy.
Since 1 January 2026, the connected V16 has been the regulatory device for signalling a vehicle immobilised on the road in Spain. Before buying, check the exact model in the DGT list, review its certification and confirm what its connectivity includes.
Before buying a UPS, identify which equipment you want to keep running, calculate its power consumption and compare the runtime with the expected load. It is also worth checking which outlets have battery backup, whether the battery can be replaced and what safe-shutdown options are available.
A guide for freelancers and small businesses: what to ask software providers to confirm in writing, how to consult official tax-agency information, and what to compare before paying or migrating.
Compare password managers using what you can verify before choosing: how they protect data, what options they offer if you lose access, which devices they support, and how they let you switch services.
Before buying a UPS, calculate the load in watts, check the outlets and consult the manufacturer’s runtime for that specific load. VA alone is not enough.
A practical guide to checking suppliers’ claims against the rules, compliance documentation and the real needs of your business.
