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Digital twin
A digital twin is a live virtual copy of a physical asset or process. Teams test changes on the copy first, so mistakes cost nothing.
Edge vs cloud
Edge computing processes data on or near the device that creates it. It cuts delay and keeps working when the connection drops. The cloud suits heavy, shared workloads.
RPO and RTO
RPO is how much data you can afford to lose. RTO is how long you can afford to be down. Every disaster recovery plan starts by setting both.
Zero trust
Zero trust means no user or device is trusted by default, even inside your network. Every request is verified.
SaaS, PaaS, IaaS
SaaS is software you use. PaaS is a platform you build on. IaaS is raw computing you rent. Pick by how much you want to manage yourself.
RAG
Retrieval-augmented generation lets an AI model look up your own documents before it answers, so replies are grounded in your data.
MFA
Multi-factor authentication asks for two or more proofs of identity. It blocks many account takeovers that depend on a stolen password alone.
What is an API?
An API is a defined way for one piece of software to ask another for data or actions. It is how apps plug into each other.
IoT
An IoT device is a sensor or machine connected to a network. The value is in the data it sends, not the device alone.
3-2-1 backup
Keep 3 copies of your data, on 2 different kinds of storage, with 1 copy off-site.
Technical debt
Shortcuts in code speed delivery now and slow every change later. Paying it down is part of keeping software healthy.
Spatial computing
Spatial computing blends digital content with the physical space around you, using AR, VR or mixed reality devices.
Distributed ledger
A distributed ledger is a database shared across many computers, where records are very hard to change after the fact.
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