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Moving to and running on the cloud: platform choices, migrations, containers, cost and reliability.

The service behind this topic: Cloud transformation

Fig. 1 Ten topics, one per service line. Bars show how many articles each holds; an article can sit in two.

Cloud15 min read

RTO vs RPO: set recovery targets and build a disaster recovery plan

RPO is how much data you can lose; RTO is how long recovery takes. How to set both per system, design for them, test them and write the disaster recovery plan.

Updated

Cloud27 min read

Infrastructure as code: Terraform, OpenTofu, state and the team workflow

What infrastructure as code is, how Terraform and OpenTofu differ, what the state file holds, and how to run plan and apply safely from a pull request pipeline.

Updated

Cloud19 min read

OpenShift vs Kubernetes: what OpenShift adds, what it costs and how to choose

Kubernetes is the open-source orchestrator; OpenShift is Red Hat's supported distribution of it. What OpenShift adds, what it costs and how to choose.

Updated

Integrations22 min read

Dead letter queue: how DLQs work, with retries, backoff and idempotency

A dead letter queue holds messages that failed after set attempts so you can inspect and replay them. How SQS, Service Bus, RabbitMQ, Kafka and Pub/Sub differ.

Updated

Cloud15 min read

Cloud migration strategy: choose a path per application, then plan the waves

A cloud migration strategy gives each application one of seven treatments (the 7 Rs), then orders them into waves. How to choose, plan and avoid stalls.

Updated

Cloud19 min read

Serverless computing: how it works, what it costs and where it is heading

Serverless computing runs your code only when events arrive, scales it to zero and bills per use. How it works, the platforms, limits, costs and 2026 trends.

Updated

Cloud17 min read

5G and 6G explained: how they differ and when 6G will arrive

What 5G and 5G-Advanced are, how 6G differs, and the 6G timeline as of 2026: first specifications in 3GPP Release 21, launches expected around 2030.

Updated

Cloud17 min read

Quantum circuit design explained: gates, compilation and error correction

A quantum circuit is qubits, gates and measurements. How circuits are designed and compiled for real chips, and why error correction decides what they can run.

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IT support18 min read

How to set up a virtual machine on your PC: Windows, Mac and Linux

Set up a virtual machine on Windows 11, a Mac or Linux: turn on VT-x or AMD-V, pick a hypervisor, size CPU, RAM and disk, then install from an ISO.

Updated

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