Which Computer Should You Buy? Start With the Workload
The right computer is the one that matches the job it has to do — not the one with the biggest number on the box. Before comparing processors or RAM, answer three questions: What software will run on it? Where will it physically sit? How long must it stay in service without being replaced? A cash counter, a factory floor terminal, a design workstation and a classroom thin client all have very different answers, even though they are all "computers".
Buying on specification alone usually leads to over-spending on a machine that is under-used, or under-spending on one that overheats, throttles or fails in a dusty environment. Buying on the three questions above leads to a system that quietly does its job for years.
Key Specifications That Actually Matter
| Component | What it decides | Practical guidance |
|---|---|---|
| Processor | Everyday responsiveness, multitasking, number of screens | Intel® Celeron®/N-series for browsing, billing, kiosks; Core™ i3 for multi-app office and Linux workloads; Core™ i5 and above for CAD, video, virtualisation |
| Cores | How many tasks run at once without slowing down | 4 cores is fine for single-app terminals; 6–12 cores for multi-window, multi-tab and background services |
| RAM | How many applications stay open smoothly | 4–8 GB for basic terminals, 16 GB for office multit |
