Technology Fundamentals and Terminology
Why terminology matters
A support technician's credibility rests on precise vocabulary. Questions in this domain test whether you can map a plain-language complaint to the correct technical term, and whether you can explain that term back to a non-technical user without jargon.
Concepts to master
Know the difference between hardware (physical components) and software (instructions and data). Be fluent in the layered model: input, processing, storage, and output. Understand firmware as software embedded in hardware, drivers as the translation layer between OS and device, and virtualization as running multiple logical systems on one physical host. Distinguish bits, bytes, and prefixes (decimal vs binary: 1 GB ≈ 1 billion bytes vs 1 GiB = 1,073,741,824 bytes). Understand client-server vs peer-to-peer, cloud service models (IaaS, PaaS, SaaS), and file formats and their purpose (e.g., .docx, .pdf, .csv, .log).
Common traps
- Confusing storage (persistent) with memory (volatile RAM).
- Treating firmware and driver as synonyms.
- Mixing decimal and binary capacity units, causing "missing space" questions.
- Assuming a cloud service is always SaaS when the customer actually manages the OS (that's IaaS).
Rule of thumb
When a user describes a symptom, restate it in technical terms and confirm: "So the laptop powers on but the display stays black - that's a POST or display-output issue, correct?" Confirmation prevents solving the wrong problem.
Worked example
A user says their 500 GB drive "only has 465 GB." Explain that manufacturers use decimal (1 GB = 1,000,000,000 bytes) while the OS reports binary (1 GiB = 1,073,741,824 bytes); 500 × 10⁹ ÷ 2³⁰ ≈ 465.7 GiB. Nothing is missing.