Technology Fundamentals

Technology fundamentals are the core concepts behind every IT system: how computers process data, what hardware and software do, how operating systems, networks, servers and the internet work, and how data is measured and stored. Understanding them lets managers evaluate vendors, budgets and risks without relying entirely on specialists.

Start with What Is Information Technology and Hardware vs Software, then How Computers Work, Bits and Bytes, CPU vs GPU vs NPU and RAM vs Storage. Continue with operating systems and open source, then networks, the internet, connectivity and servers. The reading order at the top of this page follows that path.

No. Every guide is written for business readers and explains terms the first time they appear. Each one ends with a section on what the topic means for your business, including cost drivers and questions to ask your IT team or vendors, so you can apply it directly.

The concepts that most often affect cost and risk are storage and data units (cloud bills are priced per GB), servers and uptime commitments, internet connectivity and backup lines, processor choices for AI workloads, and software licensing. Getting these right prevents over-buying hardware and signing weak service contracts.

Move on to the Technology learning path modules on this page: software and development, data and AI, cloud and infrastructure, and cybersecurity. When you are ready to buy, the Technology Tools and Comparisons section compares business software with published pricing.