Modern technology is a connected system of ideas: mechanical calculation led to programmable electronic machines; semiconductor materials made compact switching and integrated circuits possible; binary representation and standard units describe digital data; and responsible repair, reuse and recycling manage what happens when equipment reaches the end of useful life.
Choose a foundation
Computing timeline
See how mechanical calculation, electronic computers, transistors, microprocessors and the Web connect without compressing history into one inventor.
ExploreSemiconductor basics
Connect material, transistor, integrated circuit, wafer and chip packaging in plain language.
ExploreBinary and data units
Separate bits from bytes and decimal GB from binary GiB using standard notation.
ExploreResponsible e-waste in India
Protect data, distinguish reuse from waste and use the current Indian regulatory framework as the source of truth.
ExploreOne product, several disciplines
| Question | Discipline | Practical value |
|---|---|---|
| Why did computers become smaller? | History and semiconductor science | Understand the transition from mechanical parts and valves to integrated circuits |
| Why can 1 TB appear smaller in an operating system? | Mathematics and measurement | Separate decimal capacity labels from binary display units and other reserved space |
| What happens after a device is no longer useful? | Environment and regulation | Plan data removal, repair/reuse assessment and an appropriate collection route |
| How does a specification become a purchase decision? | Human factors and engineering | Translate a number into workload, compatibility, reliability and lifecycle evidence |
How to use foundation articles
- Start with the quick answer and identify the term or decision you need.
- Follow the cited institution for the historical, scientific or regulatory claim.
- Use related product guides to translate the concept into a practical choice.
- Recheck standards, regulations and product-specific documentation when acting on time-sensitive information.
Sources and further reading
Technical statements were reviewed against these references. External pages may change after our review date.
- Difference Engine No. 1 — Science Museum Group
- Semiconductors — National Institute of Standards and Technology
- Definitions of the SI units: The binary prefixes — National Institute of Standards and Technology
- Frequently Asked Questions on E-Waste Management — Central Pollution Control Board, India