computer science

List of defunct hard disk manufacturers

List of defunct hard disk manufacturers is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of defunct hard disk manufacturers rather than just read about it. In short: At least 218 companies have manufactured hard disk drives (HDDs) since 1956. Most of that industry has vanished through bankruptcy or mergers and acquisitions.

Key takeaways

List of defunct hard disk manufacturers belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of defunct hard disk manufacturers to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of defunct hard disk manufacturers from memory before moving on to harder problems.

Reference excerpt

At least 218 companies have manufactured hard disk drives (HDDs) since 1956. Most of that industry has vanished through bankruptcy or mergers and acquisitions. None of the first several entrants (including IBM, who invented the HDD) continue in the industry today. Only three manufacturers have survived—Seagate, Toshiba and Western Digital (WD)—all of which grew at least in part through mergers and acquisitions.

Manufacturers

The following is a partial list of defunct hard disk manufacturers. There are currently 120 manufacturers in this incomplete list.

See also History of hard disk drives List of computer hardware manufacturers List of hard disk manufacturers List of solid-state drive manufacturers

References General references McKendrick, David (November 1997). "Sustaining Competitive Advantage in Global Industries: Technological Change and Foreign Assembly in the Hard Disk Drive Industry". Archived from the original on February 9, 2014. Retrieved August 3, 2011. Specific references

Further reading Wong, Poh-Kam (July 1999). "The Dynamics of the HDD Industry Development in Singapore" (PDF). Centre for Management of Innovation and Technopreneurship, National University of Singapore: The Information Storage Industry Center, Graduate School of International Relations and Pacific Studies, University of California. Report 99–03. Archived from the original (PDF) on July 17, 2012. Retrieved March 27, 2017.

Illustrations

Worked examples

Example 1 — a first encounter with List of defunct hard disk manufacturers

Start with the simplest possible case. Write down what List of defunct hard disk manufacturers claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of defunct hard disk manufacturers before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of defunct hard disk manufacturers ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of defunct hard disk manufacturers

In research: List of defunct hard disk manufacturers appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of defunct hard disk manufacturers in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of defunct hard disk manufacturers is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer storage companies, Computing-related lists, Defunct computer hardware companies, so understanding it makes those chapters shorter.
In everyday life: Look for List of defunct hard disk manufacturers outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of defunct hard disk manufacturers in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of defunct hard disk manufacturers means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of defunct hard disk manufacturers out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of defunct hard disk manufacturers in simple terms?

At least 218 companies have manufactured hard disk drives (HDDs) since 1956. Most of that industry has vanished through bankruptcy or mergers and acquisitions.

Why does List of defunct hard disk manufacturers matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of defunct hard disk manufacturers?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of defunct hard disk manufacturers.