science

Prevas

Prevas is a 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 Prevas rather than just read about it. In short: Prevas is a Swedish IT company that provides services to streamline or automate software and hardware. Prevas was founded in 1985 and specialises in product development, embedded systems, industrial IT, and automation.

Key takeaways

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

Reference excerpt

Prevas is a Swedish IT company that provides services to streamline or automate software and hardware. Prevas was founded in 1985 and specialises in product development, embedded systems, industrial IT, and automation. Prevas is certified to be standard with ISO 9001. Prevas is a supplier and development partner for companies in industries such as life science, telecom, automotive, defense, energy and engineering. Prevas has offices in Sweden, Denmark, Norway, India, and Finland. The company has around 1,100 employees. Prevas has been listed on the NASDAQ exchange in Stockholm since 1998. Prevas has won first prize in the sv:Swedish Embedded Award in the Enterprise category four times:

A communications system, built with Interspiro in 2009, that is used in rescue operations. A liquid analyser for liquids such as cow or breast milk, built with Miris Holdings in 2012. A wireless breathalyzer which provides capabilities for helping alcoholics during the period after leaving rehab centres, built with Kontigo Care in 2014. Wireless technology-enabled manikins to aid with CPR training, built with Ambu.

Selected Products

Prevas Industrial Linux An off-the-shelf embedded Linux platform for industrial use on custom hardware boards, with support for full customization and long-term maintenance. Prevas Industrial Linux is provided with the OE-lite Linux or Yocto Project integration tools. Prevas has been involved in the development of many OE-lite Linux integration tools.

References

Illustrations

Worked examples

Example 1 — a first encounter with Prevas

Start with the simplest possible case. Write down what Prevas claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In 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 Prevas 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 Prevas 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 Prevas

In research: Prevas appears in 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 Prevas 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: Prevas is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1985 establishments in Sweden, Companies based in Västmanland County, Companies listed on Nasdaq Stockholm, so understanding it makes those chapters shorter.
In everyday life: Look for Prevas 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 Prevas in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Prevas 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 Prevas out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Prevas in simple terms?

Why does Prevas matter?

Because it connects several 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 Prevas?

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 Prevas.