computer science

NAS200

NAS200 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 NAS200 rather than just read about it. In short: The NAS200 is a network-attached storage appliance intended for the consumer market. It was originally marketed by the Linksys division of Cisco Systems in 2007.

Key takeaways

NAS200 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 NAS200 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NAS200 from memory before moving on to harder problems.

Reference excerpt

The NAS200 is a network-attached storage appliance intended for the consumer market. It was originally marketed by the Linksys division of Cisco Systems in 2007. The NAS200, the successor to the Linux-based NSLU2, has room for two internal SATA drives, a 10/100 Ethernet port, and supports FAT32-formatted external USB 2.0 drives. It comes with UPnP media-sharing software. The NAS200 is built around a RDC semiconductor R3210-G — a RISC-based System-on-a-chip that executes the Intel 80486 instruction set. The NAS200's stock firmware supports only Microsoft Windows networking (SMB). This firmware includes a Linux 2.6.19 kernel and uses an eCos-based boot loader. A PC Pro review said "transfer speeds were unimpressive" and found with average read speeds of 3.7 MB/s and average write speeds of 3.2 MB/s. PC Magazine found it a little faster at 4.7 MB/s with 500Gb Seagate drives, but concluded it was too slow for movies.

References

External links "Linksys NAS200". nslu2-linux.org web site. April 26, 2008. Archived from the original on July 23, 2008. Retrieved June 9, 2011.

Worked examples

Example 1 — a first encounter with NAS200

Start with the simplest possible case. Write down what NAS200 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 NAS200 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 NAS200 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 NAS200

In research: NAS200 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 NAS200 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: NAS200 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer hardware stubs, Linux-based devices, Server appliance, so understanding it makes those chapters shorter.
In everyday life: Look for NAS200 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 NAS200 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NAS200 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 NAS200 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NAS200 in simple terms?

The NAS200 is a network-attached storage appliance intended for the consumer market. It was originally marketed by the Linksys division of Cisco Systems in 2007.

Why does NAS200 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 NAS200?

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 NAS200.