computer science

SGI Prism

SGI Prism 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 SGI Prism rather than just read about it. In short: The Silicon Graphics Prism is a series of visualization computer systems developed and manufactured by Silicon Graphics (SGI). Released in April 2005, the Prism's basic system architecture is based on the Altix 3000 servers, but with graphics hardware.

Key takeaways

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

Reference excerpt

The Silicon Graphics Prism is a series of visualization computer systems developed and manufactured by Silicon Graphics (SGI). Released in April 2005, the Prism's basic system architecture is based on the Altix 3000 servers, but with graphics hardware. The Prism uses the Linux operating system and the OpenGL software library. Three models of the SGI Prism are Power, Team and Extreme levels.

The Power level supports two to eight Itanium 2 processors, up to 96 GB of memory and two to four graphics pipelines. The Team level supports 8 to 16 Itanium 2 processors, up to 192 GB of memory and four to eight graphics pipelines. The Extreme level supports 16 to 256 Itanium 2 processors, up to 3 TB of memory and 4 to 16 graphics pipelines. The graphics pipelines for the Prism are ATI FireGL cards based on either the R350 or R420 GPUs.

References

Illustrations

Worked examples

Example 1 — a first encounter with SGI Prism

Start with the simplest possible case. Write down what SGI Prism 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 SGI Prism 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 SGI Prism 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 SGI Prism

In research: SGI Prism 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 SGI Prism 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: SGI Prism is common in secondary-school and first-year university syllabi. It links to neighbouring topics 64-bit computers, Computer-related introductions in 2005, Computer hardware stubs, so understanding it makes those chapters shorter.
In everyday life: Look for SGI Prism 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 SGI Prism in 20 minutes

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

Frequently asked questions

What is SGI Prism in simple terms?

Why does SGI Prism 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 SGI Prism?

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 SGI Prism.