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NCSim

NCSim 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 NCSim rather than just read about it. In short: Incisive is a suite of tools from Cadence Design Systems related to the design and verification of ASICs, SoCs, and FPGAs. Incisive is commonly referred to by the name NCSim in reference to the core simulation engine.

Key takeaways

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

Reference excerpt

Incisive is a suite of tools from Cadence Design Systems related to the design and verification of ASICs, SoCs, and FPGAs. Incisive is commonly referred to by the name NCSim in reference to the core simulation engine. In the late 1990s, the tool suite was known as ldv (logic design and verification). Depending on the design requirements, Incisive has many different bundling options of the following tools:

See also List of HDL simulators

Worked examples

Example 1 — a first encounter with NCSim

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

In research
NCSim 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 NCSim 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
NCSim is common in secondary-school and first-year university syllabi. It links to neighbouring topics Electronic design automation software, Logic design, so understanding it makes those chapters shorter.
In everyday life
Look for NCSim 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 NCSim in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what NCSim means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain NCSim out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NCSim in simple terms?

Incisive is a suite of tools from Cadence Design Systems related to the design and verification of ASICs, SoCs, and FPGAs. Incisive is commonly referred to by the name NCSim in reference to the core simulation engine.

Why does NCSim 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 NCSim?

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 NCSim.

Tags

  • Electronic design automation software
  • Logic design

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