computer science

ITNOW

ITNOW 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 ITNOW rather than just read about it. In short: ITNOW (formerly The Computer Bulletin) is a bimonthly magazine aimed at IT professionals that is published on behalf of the British Computer Society (BCS) and sent to all its members. The magazine was started with the title The Computer Bulletin in London in 1957.

Key takeaways

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

Reference excerpt

ITNOW (formerly The Computer Bulletin) is a bimonthly magazine aimed at IT professionals that is published on behalf of the British Computer Society (BCS) and sent to all its members. The magazine was started with the title The Computer Bulletin in London in 1957. It is published by Oxford University Press for the BCS.

References

External links ITNOW website ITNOW information from the BCS ISSN 1746-5702

Worked examples

Example 1 — a first encounter with ITNOW

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

In research: ITNOW 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 ITNOW 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: ITNOW is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1957 establishments in the United Kingdom, Bi-monthly magazines published in the United Kingdom, British Computer Society, so understanding it makes those chapters shorter.
In everyday life: Look for ITNOW 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 ITNOW in 20 minutes

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

Frequently asked questions

What is ITNOW in simple terms?

Why does ITNOW 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 ITNOW?

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 ITNOW.