computer science

Logicraft

Logicraft 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 Logicraft rather than just read about it. In short: Logicraft was an American software company. The company's products enabled Digital Equipment Corporation (DEC) minicomputers to run PC software (such as Lotus-123).

Key takeaways

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

Reference excerpt

Logicraft was an American software company. The company's products enabled Digital Equipment Corporation (DEC) minicomputers to run PC software (such as Lotus-123).

Overview Augmenting a DEC VAX or PDP-11 multi-user minicomputer with a Logicraft MS-DOS "card" that itself is multi-user allowed a person sitting at a simple terminal to run PC applications. This provided "controlled access to PC resources without putting both a PC and a VT terminal on every desk top." As of mid-1988, Logicraft and another firm, Virtual Microsystems Inc (VMI) were "the only commercially available products that let VAX/VMS systems run standard off-the-shelf PC applications from terminals and VAXstations." Logicraft's Omniware was a combined hardware/software offering. Some users went beyond running PC applications and used serially shared CD-ROM access.

References

Worked examples

Example 1 — a first encounter with Logicraft

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

In research: Logicraft 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 Logicraft 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: Logicraft is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computing stubs, Defunct software companies of the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Logicraft 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 Logicraft in 20 minutes

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

Frequently asked questions

What is Logicraft in simple terms?

Logicraft was an American software company. The company's products enabled Digital Equipment Corporation (DEC) minicomputers to run PC software (such as Lotus-123).

Why does Logicraft 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 Logicraft?

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 Logicraft.