computer science

Sharp PC-3000

Sharp PC-3000 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 Sharp PC-3000 rather than just read about it. In short: The Sharp PC-3000 was an MS-DOS-based palmtop computer introduced in late 1991 and shipped in volume in 1992. The "SPC" was designed and developed by DIP Research Ltd.

Key takeaways

Sharp PC-3000 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 Sharp PC-3000 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sharp PC-3000 from memory before moving on to harder problems.

Reference excerpt

The Sharp PC-3000 was an MS-DOS-based palmtop computer introduced in late 1991 and shipped in volume in 1992. The "SPC" was designed and developed by DIP Research Ltd. ("DIP") in the UK. DIP had earlier designed the Atari Portfolio and the two machines shared many design features both in hardware and software.

Features As with desktop IBM PCs, this one-pound device's screen displayed 80-column 25 lines.

Peripherals The machine was one of the first to support the PC card interface, at the time known as PCMCIA. Printers, floppy drives, dial-up modems, Fax modems were among the supported peripheral devices.

System software MS-DOS 3.3 is installed. It is possible to run Microsoft Windows 3.0 (running in real mode with a mouse), albeit quite slowly.

Application software The machine came with a suite of built in applications providing a simple word processor, calculator and 1-2-3 compatible spreadsheet. With some tweaking, it was also possible to run WordPerfect, Microsoft Word and Microsoft Excel.

Sharp PC-3100 A 2 MB model was produced: the 3100.

Notes and references

Worked examples

Example 1 — a first encounter with Sharp PC-3000

Start with the simplest possible case. Write down what Sharp PC-3000 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 Sharp PC-3000 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 Sharp PC-3000 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 Sharp PC-3000

In research: Sharp PC-3000 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 Sharp PC-3000 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: Sharp PC-3000 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer-related introductions in 1991, Computer hardware stubs, Sharp pocket computers, so understanding it makes those chapters shorter.
In everyday life: Look for Sharp PC-3000 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 Sharp PC-3000 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sharp PC-3000 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 Sharp PC-3000 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sharp PC-3000 in simple terms?

The Sharp PC-3000 was an MS-DOS-based palmtop computer introduced in late 1991 and shipped in volume in 1992. The "SPC" was designed and developed by DIP Research Ltd.

Why does Sharp PC-3000 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 Sharp PC-3000?

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 Sharp PC-3000.