computer science

P (programming language)

P (programming language) 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 P (programming language) rather than just read about it. In short: P is a programming language for asynchronous event-driven programming and Internet of things developed by Microsoft and University of California, Berkeley. P enables programmers to specify systems consisting of a collection of state machines that communicate asynchronously in terms of events.

Key takeaways

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

Reference excerpt

P is a programming language for asynchronous event-driven programming and Internet of things developed by Microsoft and University of California, Berkeley. P enables programmers to specify systems consisting of a collection of state machines that communicate asynchronously in terms of events. P programs can run and be analyzed on any platform supported by .NET. Additionally, P programs can generate C# and C code. P is open source, licensed under MIT License, and available on GitHub.

Example machine BankServer { var database: Database;

start state Init { entry (initialBalance: map[int, int]){ database = new Database((server = this, initialBalance = initialBalance)); goto WaitForWithdrawRequests; } }

state WaitForWithdrawRequests { on eWithDrawReq do (wReq: tWithDrawReq) { var currentBalance: int; var response: tWithDrawResp;

// read the current account balance from the database currentBalance = ReadBankBalance(database, wReq.accountId); // if there is enough money in account after withdrawal if(currentBalance - wReq.amount >= 10) { UpdateBankBalance(database, wReq.accountId, currentBalance - wReq.amount); response = (status = WITHDRAW_SUCCESS, accountId = wReq.accountId, balance = currentBalance - wReq.amount, rId = wReq.rId); } else // not enough money after withdraw { response = (status = WITHDRAW_ERROR, accountId = wReq.accountId, balance = currentBalance, rId = wReq.rId); }

// send response to the client send wReq.source, eWithDrawResp, response; } } }

Illustrations

Worked examples

Example 1 — a first encounter with P (programming language)

Start with the simplest possible case. Write down what P (programming language) 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 P (programming language) 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 P (programming language) 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 P (programming language)

In research: P (programming language) 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 P (programming language) 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: P (programming language) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2012 software, Microsoft free software, Microsoft programming languages, so understanding it makes those chapters shorter.
In everyday life: Look for P (programming language) 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 P (programming language) in 20 minutes

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

Frequently asked questions

What is P (programming language) in simple terms?

Why does P (programming language) 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 P (programming language)?

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 P (programming language).