computer science

Peter Junger

Peter Junger 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 Peter Junger rather than just read about it. In short: Peter D. Junger (1933 – November 2006) was a cyberlaw professor and internet activist, most famous for having fought against the U.S. government's regulations of and export controls on encryption software.

Key takeaways

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

Reference excerpt

Peter D. Junger (1933 – November 2006) was a cyberlaw professor and internet activist, most famous for having fought against the U.S. government's regulations of and export controls on encryption software. The case Junger v. Daley (6th Cir. 2000), held that computer source code is protected by the First Amendment. The US government prohibited publication of encryption software on the internet, arguing that encryption software was a "munition" subject to export controls. Junger filed suit in 1996, challenging the regulations. Junger also did significant legal theoretical work on the interplay between intellectual property, computer law, and the First Amendment, defining himself as a "First Amendment absolutist".

Biography

Junger grew up in Wyoming, graduating from Harvard University in 1955 and Harvard Law School in 1958. From January 1959 to December 1960, he was an enlisted man in the U.S. Army, serving in West Germany. After practicing law from 1961 to 1970, he accepted a faculty position at Case Western Reserve University's School of Law. He retired and became Professor of Law Emeritus in 2001. Junger died in November 2006, aged 73, at his home in Cleveland.

References

External links Peter D. Junger's website (archived)

Worked examples

Example 1 — a first encounter with Peter Junger

Start with the simplest possible case. Write down what Peter Junger 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 Peter Junger 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 Peter Junger 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 Peter Junger

In research: Peter Junger 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 Peter Junger 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: Peter Junger is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1933 births, 2006 deaths, 20th-century American legal scholars, so understanding it makes those chapters shorter.
In everyday life: Look for Peter Junger 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 Peter Junger in 20 minutes

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

Frequently asked questions

What is Peter Junger in simple terms?

Why does Peter Junger 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 Peter Junger?

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 Peter Junger.