computer science

PTS-DOS

PTS-DOS 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 PTS-DOS rather than just read about it. In short: PTS-DOS (also punctuated as PTS/DOS) is clone of Microsoft's disk operating system, MS-DOS, developed in Russia by PhysTechSoft and Paragon Technology Systems. It was initially released in 1993.

Key takeaways

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

Reference excerpt

PTS-DOS (also punctuated as PTS/DOS) is clone of Microsoft's disk operating system, MS-DOS, developed in Russia by PhysTechSoft and Paragon Technology Systems. It was initially released in 1993.

History and versions PhysTechSoft was formed in 1991 in Moscow, Russia by graduates and members of MIPT, informally known as PhysTech. At the end of 1993, PhysTechSoft released the first commercially available PTS-DOS as PTS-DOS v6.4. The version numbering followed MS-DOS version numbers, as Microsoft released MS-DOS 6.2 in November 1993. In 1995, some programmers left PhysTechSoft and founded Paragon Technology Systems. They took source code with them and released their own version named PTS/DOS 6.51CD as well as S/DOS 1.0 ("Source DOS"), a stripped down open-source version. According to official PhysTechSoft announcements, these programmers violated both copyright laws and Russian military laws, as PTS-DOS was developed in close relationship with Russia's military and thus may be subject to military secrets law. PhysTechSoft continued development on their own and released PTS-DOS v6.6 somewhere between and presented PTS-DOS v6.65 at the CeBIT exhibition in 1997. The next version from PhysTechSoft, formally PTS/DOS Extended Version 6.70 was labeled PTS-DOS 2000 and is still being distributed as a last 16-bit PTS-DOS system, as of 2007. Paragon continued their PTS-DOS line and released Paragon DOS Pro 2000 (also known and labeled in some places as PTS/DOS Pro 2000). According to Paragon, this was the last version and all development since then ceased. Moreover, this release contained bundled source code of older PTS-DOS v6.51. Later, PhysTechSoft continued developing PTS-DOS and finally released PTS-DOS 32, formally known as PTS-DOS v7.0, which added support for the FAT32 file system. PTS-DOS is certified by the Russian Ministry of Defense.

Commands The following list of commands are supported by PTS-DOS 2000 Pro.

Exclusive commands

UNINSTALL This command is specific to PTS/DOS 2000. Paragon's description is (quote)

Purpose: Restores the booting of a system installed before PTS-DOS on the disk and restores its the boot sector. Syntax: UNINSTALL filename [drive:]

Hardware requirements Intel 80286 CPU or better 512 KB RAM or more

See also Comparison of DOS operating systems АДОС, unrelated to Russian MS-DOS Russian MS-DOS

References

External links Official website Unofficial PTS-DOS FAQ Paragon GmbH homepage

Illustrations

Worked examples

Example 1 — a first encounter with PTS-DOS

Start with the simplest possible case. Write down what PTS-DOS 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 PTS-DOS 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 PTS-DOS 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 PTS-DOS

In research: PTS-DOS 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 PTS-DOS 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: PTS-DOS is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1993 software, DOS variants, Disk operating systems, so understanding it makes those chapters shorter.
In everyday life: Look for PTS-DOS 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 PTS-DOS in 20 minutes

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

Frequently asked questions

What is PTS-DOS in simple terms?

PTS-DOS (also punctuated as PTS/DOS) is clone of Microsoft's disk operating system, MS-DOS, developed in Russia by PhysTechSoft and Paragon Technology Systems. It was initially released in 1993.

Why does PTS-DOS 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 PTS-DOS?

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 PTS-DOS.