PTS-DOS (aka PTS/DOS) is a

disk operating system A disk operating system (DOS) is a computer operating system that requires a disk or other direct-access storage device as secondary storage. A DOS provides a file system and a means for loading and running computer program, programs stored on th ...

, a

DOS DOS (, ) is a family of disk-based operating systems for IBM PC compatible computers. The DOS family primarily consists of IBM PC DOS and a rebranded version, Microsoft's MS-DOS, both of which were introduced in 1981. Later compatible syste ...

clone, developed in

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

PhysTechSoft PTS-DOS (aka PTS/DOS) is a disk operating system, a DOS clone, developed in Russia by PhysTechSoft and Paragon Technology Systems. History and versions PhysTechSoft was formed in 1991 in Moscow, Russia by graduates and members of MIPT, in ...

and Paragon Technology Systems.

History and versions

PhysTechSoft was formed in 1991 in

Moscow Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...

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 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

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 secret Secrecy is the practice of hiding information from certain individuals or groups who do not have the "need to know", perhaps while sharing it with other individuals. That which is kept hidden is known as the secret. Secrecy is often controver ...

s law. PhysTechSoft continued development on their own and released PTS-DOS v6.6 somewhere between and presented PTS-DOS v6.65 at the

CeBIT CeBIT was a computer expo which, at its peak, was the largest and most internationally representative. The trade fair was held each year on the Hanover fairground, the world's largest fairground, in Hanover, Germany. In its day, it was c ...

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, . 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 Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. Originally developed in 1977 for use on floppy disks, it was adapted for use on ...

file system. PTS-DOS is certified by the

Russian Ministry of Defense The Ministry of Defence of the Russian Federation (; MOD) is the governing body of the Russian Armed Forces. The President of Russia is the Supreme Commander-in-Chief of the Armed Forces of the Russian Federation, Commander-in-Chief of the forces ...

Commands

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

APPEND In computer programming, append is the operation for concatenating linked lists or arrays in some high-level programming languages. Lisp Append originates in the programming language Lisp. The append procedure takes zero or more (linked) lists a ...

* ASK * ASSIGN *

ATTR In computing, ATTRIB is a command in Intel ISIS-II, DOS, IBM OS/2, Microsoft Windows and ReactOS that allows the user to change various characteristics, or "attributes" of a computer file or directory. The command is also available in the EFI s ...

BEEP The Blocks Extensible Exchange Protocol (BEEP) is a framework for creating network application protocols. BEEP includes building blocks like framing, pipelining, multiplexing, reporting and authentication for connection and message-oriented pee ...

BREAK Break or Breaks or The Break may refer to: Time off from duties * Recess (break), time in which a group of people is temporarily dismissed from its duties * Break (work), time off during a shift/recess ** Coffee break, a short mid-morning rest ...

CALL Call or Calls may refer to: Arts, entertainment, and media Games * Call (poker), a bet matching an opponent's * Call, in the game of contract bridge, a bid, pass, double, or redouble in the bidding stage Music and dance * Call (band), from L ...

* CD *

CHDIR is a shell command that changes the working directory. It is available in many shells and other applications that maintain a working directory. In some contexts, the command can perform actions other than change directory. Some environments prov ...

CHKDSK In computing, CHKDSK (short for "check disk") is a system software, system tool and command (computing), command in DOS and Microsoft Windows (and related operating systems), as well as Digital Research FlexOS, IBM/Toshiba 4690 Operating System, 4 ...

CHOICE A choice is the range of different things from which a being can choose. The arrival at a choice may incorporate Motivation, motivators and Choice modelling, models. Freedom of choice is generally cherished, whereas a severely limited or arti ...

* CLS *

COMMAND Command may refer to: Computing * Command (computing), a statement in a computer language * command (Unix), a Unix command * COMMAND.COM, the default operating system shell and command-line interpreter for DOS * Command key, a modifier key on A ...

COPY Copy may refer to: *Copying or the product of copying (including the plural "copies"); the duplication of information or an artifact **Cut, copy and paste, a method of reproducing text or other data in computing **File copying **Photocopying, a pr ...

CTTY This article lists notable commands provided by the MS-DOS disk operating system (DOS), especially as used on an IBM PC compatible computer. Other DOS variants as well as the legacy Windows shell, Command Prompt (cmd.exe), provide many of these c ...

* DATE *

DEBUG In engineering, debugging is the process of finding the root cause, workarounds, and possible fixes for bugs. For software, debugging tactics can involve interactive debugging, control flow analysis, log file analysis, monitoring at the ap ...

DEL Del, or nabla, is an operator used in mathematics (particularly in vector calculus) as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes ...

* DIR *

DISKCOPY In computing, diskcopy is a command used on a number of operating systems for copying the complete contents of a diskette to another diskette. Implementations The command is available in MS-DOS, IBM PC DOS, DR FlexOS, IBM/Toshiba 4690 OS, Me ...

* DISP *

ECHO In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the lis ...

* ECHONLF *

ERASE Erase may refer to: * ''Erase'' (album), a 1994 death metal album by Gorefest *"Erase/Rewind", a 1998 pop/rock song by The Cardigans *"Erase", a song by All That Remains from the 2002 album ''Behind Silence and Solitude'' *"Erase", a song by Immi ...

* EXE2BIN *

EXIT Exit(s) may refer to: Architecture and engineering * Door * Portal (architecture), an opening in the walls of a structure * Emergency exit * Overwing exit, a type of emergency exit on an airplane * Exit ramp, a feature of a road interchange A ...

FDISK fdisk is a command-line utility for disk partitioning. It has been part of DOS, DR FlexOS, IBM OS/2, and early versions of Microsoft Windows, as well as certain ports of FreeBSD, NetBSD, OpenBSD, DragonFly BSD and macOS for compatibilit ...

* FIND *

FOR For or FOR may refer to: English language *For, a preposition *For, a complementizer *For, a grammatical conjunction Science and technology * Fornax, a constellation * for loop, a programming language statement * Frame of reference, in physics * ...

FORMAT Format may refer to: Printing and visual media * Text formatting, the typesetting of text elements * Paper formats, or paper size standards * Newspaper format, the size of the paper page Computing * File format, particular way that informatio ...

* GOTO *

HISTORY History is the systematic study of the past, focusing primarily on the Human history, human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some t ...

* IF *

JOIN Join may refer to: * Join (law), to include additional counts or additional defendants on an indictment *In mathematics: ** Join (mathematics), a least upper bound of sets orders in lattice theory ** Join (topology), an operation combining two topo ...

KEYB KEYB (107.9 FM, "108 Key FM") is a country music radio station licensed to Altus, Oklahoma Altus () is a city in and the county seat of Jackson County, Oklahoma, United States. The population was 18,729 at the 2020 census. Altus is home ...

LABEL A label (as distinct from signage) is a piece of paper, plastic film, cloth, metal, or other material affixed to a container or product. Labels are most often affixed to packaging and containers using an adhesive, or sewing when affix ...

* LOADFIX * MD *

MEM Mem (also spelled Meem, Meme, or Mim) is the thirteenth letter of the Semitic abjads, including Hebrew ''mēm'' , Aramaic ''mem'' 𐡌, Syriac ''mīm'' ܡ, Arabic ''mīm'' , and Phoenician ''mēm'' 𐤌. Its sound value is . It is also relate ...

MKDIR (make directory) command (computing), command in the Unix, DOS, Digital Research, DR FlexOS, IBM OS/2, Microsoft Windows, and ReactOS operating systems is used to make a new directory (file systems), directory. It is also available in the Unified ...

* MKZOMBIE *

MODE Mode ( meaning "manner, tune, measure, due measure, rhythm, melody") may refer to: Arts and entertainment * MO''D''E (magazine), a defunct U.S. women's fashion magazine * ''Mode'' magazine, a fictional fashion magazine which is the setting fo ...

MORE More may refer to: Computing * MORE (application), outline software for Mac OS * more (command), a shell command * MORE protocol, a routing protocol * Missouri Research and Education Network Music Albums * ''More!'' (album), by Booka Shade, ...

* NLSFUNC *

PATH A path is a route for physical travel – see Trail. Path or PATH may also refer to: Physical paths of different types * Bicycle path * Bridle path, used by people on horseback * Course (navigation), the intended path of a vehicle * Desir ...

* PAUSE * PRINT * PROMPT * RD * RDZOMBIE * REM * REN *

RENAME Rename may refer to: * Rename (computing), rename of a file on a computer * RENAME (command), command to rename a file in various operating systems * Rename (relational algebra), unary operation in relational algebra * Company renaming, rename ...

* REPLACE *

RMDIR In computing, rmdir (or rd) is a command which will remove an empty directory on various operating systems. Implementations The command is available in Unix (e.g. macOS, Solaris, AIX, HP-UX), Unix-like (e.g. FreeBSD, Linux), DOS, Digital ...

SET Set, The Set, SET or SETS may refer to: Science, technology, and mathematics Mathematics *Set (mathematics), a collection of elements *Category of sets, the category whose objects and morphisms are sets and total functions, respectively Electro ...

* SETDRV * SETVER * SHARE * SHIFT *

SORT Sort may refer to: * Sorting, any process of arranging items in sequence or in sets ** Sorting algorithm, any algorithm for ordering a list of elements ** Mainframe sort merge, sort utility for IBM mainframe systems ** Sort (Unix), which sorts the ...

SUBST In computing, SUBST is a command on the DOS, IBM OS/2, Microsoft Windows and ReactOS operating systems used for substituting paths on physical and logical drives as virtual drives. Overview In MS-DOS, the SUBST command was added with the relea ...

* SYS *

TIME Time is the continuous progression of existence that occurs in an apparently irreversible process, irreversible succession from the past, through the present, and into the future. It is a component quantity of various measurements used to sequ ...

TREE In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

TYPE Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * ...

* UNINSTALL *

VER Ver or VER may refer to: * Voluntary Export Restraints, in international trade * VER, the IATA airport code for Veracruz International Airport * Volk's Electric Railway, Brighton, England * VerPublishing, of the German group VDM Publishing, re ...

VERIFY CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system's DOS BIOS (typically residi ...

* VOL

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 rive:

Hardware requirements

Intel 80286 The Intel 80286 (also marketed as the iAPX 286 and often called Intel 286) is a 16-bit microprocessor that was introduced on February 1, 1982. It was the first 8086-based CPU with separate, non- multiplexed address and data buses and also the f ...

CPU or better * 512 KB RAM or more

References

External links

*
Unofficial PTS-DOS FAQ

Paragon GmbH homepage
DOS variants Assembly language software Disk operating systems 1993 software {{Operating-system-stub