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Information about Tss 8

TSS-8
Company/
developer:		Digital Equipment Corporation
Source model:Closed Source
Latest stable release:8.24 / February 1975 [1]
Available language(s):ALGOL, BASIC, FOCAL, Fortran D, PAL-D
Supported platforms:PDP-8
Kernel type:Time-sharing operating systems
Default user interface:Command_line_interface
License:Proprietary
Working state:Abandoned.
TSS-8 was a little Time-sharing Operating System co-written by Don Witcraft and John Everett at Digital Equipment Corporation in 1967. The Operating System ran on the 12bit PDP-8 computer and was released in 1968.

"Don Witcraft wrote the TSS-8 scheduler, command decoder and UUO (Unimplemented User Operations) handler. John Everett wrote the disk handler, file system, TTY (teletypewriter) handler and 680-I service routine for TSS-8"

"Roger Pyle and John Everett wrote the PDP-8 Disk Monitor System, and John Everett adapted PAL-III to make PAL-D for DMS. Bob Bowering, author of MACRO for the PDP-6 and PDP-10, wrote an expanded version, PAL-X, for TSS-8." [2]


This timesharing system:

"was based on a protection architecture proposed by Adrian Van Der Goor, a grad student of Gordon Bell's at Carnegie-Mellon. It requires a minimum of 12K words of memory and a swapping device; on a 24K word machine, it could give good support for 17 users."

"Each user gets a virtual 4K PDP-8; many of the utilities users ran on these virtual machines were only slightly modified versions of utilities from the Disk Monitor System or paper-tape environments. Internally, TSS-8 consists of RMON, the resident monitor, DMON, the disk monitor (file system), and KMON, the keyboard monitor (command shell). BASIC was well supported, while restricted (4K) versions of FORTRAN D and Algol were available." [3]

References

1. ^ OS history
2. ^ FAQs
3. ^ FAQs
The term software company could be applied to: a) a company that produces software, distributes software from a third party, or provides services such as custom software development.
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A software developer is a person who is concerned with one or more facets of the software development process, a somewhat broader scope of computer programming or a specialty of project managing.
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Digital Equipment Corporation was a pioneering American company in the computer industry. It is often referred to within the computing industry as DEC. (This acronym was frequently officially used by Digital itself,[1] but the official name was always DIGITAL.
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Closed source is a term for software whose license does not meet the definition of open-source software. Generally, it means only the binaries of a computer program are distributed and the license provides no access to the program's source code, rendering modifications to the
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19th century - 20th century - 21st century
1940s  1950s  1960s  - 1970s -  1980s  1990s  2000s
1972 1973 1974 - 1975 - 1976 1977 1978

Year 1975 (MCMLXXV
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In the philosophy of language, a natural language (or ordinary language) is a language that is spoken, written, or signed (visually or tactilely) by humans for general-purpose communication, as distinguished from formal languages (such as computer-programming
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Algol (β Per / Beta Persei) is a bright star in the constellation Perseus. It is one of the best known eclipsing binaries, the first such star to be discovered, and also one of the first (non-nova) variable stars to be discovered.
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Basic may be:
  • BASIC, programming language
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  • Basic (chemistry), the opposite to acidic, reacting with acids to form salts
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Focal may refer to:
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  • FOCAL (programming language)
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Fortran

Paradigm: multi-paradigm: procedural, imperative, structured, object-oriented
Appeared in: 1957
Designed by: John W. Backus
Developer: John W.
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PAL-III was the assembly language processor for the PDP-8 computer family sold by Digital Equipment Corporation of Maynard, Massachusetts. It followed an earlier product known as PAL-8.
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PDP-8 was the first successful commercial minicomputer, produced by Digital Equipment Corporation (DEC) in the 1960s. It was introduced on March 22, 1965 [1] and was the first widely sold computer in the DEC PDP series of computers (the PDP-5 was not originally intended
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The user interface (or Human Machine Interface) is the aggregate of means by which people (the users) interact with a particular machine, device, computer program or other complex tool (the system).
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A software license comprises the permissions, rights and restrictions imposed on software (whether a component or a free-standing program). Use of software without a license could constitute infringement of the owner's exclusive rights under copyright or, occasionally, patent law
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Proprietary software (also called non-free software or closed-source software) is software with restrictions on using, copying and modifying as enforced by the proprietor.
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An operating system (OS) is the software that manages the sharing of the resources of a computer. An operating system processes system data and user input, and responds by allocating and managing tasks and internal system resources as a service to users and programs of the
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Digital Equipment Corporation was a pioneering American company in the computer industry. It is often referred to within the computing industry as DEC. (This acronym was frequently officially used by Digital itself,[1] but the official name was always DIGITAL.
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19th century - 20th century - 21st century
1930s  1940s  1950s  - 1960s -  1970s  1980s  1990s
1964 1965 1966 - 1967 - 1968 1969 1970

Year 1967 (MCMLXVII
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PDP-8 was the first successful commercial minicomputer, produced by Digital Equipment Corporation (DEC) in the 1960s. It was introduced on March 22, 1965 [1] and was the first widely sold computer in the DEC PDP series of computers (the PDP-5 was not originally intended
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19th century - 20th century - 21st century
1930s  1940s  1950s  - 1960s -  1970s  1980s  1990s
1965 1966 1967 - 1968 - 1969 1970 1971

Year 1968 (MCMLXVIII
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PDP-8 was the first successful commercial minicomputer, produced by Digital Equipment Corporation (DEC) in the 1960s. It was introduced on March 22, 1965 [1] and was the first widely sold computer in the DEC PDP series of computers (the PDP-5 was not originally intended
..... Click the link for more information.
The PDP-6 (Programmed Data Processor-6) was a computer model developed by Digital Equipment Corporation (DEC) in 1963. It was influential primarily as the prototype (effectively) for the later PDP-10; the instruction sets of the two machines are
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The PDP-10 was a computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s on; the name stands for "Programmed Data Processor model 10". It was the machine that made time-sharing common; it looms large in hacker folklore because of its adoption in the 1970s
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C. Gordon Bell (born August 19, 1934) is a computer engineer and manager. An early employee of Digital Equipment Corporation (DEC), Bell designed several of their PDP machines and later became Vice President of Engineering, overseeing the development of the VAX.
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