Multics

System/360 - Key features of lasting impact. The System/360 introduced a number of industry standards to the marketplace, such as: The 8-bit byte (against financial pressure during development to reduce the byte to 4 or 6 bits) Byte-addressable memory (as opposed to word-addressable memory) 32-bit words Two's complement arithmetic Segmented and paged memory Commercial use of microcoded CPUs The IBM Floating Point Architecture (until superseded by ...

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System/360, System/360 - System/360 history, System/360 - A family of computers, System/360 - The project's size and gravity, System/360 - Models, System/360 - Successors and variants, System/360 - Technical description, System/360 - Key features of lasting impact, System/360 - Architectural overview, System/360 - Basic hardware components, System/360 - Operating system software, System/360 - Remaining machines, System/360 - Notes

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Support for inter-IMP circuits of up to 230.4 kbit/s was added in 1970, although considerations of cost and IMP processing power meant this capability was not much used. 1971 saw the start of the use of the non-ruggedized (and therefore significant lighter) H-316 as an IMP. It could also be configured as a Terminal IMP (TIP), which added support for up to 63 ASCII serial terminals through a multi-line controller in place of one of the hosts. The 316 featured a greater degree of integration than the 516, which made it less expensive an ...

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ARPANET, ARPANET - Background of the ARPANET, ARPANET - Origins of the ARPANET, ARPANET - Creation of the ARPANET, ARPANET - Initial ARPANET deployment, ARPANET - Software and protocol development, ARPANET - Applications, ARPANET - Growth of the network, ARPANET - Later hardware developments, ARPANET - The ARPANET and nuclear attacks, ARPANET - Trivia, ARPANET - Retrospective, ARPANET - Notes

Read more here: » ARPANET: Encyclopedia II - ARPANET - Later hardware developments

A common semi-myth about the ARPANET states that it was designed to be resistant to nuclear attack. The Internet Society writes about the merger of technical ideas that produced the ARPANET in A Brief History of the Internet, and states in a note: It was from the RAND study that the false rumor started claiming that the ARPANET was somehow related to building a network resistant to nuclear war. This was never true of the ARPANET, only the unrelated (sic) RAND study on secure voice considered nuclear war. However ...

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ARPANET, ARPANET - Background of the ARPANET, ARPANET - Origins of the ARPANET, ARPANET - Creation of the ARPANET, ARPANET - Initial ARPANET deployment, ARPANET - Software and protocol development, ARPANET - Applications, ARPANET - Growth of the network, ARPANET - Later hardware developments, ARPANET - The ARPANET and nuclear attacks, ARPANET - Trivia, ARPANET - Retrospective, ARPANET - Notes

Read more here: » ARPANET: Encyclopedia II - ARPANET - The ARPANET and nuclear attacks

This is a simple interchange sort of the current text buffer, based on the 1st character of each line, taken from the PDP-11 TECO User's Guide. A "goto" and "structured" version are shown. Note that TECO ignores case and whitespace (except tab, which is an insertion command). Text Editor and Corrector - Example 1. !START! j 0aua ! jump to beginning, load 1st char in register A ! !CONT! l 0aub ! load first char of next line in register B ! qa-qb"g xa k -l ga 1uz ' ! if ...

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Text Editor and Corrector, Text Editor and Corrector - Description and impact, Text Editor and Corrector - History, Text Editor and Corrector - Example TECO code, Text Editor and Corrector - Example TECO programs, Text Editor and Corrector - Example 1, Text Editor and Corrector - Example 2, Text Editor and Corrector - TECO Trivia

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TECO, noted for its complex syntax, can be considered a general-purpose, interpreted programming language targeted for text manipulation. Its great power was the ability to construct complex macros using matching criteria that rival the regular expressions in common use today. Almost every character is a command—a one- or two-character sequence replaces the usual keywords of more verbose languages—thus any character string is a TECO program, although not necessarily a useful one. One common game was to imagine editing a file using TECO ...

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Text Editor and Corrector, Text Editor and Corrector - Description and impact, Text Editor and Corrector - History, Text Editor and Corrector - Example TECO code, Text Editor and Corrector - Example TECO programs, Text Editor and Corrector - Example 1, Text Editor and Corrector - Example 2, Text Editor and Corrector - TECO Trivia

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ALGOL 68 - Report on the Algorithmic Language Algol 68. Edited by: A. van Wijngaarden, B.J. Mailloux, J.E.L. Peck and C.H.A. Koster "Van Wijngaarden once characterized the four authors, somewhat tongue-in-cheek, as: Koster: transputter, Peck: syntaxer, Mailloux: implementer, Van Wijngaarden: party ideologist." -- Koster. ALGOL 68 - Revised Report on the Algorithmic Language Algo ...

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ALGOL 68, ALGOL 68 - Time-line of ALGOL 68, ALGOL 68 - Report on the Algorithmic Language Algol 68, ALGOL 68 - Revised Report on the Algorithmic Language Algol 68, ALGOL 68 - Notable Language Elements, ALGOL 68 - Bold Symbols and Reserved Words, ALGOL 68 - Units: Expressions, ALGOL 68 - mode: Declarations, ALGOL 68 - Coercions: casting, ALGOL 68 - prag & co: Code Pragments and Comments, ALGOL 68 - Expressions and compound statements, ALGOL 68 - struct union & [:]: Structures unions and arrays, ALGOL 68 - proc: Procedures, ALGOL 68 - op: Operators, ALGOL 68 - transput: Input and output, ALGOL 68 - par: Parallel processing, ALGOL 68 - Code sample, ALGOL 68 - Program representation, ALGOL 68 - Some Vanitas, ALGOL 68 - Comparison to C++, ALGOL 68 - Variants, ALGOL 68 - The language of the unrevised Report, ALGOL 68 - Extension proposals from IFIP WG 2.1, ALGOL 68 - True ALGOL 68s Specification and Implementation Timeline, ALGOL 68 - Implementation specific extensions, ALGOL 68 - Quotes

Read more here: » ALGOL 68: Encyclopedia II - ALGOL 68 - Time-line of ALGOL 68

In March, 1970, the ARPANET reached the U.S. East Coast, when an IMP at BBN itself was joined up to the network. Thereafter, the network grew quickly: 9 IMPs by June of 1970, and 13 by December; 18 by September, 1971 (at which point twenty-three hosts, at universities and government research centers, were connected to the ARPANET); 29 by August, 1972, and 40 by September, 1973. At that point two satellite links, across the Pacific and Atlantic Oceans to Hawaii and Norway respectively, had been added to the network. From Norway, a terrestrial circu ...

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ARPANET, ARPANET - Background of the ARPANET, ARPANET - Origins of the ARPANET, ARPANET - Creation of the ARPANET, ARPANET - Initial ARPANET deployment, ARPANET - Software and protocol development, ARPANET - Applications, ARPANET - Growth of the network, ARPANET - Later hardware developments, ARPANET - The ARPANET and nuclear attacks, ARPANET - Trivia, ARPANET - Retrospective, ARPANET - Notes

Read more here: » ARPANET: Encyclopedia II - ARPANET - Growth of the network

Except where noted (with a superscript), the language described above is that of the "Revised Report(2)". ALGOL 68 - The language of the unrevised Report. The original language(1) differs in syntax of the mode cast, and it had the feature of proceduring, i.e. coercing the value of a term into a procedure which evaluates the term. Proceduring effectively can make evaluations lazy. The most useful application could have been the short-circuite ...

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ALGOL 68, ALGOL 68 - Time-line of ALGOL 68, ALGOL 68 - Report on the Algorithmic Language Algol 68, ALGOL 68 - Revised Report on the Algorithmic Language Algol 68, ALGOL 68 - Notable Language Elements, ALGOL 68 - Bold Symbols and Reserved Words, ALGOL 68 - Units: Expressions, ALGOL 68 - mode: Declarations, ALGOL 68 - Coercions: casting, ALGOL 68 - prag & co: Code Pragments and Comments, ALGOL 68 - Expressions and compound statements, ALGOL 68 - struct union & [:]: Structures unions and arrays, ALGOL 68 - proc: Procedures, ALGOL 68 - op: Operators, ALGOL 68 - transput: Input and output, ALGOL 68 - par: Parallel processing, ALGOL 68 - Code sample, ALGOL 68 - Program representation, ALGOL 68 - Some Vanitas, ALGOL 68 - Comparison to C++, ALGOL 68 - Variants, ALGOL 68 - The language of the unrevised Report, ALGOL 68 - Extension proposals from IFIP WG 2.1, ALGOL 68 - True ALGOL 68s Specification and Implementation Timeline, ALGOL 68 - Implementation specific extensions, ALGOL 68 - Quotes

Read more here: » ALGOL 68: Encyclopedia II - ALGOL 68 - Variants

The initial ARPANET consisted of four IMPs. They were installed at: UCLA, where Leonard Kleinrock had established a Network Measurement Center (with an SDS Sigma 7 being the first computer attached to it). The Stanford Research Institute's Augmentation Research Center, where Douglas Engelbart had created the ground-breaking NLS system, a very important early hypertext system (with the SDS 940 that ran NLS, named 'Genie', being the first host attached). The University of California, Santa Barbara (with the Culle ...

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ARPANET, ARPANET - Background of the ARPANET, ARPANET - Origins of the ARPANET, ARPANET - Creation of the ARPANET, ARPANET - Initial ARPANET deployment, ARPANET - Software and protocol development, ARPANET - Applications, ARPANET - Growth of the network, ARPANET - Later hardware developments, ARPANET - The ARPANET and nuclear attacks, ARPANET - Trivia, ARPANET - Retrospective, ARPANET - Notes

Read more here: » ARPANET: Encyclopedia II - ARPANET - Initial ARPANET deployment

Regarding the computing features, the nearest living sibling to ALGOL 68 may be C++, making this a good comparison candidate: C++ has not: nested functions, definable operator symbols and priorities, garbage collection, use before define, formatted transput using complex formatting declarations, assignment operation symbol (to avoid confusion with equal sign), arrays (and slice operations on them, but in layered libraries), autom ...

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ALGOL 68, ALGOL 68 - Time-line of ALGOL 68, ALGOL 68 - Report on the Algorithmic Language Algol 68, ALGOL 68 - Revised Report on the Algorithmic Language Algol 68, ALGOL 68 - Notable Language Elements, ALGOL 68 - Bold Symbols and Reserved Words, ALGOL 68 - Units: Expressions, ALGOL 68 - mode: Declarations, ALGOL 68 - Coercions: casting, ALGOL 68 - prag & co: Code Pragments and Comments, ALGOL 68 - Expressions and compound statements, ALGOL 68 - struct union & [:]: Structures unions and arrays, ALGOL 68 - proc: Procedures, ALGOL 68 - op: Operators, ALGOL 68 - transput: Input and output, ALGOL 68 - par: Parallel processing, ALGOL 68 - Code sample, ALGOL 68 - Program representation, ALGOL 68 - Some Vanitas, ALGOL 68 - Comparison to C++, ALGOL 68 - Variants, ALGOL 68 - The language of the unrevised Report, ALGOL 68 - Extension proposals from IFIP WG 2.1, ALGOL 68 - True ALGOL 68s Specification and Implementation Timeline, ALGOL 68 - Implementation specific extensions, ALGOL 68 - Quotes

Read more here: » ALGOL 68: Encyclopedia II - ALGOL 68 - Comparison to C++

For its technical intricacies, ALGOL 68 needs a cornucopia of methods to deny the existence of something: skip, "~" or "?"C - an undefined value always syntactically valid, void - syntactically like a mode, but not one, nil or "∘" - a name not denoting anything, of no mode, empty - the only value admissible to void, needed for selecting void in a union, [1:0]int - an empty array of integral values, with mode []int, undefined - a procedure raisi ...

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ALGOL 68, ALGOL 68 - Time-line of ALGOL 68, ALGOL 68 - Report on the Algorithmic Language Algol 68, ALGOL 68 - Revised Report on the Algorithmic Language Algol 68, ALGOL 68 - Notable Language Elements, ALGOL 68 - Bold Symbols and Reserved Words, ALGOL 68 - Units: Expressions, ALGOL 68 - mode: Declarations, ALGOL 68 - Coercions: casting, ALGOL 68 - prag & co: Code Pragments and Comments, ALGOL 68 - Expressions and compound statements, ALGOL 68 - struct union & [:]: Structures unions and arrays, ALGOL 68 - proc: Procedures, ALGOL 68 - op: Operators, ALGOL 68 - transput: Input and output, ALGOL 68 - par: Parallel processing, ALGOL 68 - Code sample, ALGOL 68 - Program representation, ALGOL 68 - Some Vanitas, ALGOL 68 - Comparison to C++, ALGOL 68 - Variants, ALGOL 68 - The language of the unrevised Report, ALGOL 68 - Extension proposals from IFIP WG 2.1, ALGOL 68 - True ALGOL 68s Specification and Implementation Timeline, ALGOL 68 - Implementation specific extensions, ALGOL 68 - Quotes

Read more here: » ALGOL 68: Encyclopedia II - ALGOL 68 - Some Vanitas

See also: Operating systems timeline List of operating systems - Early proprietary microcomputer OS. Apple Computer Apple DOS (initial version was Read-only memory firmware together with Integer BASIC; later versions included a Microsoft BASIC) Business Operating System (BOS) - cross platform, command-line based Commodore PET, Commodore 64, and Commodore VIC-20, The very first IBM-PC (3 OS offered to start, UCSD p-System, CPM-86, PC-DOS) Sinclair Micro and Q ...

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List of operating systems, List of operating systems - Early and historically important, List of operating systems - Early proprietary microcomputer OS, List of operating systems - Proprietary, List of operating systems - Acorn, List of operating systems - Amiga, List of operating systems - Apple/Macintosh, List of operating systems - Array Networks, List of operating systems - Atari ST, List of operating systems - Burroughs later Unisys, List of operating systems - Convergent Technologies, List of operating systems - Be Incorporated, List of operating systems - Digital/Tandem Computers/Compaq/HP, List of operating systems - IBM, List of operating systems - Microsoft, List of operating systems - Other, List of operating systems - UNIVAC later Unisys, List of operating systems - Nonproprietary Unix-like, List of operating systems - Research Unix-like and other POSIX-compliant systems, List of operating systems - Open source Unix-like, List of operating systems - Nonproprietary non-Unix-like, List of operating systems - Research non-Unix-like, List of operating systems - Open source non-Unix-like, List of operating systems - Disk operating system, List of operating systems - Network operating systems, List of operating systems - Generic/commodity non-Unix and other, List of operating systems - Operating systems for БК soviet personal computer, List of operating systems - Hobby OS, List of operating systems - Embedded, List of operating systems - Personal digital assistants PDAs, List of operating systems - Smartphones, List of operating systems - Router, List of operating systems - Microcontroller Real-time operating system, List of operating systems - Interpreted, List of operating systems - Fictional operating systems, List of operating systems - LEGO Mindstorms

Read more here: » List of operating systems: Encyclopedia II - List of operating systems - Early and historically important

At one time, "bus" meant an electrically parallel system, with electrical conductors similar or identical to the pins on the CPU. This is no longer the case, and modern systems are blurring the lines between buses and networks. Buses can be parallel buses, which carry data words striped across multiple wires, or serial buses, which carry data in bit-serial form. The addition of extra power and control connections, differential drivers, and data connections in each direction usually means that most serial buses have more conductors tha ...

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Computer bus, Computer bus - History, Computer bus - Description, Computer bus - Bus topology, Computer bus - Examples of internal computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Examples of external computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Proprietary, Computer bus - Examples of internal/external computer buses

Read more here: » Computer bus: Encyclopedia II - Computer bus - Description

List of operating systems - Personal digital assistants PDAs. Palm OS from Palm Inc; now spun off as PalmSource EPOC originally from Psion (UK), now from Symbian, preferred name now is Symbian OS Windows CE Windows Compact Edition, from Microsoft Pocket PC from Microsoft, a variant of Windows CE. Windows Mobile from Microsoft, a variant of Windows CE. Li ...

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List of operating systems, List of operating systems - Early and historically important, List of operating systems - Early proprietary microcomputer OS, List of operating systems - Proprietary, List of operating systems - Acorn, List of operating systems - Amiga, List of operating systems - Apple/Macintosh, List of operating systems - Array Networks, List of operating systems - Atari ST, List of operating systems - Burroughs later Unisys, List of operating systems - Convergent Technologies, List of operating systems - Be Incorporated, List of operating systems - Digital/Tandem Computers/Compaq/HP, List of operating systems - IBM, List of operating systems - Microsoft, List of operating systems - Other, List of operating systems - UNIVAC later Unisys, List of operating systems - Nonproprietary Unix-like, List of operating systems - Research Unix-like and other POSIX-compliant systems, List of operating systems - Open source Unix-like, List of operating systems - Nonproprietary non-Unix-like, List of operating systems - Research non-Unix-like, List of operating systems - Open source non-Unix-like, List of operating systems - Disk operating system, List of operating systems - Network operating systems, List of operating systems - Generic/commodity non-Unix and other, List of operating systems - Operating systems for БК soviet personal computer, List of operating systems - Hobby OS, List of operating systems - Embedded, List of operating systems - Personal digital assistants PDAs, List of operating systems - Smartphones, List of operating systems - Router, List of operating systems - Microcontroller Real-time operating system, List of operating systems - Interpreted, List of operating systems - Fictional operating systems, List of operating systems - LEGO Mindstorms

Read more here: » List of operating systems: Encyclopedia II - List of operating systems - Embedded

Operating systems that have only appeared in fiction. Finux - A pun on the Finnish origins of Linux - appears in Cryptonomicon ALTIMIT OS - From .hack Hyper OS - From the movie Patlabor Wheatonix - April fool's joke Digitronix - From The Hacker Files Luna/X - Google's 2004 April Fool's joke [4] Copland OS - From Serial Experiments Lain Navi computer, which is also the codename of a never released Apple Computer OS (see Vaporware). LCARS- From television's Star TrekSee also:

List of operating systems, List of operating systems - Early and historically important, List of operating systems - Early proprietary microcomputer OS, List of operating systems - Proprietary, List of operating systems - Acorn, List of operating systems - Amiga, List of operating systems - Apple/Macintosh, List of operating systems - Array Networks, List of operating systems - Atari ST, List of operating systems - Burroughs later Unisys, List of operating systems - Convergent Technologies, List of operating systems - Be Incorporated, List of operating systems - Digital/Tandem Computers/Compaq/HP, List of operating systems - IBM, List of operating systems - Microsoft, List of operating systems - Other, List of operating systems - UNIVAC later Unisys, List of operating systems - Nonproprietary Unix-like, List of operating systems - Research Unix-like and other POSIX-compliant systems, List of operating systems - Open source Unix-like, List of operating systems - Nonproprietary non-Unix-like, List of operating systems - Research non-Unix-like, List of operating systems - Open source non-Unix-like, List of operating systems - Disk operating system, List of operating systems - Network operating systems, List of operating systems - Generic/commodity non-Unix and other, List of operating systems - Operating systems for БК soviet personal computer, List of operating systems - Hobby OS, List of operating systems - Embedded, List of operating systems - Personal digital assistants PDAs, List of operating systems - Smartphones, List of operating systems - Router, List of operating systems - Microcontroller Real-time operating system, List of operating systems - Interpreted, List of operating systems - Fictional operating systems, List of operating systems - LEGO Mindstorms

Read more here: » List of operating systems: Encyclopedia II - List of operating systems - Fictional operating systems

List of operating systems - Research non-Unix-like. Mach (from OS kernel research at Carnegie Mellon University; see NeXTSTEP) Nemesis Cambridge University research OS - detailed quality of service abilities. http://www.cl.cam.ac.uk/Research/SRG/netos/old-projects/nemesis/ TUNES, 1994 V (operating system) from Stanford, early 1980s L4 Second generation microkernel ILIOS Research OS designe ...

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List of operating systems, List of operating systems - Early and historically important, List of operating systems - Early proprietary microcomputer OS, List of operating systems - Proprietary, List of operating systems - Acorn, List of operating systems - Amiga, List of operating systems - Apple/Macintosh, List of operating systems - Array Networks, List of operating systems - Atari ST, List of operating systems - Burroughs later Unisys, List of operating systems - Convergent Technologies, List of operating systems - Be Incorporated, List of operating systems - Digital/Tandem Computers/Compaq/HP, List of operating systems - IBM, List of operating systems - Microsoft, List of operating systems - Other, List of operating systems - UNIVAC later Unisys, List of operating systems - Nonproprietary Unix-like, List of operating systems - Research Unix-like and other POSIX-compliant systems, List of operating systems - Open source Unix-like, List of operating systems - Nonproprietary non-Unix-like, List of operating systems - Research non-Unix-like, List of operating systems - Open source non-Unix-like, List of operating systems - Disk operating system, List of operating systems - Network operating systems, List of operating systems - Generic/commodity non-Unix and other, List of operating systems - Operating systems for БК soviet personal computer, List of operating systems - Hobby OS, List of operating systems - Embedded, List of operating systems - Personal digital assistants PDAs, List of operating systems - Smartphones, List of operating systems - Router, List of operating systems - Microcontroller Real-time operating system, List of operating systems - Interpreted, List of operating systems - Fictional operating systems, List of operating systems - LEGO Mindstorms

Read more here: » List of operating systems: Encyclopedia II - List of operating systems - Nonproprietary non-Unix-like

List of operating systems - Research Unix-like and other POSIX-compliant systems. Unix (OS developed at Bell Labs ca 1970 initially by Ken Thompson) Minix (study OS developed by Andrew S. Tanenbaum in the Netherlands) Amoeba (research OS by Andrew S. Tanenbaum) Plan 9 (distributed OS developed at Bell Labs) - based on Unix design principles but not functionally identical Inferno (distributed OS originally from Bell Labs) Plan B (distributed OS derived from Plan 9 ...

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List of operating systems, List of operating systems - Early and historically important, List of operating systems - Early proprietary microcomputer OS, List of operating systems - Proprietary, List of operating systems - Acorn, List of operating systems - Amiga, List of operating systems - Apple/Macintosh, List of operating systems - Array Networks, List of operating systems - Atari ST, List of operating systems - Burroughs later Unisys, List of operating systems - Convergent Technologies, List of operating systems - Be Incorporated, List of operating systems - Digital/Tandem Computers/Compaq/HP, List of operating systems - IBM, List of operating systems - Microsoft, List of operating systems - Other, List of operating systems - UNIVAC later Unisys, List of operating systems - Nonproprietary Unix-like, List of operating systems - Research Unix-like and other POSIX-compliant systems, List of operating systems - Open source Unix-like, List of operating systems - Nonproprietary non-Unix-like, List of operating systems - Research non-Unix-like, List of operating systems - Open source non-Unix-like, List of operating systems - Disk operating system, List of operating systems - Network operating systems, List of operating systems - Generic/commodity non-Unix and other, List of operating systems - Operating systems for БК soviet personal computer, List of operating systems - Hobby OS, List of operating systems - Embedded, List of operating systems - Personal digital assistants PDAs, List of operating systems - Smartphones, List of operating systems - Router, List of operating systems - Microcontroller Real-time operating system, List of operating systems - Interpreted, List of operating systems - Fictional operating systems, List of operating systems - LEGO Mindstorms

Read more here: » List of operating systems: Encyclopedia II - List of operating systems - Nonproprietary Unix-like

Computer bus - Parallel. Advanced Technology Attachment or ATA (aka PATA, IDE, EIDE, ATAPI, etc.) disk/tape peripheral attachment bus (the original ATA is parallel, but see also the recent development Serial ATA, below) Centronics parallel (generally connects single device, occasionally 2 daisy-chained) HIPPI HIgh Performance Parallel Interface IEEE-488 (aka GPIB, General-Purpose Instrumentation Bus, and HPIB, Hewlett-Packard Instrumentation Bus) PCMCIA, now ...

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Computer bus, Computer bus - History, Computer bus - Description, Computer bus - Bus topology, Computer bus - Examples of internal computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Examples of external computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Proprietary, Computer bus - Examples of internal/external computer buses

Read more here: » Computer bus: Encyclopedia II - Computer bus - Examples of external computer buses

Further analysis demonstrated that the IPC performance problem was not as obvious as it seemed. Recall that a single-side of a syscall took 20 μs under BSD and 114 μs on Mach running on the same system. Of the 114, 11 was the context switch, identical to BSD. An additional 18 were used by the MMU to map the message between user-space and kernel space. This adds up to only 31 μs, longer than a traditional syscall, but not by much. The rest, the majority of the actual problem, was due to the kernel performing tasks such as checking t ...

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Mach kernel, Mach kernel - Traditional kernels, Mach kernel - Mach concepts, Mach kernel - Development, Mach kernel - Performance problems, Mach kernel - Potential solutions, Mach kernel - The Next Generation, Mach kernel - Operating systems based on Mach

Read more here: » Mach kernel: Encyclopedia II - Mach kernel - The Next Generation

Computer bus - Parallel. Accelerated graphics port or AGP (for video cards) CAMAC for instrumentation systems Extended ISA or EISA Industry Standard Architecture or ISA Low Pin Count or LPC MicroChannel or MCA MBus Multibus for industrial systems NuBus or IEEE 1196 Peripheral Component Interconnect or PCI S-100 bus or IEEE 696, used in the Altair and similar microcomputers SBus or IEEE 1496 VESA Local ...

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Computer bus, Computer bus - History, Computer bus - Description, Computer bus - Bus topology, Computer bus - Examples of internal computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Examples of external computer buses, Computer bus - Parallel, Computer bus - Serial, Computer bus - Proprietary, Computer bus - Examples of internal/external computer buses

Read more here: » Computer bus: Encyclopedia II - Computer bus - Examples of internal computer buses

Example is with the date / timestamp omitted. $ pwd /home/fred $ ls -l drwxr--r-- 1 fred editors 4096 drafts -rw-r--r-- 1 fred editors 30405 edition-32 -r-xr-xr-x 1 fred fred 8460 edit $ ls -F drafts/ edition-32 edit* Here we can see that the user fred has a directory named drafts, a regular file called edition-32, and an executable named edit in his home directory. ls uses a special permissions notation that describes what the user, group, and "world" (ev ...

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Ls, Ls - History, Ls - Behaviour, Ls - Sample usage, Ls - LC

Read more here: » Ls: Encyclopedia II - Ls - Sample usage

In the last section, we saw that the IPC overhead is a major issue for Mach 3 systems. However, the concept of a multi-server system is still promising, though it still requires some research. The developers have to be careful to isolate code into modules that do not call from server to server. For instance, the majority of the networking code would be placed in a single server, thereby minimizing IPC for normal networking tasks. Under Unix this isn't very easy, however, because the system is based on using the file system as th ...

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Mach kernel, Mach kernel - Traditional kernels, Mach kernel - Mach concepts, Mach kernel - Development, Mach kernel - Performance problems, Mach kernel - Potential solutions, Mach kernel - The Next Generation, Mach kernel - Operating systems based on Mach

Read more here: » Mach kernel: Encyclopedia II - Mach kernel - Potential solutions