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15.04.2018 • site rencontre libertins site de rencontrepour ado

product lines were competing with each other and decided to concentrate its software. Its cycle time is 1 s and its add time.1. (Multi-section extended addressing is covered in the DECsystem-10/decsystem-20 Processor Reference Manual.) 22 Addressing edit The PDP-10 has 36-bit words and 18-bit word addresses. Besides the difference in memory referencing described above, supervisor-mode programs can execute input/output operations. DEC later ported Tenex to the KL10, enhanced it considerably, and named it tops-20, forming the decsystem-20 line. For example, jumpn A,LOC jumps to the address LOC if the contents of register A is non-zero. The KL10's performance was about 1 megaflops using 36-bit floating point numbers on matrix row reduction. Incompatible Timesharing System "Incompatible Timesharing System". 30 Bill Gates and Paul Allen originally wrote Altair basic using an Intel 8080 emulator running on a PDP-10 at Harvard University.

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The picture on the right hand side shows the light panel of the MF10 memory which is contemporary with the KI10 CPU. Tops-10 versions.02 and.03 also use extended addressing when run on a 1090 (or 1091) Model B processor running tops-20 microcode. This item is part of a computer museum, and was populated with LEDs in 2008 for demonstration purposes only.

product lines were competing with each other and decided to concentrate its software. Its cycle time is 1 s and its add time.1. (Multi-section extended addressing is covered in the DECsystem-10/decsystem-20 Processor Reference Manual.) 22 Addressing edit The PDP-10 has 36-bit words and 18-bit word addresses. Besides the difference in memory referencing described above, supervisor-mode programs can execute input/output operations. DEC later ported Tenex to the KL10, enhanced it considerably, and named it tops-20, forming the decsystem-20 line. For example, jumpn A,LOC jumps to the address LOC if the contents of register A is non-zero. The KL10's performance was about 1 megaflops using 36-bit floating point numbers on matrix row reduction. Incompatible Timesharing System "Incompatible Timesharing System". 30 Bill Gates and Paul Allen originally wrote Altair basic using an Intel 8080 emulator running on a PDP-10 at Harvard University.

25 Tymshare developed tymcom-X, 26 derived from tops-10 but using a page-based file system like tops-20. This mechanism is also used to emulate operations which may not have hardware implementations in cheaper models. Org site rencontre libertins site de rencontrepour ado (Computer History Wiki). There are three main classes of instruction: arithmetic, logical, and move; conditional jump; conditional skip (which may have side effects). 376 "DECsystem-2020 Gordon Bell". The CPU's general-purpose registers can also be addressed as memory locations 0-15. Dynamic paging and working set management "PDP-10 KA10 documents". The commercial timesharing services such as CompuServe, On-Line Systems (OLS and Rapidata maintained sophisticated inhouse systems programming groups site rencontre libertins site de rencontrepour ado so that they could modify the operating system as needed for their own businesses without being dependent on DEC or others. In popular culture edit Swordfish Hugh Jackman's character accesses "The only PDP10 active and on the internet" which is in the basement of a Caltech building where he hides his worm creation program. 36 bit mainframe computer family built "DEC 10" redirects here. There are also conditional jumps based on the processor's condition register using the jrst instruction. CompuServe offered to license the design for its KL supply to DEC for free if site rencontre libertins site de rencontrepour ado DEC would promise that any new KL bought by CompuServe would have the more efficient supply installed. If all those bits are E qual to zero, skip the next instruction; and in any case, replace those bits by their boolean complement. "Origins and Development of tops-20". The TM10 Magtape controller was available in two submodels: TM10A did cycle-stealing to/from PDP-10 memory using the KA10 Arithmetic Processor TM10B accessed PDP-10 memory using a DF10 Data Channel, without "cycle stealing" from the KA10 Arithmetic Processor 21 :pp.49-54 Instruction. A sort of extended beta-testing team Tim Shoppa "Announcing KLH10", November 10, 2001. Networking 19 and Remote Job Entry (RJE) were accomplished via a PDP-11/34a frontend, for which was DEC used the terms DN60 and D60SPL 20 KS frontends edit The KS system uses a similar boot procedure. Both could run either tops-10 or tops-20 microcode and thus the corresponding operating system. Each segment is contiguous. Earlier models give a user process a "high" and a "low" memory: addresses with a 0 top bit used one base register, and higher addresses used another. While the first such systems were bought from DEC, when DEC abandoned the PDP-10 architecture in favor of the VAX, CompuServe and other PDP-10 customers began buying plug compatible computers from Systems Concepts. The cost of conversion was easily offset by cost savings in electricity use, reduced heat, and labor needed to replace burned-out lamps. Module in this context meant a cabinet, dimensions roughly (WxHxD) 30 x 75 x. Later architectures have paged memory access, allowing non-contiguous address spaces. Kossow, Al (interviewer) (August 29, 2007). The PDP-10 product line cancellation was announced in 1983, including cancelling the ongoing Jupiter project to produce a new high-end PDP-10 processor (despite that project being in good shape at the time of the cancellation) and the Minnow project. 27 In 1971 to 1972, researchers at Xerox parc were frustrated by top company management's refusal to let them buy a PDP-10. The KS was marketed as the DECsystem-2020, DEC's entry in the distributed processing arena, and it was introduced as "the world's lowest cost mainframe computer system." 10 KA10 edit The KA10 has a maximum main memory capacity (both virtual.

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The conditional jump operations examine register contents and jump to a given location depending on the result of the comparison. S models and beyond were marketed under the DECsystem-10 name, especially as the. Archived from the original (PDF) on Retrieved 14 November 2015. The conditional skip operations compare register and memory contents and skip the next instruction (which is often an unconditional jump) depending on the result of the comparison. 31 This article is based in part on the Jargon File, which is in the public domain. Craig Mudge, John.

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