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The VAX was a best-seller, with over 400, 000 sold, and its sales through the 1980s propelled the company into the second largest in the industry.
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VAX and was
The Eclipse family of systems was later introduced with an extended upwardly compatible instruction set, and the MV-series further extended the Eclipse into a 32-bit architecture to compete with the DEC VAX.
PRISM was intended to be a flexible design, supporting both Unix-like applications, as well as Digital's existing VMS programs from the VAX after minor conversion.
It was clear a third generation would completely outperform the VAX in all ways, not just on cost.
A persistent report attributed to DEC insiders suggests the choice of the AXP tag for the processor was made by DEC's legal department, which was still smarting from the VAX trademark fiasco.
Monster was a multi-user adventure game created by Richard Skrenta for the VAX and written in VMS Pascal.
DSM-11 was superseded by VAX / DSM for the VAX / VMS platform, and that was ported to the Alpha in two variants: DSM for OpenVMS, and as DSM for Ultrix.
A similar approach was used by Digital Equipment Corporation in their VAX family of computers.
When this compiler was ported to the VAX platform, a common backend for Mary and CHILL was implemented.
In the late 1970s, minicomputer performance was compared using VAX MIPS, where computers were measured on a task and their performance rated against the VAX 11 / 780 that was marketed as a 1 MIPS machine.
( The measure was also known as the VAX Unit of Performance or VUP.
By 1986 the system was complete to the point of being able to run on its own on the DEC VAX.
The PDP-10 was eventually eclipsed by the VAX superminicomputer machines ( descendants of the PDP-11 ) when DEC recognized that the PDP-10 and VAX product lines were competing with each other and decided to concentrate its software development effort on the more profitable VAX.
The 32-bit VAX series was descended from it, and early VAX models had a PDP-11 compatibility mode.
VAX and with
In order to support the VAX architecture with reasonable performance, PRISM included a user-programmable microcode known as Epicode.
The chip designers at Digital continued pursuing sophisticated manual circuit design in order to deal with the overly complex VAX architecture.
To maintain a level of compatibility with VAX, the 32-bit architecture the Alpha succeeded, two VAX data types were included:
They also overpriced ; believing they were competing with the KL10 and VAX 8600 and not startups such as Sun Microsystems building workstations with comparable power at a fraction of the price.
Architectures with instruction sets implemented by complex microprograms included the IBM System / 360 and Digital Equipment Corporation VAX.
The VAX 11 / 780 with FPA ( 1977 ) is shown as having a rating of 1. 02 MWIPS.
Used in various publishing environments, it was also offered with DECset, Digital's VAX / VMS 3. x native mode OEM version of the Datalogics Pager automated batch composition engine.
In the late 1980s, the Fortran version was extensively rewritten for VAX Fortran and became fully compatible with the last MDL release.
It was somewhat similar in spirit to ( but not compatible with ) the popular DEC VAX minicomputer instruction set.
Digital Equipment Corporation, at the time one of IBM's main competitors, exploited this weakness with their wide ranging VAX product line based on a single architecture, and actively promoted the compatibility between all machines in the family.
People who are familiar with the PDP-11 or VAX usually feel comfortable with the 68000.
Although UUCP was originally developed on Unix and is most closely associated with Unix-like systems, UUCP implementations exist for several non-Unix-like operating systems, including Microsoft's MS-DOS, Digital's VAX / VMS, Commodore's AmigaOS, classic Mac OS, and even CP / M.
The first native VAX UNIX product from DEC was Ultrix-32, based on 4. 2BSD with some non-kernel features from System V, and was released in June 1984.
Later, DEC replaced Ultrix as its Unix offering with OSF / 1 for the Alpha, ending Unix development on the MIPS and VAX platforms.
* DEC achieved similar success with its translation tools to help users migrate from the CISC VAX architecture to the Alpha RISC architecture.
Digital Equipment Corporation became the number two computer company behind IBM with their popular PDP and VAX computer systems.
VAX and over
Kučera wrote one of the first spell checkers over Christmas, 1981, in PL / I for VAX machines, at the behest of Digital Equipment Corporation.
Most RISC machines have only about five simple addressing modes, while CISC machines such as the DEC VAX supermini have over a dozen addressing modes, some of which are quite complicated.
Their project ( code-named " Fountainhead ") is to give Data General a machine to compete with the new VAX computer from Digital Equipment Corporation ( DEC ), which is starting to take over the new 32-bit minicomputer market.
MEX was originally loaded over a network through the utilization of GL1 routines kept on a remote host machine, usually a VAX.
Before its demise, the Holos Server product ran under Windows NT ( Intel and Alpha ), VMS ( VAX and Alpha ), plus about 10 flavours of UNIX, and accessed over half-a-dozen different SQL databases.
The system could communicate image data externally over an 80M per second " Yapbus " or a 2M per second multibus to other hosts, data sources or disks and had a performance measured equivalent to 200 VUPS, or 200 times the speed of a VAX 11 / 780.
For over 30 years, he was involved in implementing PDP, VAX, and Alpha computers with their respective operating systems RSX, VAX / VMS ; and OpenVMS & Windows NT.
VAX and 400
Shannon's reporting on the minicomputer industry included extensive analysis of the inroads made by IBM's AS / 400 line of minicomputers against Digital's VAX line.
VAX and 000
* 1, 000 VAX MIPS based on the Dhrystone benchmark.
VAX and sold
Although the first commercial sales were for VAX / VMS, from the mid-1980s the main Poplog development work was done on Sun SPARC computers running Solaris, although several different versions were sold, including versions for HP-UX and a 64-bit version of Poplog for DEC Alpha running Digital UNIX.
In 1994 DEC sold its PDP-11 software business to a company named Mentec, and DEC then essentially discontinued releases of RSTS in order to concentrate on their VAX series of minicomputers.
The 90x processor benchmarked at roughly twice the speed of the VAX, and sold for about half the price.
The VAXBI bus ( VAX Bus Interconnect bus ) was a computer bus designed and sold by the Digital Equipment Corporation ( DEC ) of Maynard, Massachusetts.
3Com's version was an enhancement of the basic LAN Manager package, also sold by Microsoft and IBM and on other operating systems-for example, running on VAX / VMS it was the basis of DEC Pathworks.
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