As the speed of light in meters per second ( c < sub > 0 </ sub >) is fixed in the International System of Units, this measurement of the speed of light in AU / d ( c < sub > AU </ sub >) also determines the value of the astronomical unit in meters ( A ):

The remainder of day two included a two-second mid-course correction burn performed by the Command / Service Module's Service Propulsion System engine to tweak the spacecraft's trajectory.

While over the far side of the Moon, the Command / Service Module's Service Propulsion System engine burned for six minutes and fifteen seconds, braking the spacecraft into an orbit around the Moon with a low point ( pericynthion ) of 58. 3 and a high point ( apocynthion ) of 170. 4 nautical miles ( 108. 0 and 315. 6 km, respectively ).

* Attached Support Processor, one of the two early IBM System / 360 programs that replaces the native SPOOL facilities of OS / 360 ; the other was Houston Automatic Spooling Priority ( HASP ).

Originally released for the IBM 6150 RISC workstation, AIX now supports or has supported a wide variety of hardware platforms, including the IBM RS / 6000 series and later IBM POWER and PowerPC-based systems, IBM System i, System / 370 mainframes, PS / 2 personal computers, and the Apple Network Server.

Among other variants, IBM later produced AIX Version 3 ( also known as AIX / 6000 ), based on System V Release 3, for their IBM POWER-based RS / 6000 platform.

Since 1990, AIX has served as the primary operating system for the RS / 6000 series ( later renamed IBM eServer pSeries, then IBM System p, and now IBM Power Systems ).

The original AIX ( sometimes called AIX / RT ) was developed for the IBM 6150 RT workstation by IBM in conjunction with Interactive Systems Corporation, who had previously ported UNIX System III to the IBM PC for IBM as PC / IX.

AIX / 370 was IBM's third attempt to offer Unix-like functionality for their mainframe line, specifically the System / 370 ( the prior versions were a TSS / 370 based Unix system developed jointly with AT & T c. 1980, and VM / IX a VM / 370 based system developed jointly with Interactive Systems Corporation c. 1984 ).

AIX / 370 was released in 1990 with functional equivalence to System V Release 2 and 4. 3BSD as well as IBM enhancements.

With the introduction of the ESA / 390 architecture, AIX / 370 was replaced by AIX / ESA in 1991, which was based on OSF / 1, and also ran on the System / 390 platform.

" Great effort was made during development of the AS / 400 to enable programs written for the System / 34 and System / 36 to be moved to the AS / 400.

The AS / 400 added source compatibility with the System / 36 combining the two primary computers manufactured by the IBM Rochester plant.

The University of Wisconsin System was created on October 11, 1971, by Chapter 100, Laws of 1971, which combined the former Chapter 36 ( former University of Wisconsin ) and Chapter 37 ( former Wisconsin State Universities ) to create a new Chapter 36 ( University of Wisconsin System ) of the Wisconsin Statutes.

Richburg was served ( 1881 – 1890 and c. 1906-1946 ) by the Pittsburg, Shawmut & Northern Railroad ( PS & N ) and predecessors, and ( 1881 – 1885 ) by the Bradford, Eldred & Cuba Railroad System ( BE & C ) The early PS & N predecessors and the BE & C were 36 " narrow-gauge railroads while the PS & N was a standard-gauge railroad.

The early IBM System / 36 and IBM System / 38 series customers were a key target of the AS / 400, so OS / 400 ( and its descendants i5 / OS and IBM i ), have built-in subsystems that provide backward compatibility with these earlier IBM general business systems.

Development began with the System / 34 and / 36 minicomputers, focusing from the mid-1980s on the System / 38, then switching to the AS / 400 platform when it became available.

IBMers and enthusiasts think of the System / 34, System / 36, and System / 38 as midrange computers.

The implementation of Basic on the S / 34 is very close to that of the System / 36, the System / 23, the System / 38, and the AS / 400 ( iSeries.

) The implementation of RPG II on the System / 34 is similar to the RPG II used on the System / 36, the System / 370 and the System / 390, but not like the RPG III and subsequent RPG compilers for the iSeries.

The System / 34 Text Editor was a precursor to the IBM Office programs of the future System / 36 ( DisplayWrite, IDDU, Query, and so forth.

Volume 1 ( ( Af ) of the seventh edition of Dana's System Of Mineralogy was published in 1944 and Volume 2 ( ( Af ) in 1951 by John Wiley & Sons, Inc., New York, N. Y..

This fiery swath was actually only a belt of minor planets, almost like the asteroid belt in the original Solar System.

These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids.

Just under five hours later, on the CSM's 65th orbit around the Moon, its Service Propulsion System main engine was reignited to propel the craft on a trajectory that would return it to Earth.

AIX Version 1, introduced in 1986 for the IBM 6150 RT workstation, was based on UNIX System V Releases 1 and 2.

* A very High resolution monochrome video card with blitter and hardware text line and arc drawing capability, was designed for CAD applications, based on the NEC µPD7220 chip designed for graphic terminals, but was also used by some personal computers like the DEC Rainbow, and notably also for the Tulip System I.

In its prototype stage, the Atari 5200 was originally called the " Atari Video System X-Advanced Video Computer System ", and was codenamed " Pam " after a female employee at Atari Inc.

In January 1986, the 7800 was again released and would compete that year with the Nintendo Entertainment System and the Sega Master System.

Powering the system was an Atari SALLY 6502 ( Atari's slightly custom 6502, sometimes described as a " 6502C ") processor running at 1. 79 MHz, similar to the processor found in home computers ( Atari 8-bit, Apple II, Commodore 64 ) and other consoles ( Atari 5200 and Nintendo Entertainment System ).

Despite trailing the Nintendo Entertainment System in terms of number of units sold, the 7800 was a profitable enterprise for Atari Corp., benefiting largely from Atari ’ s name and the system's 2600 compatibility.

The most notable exception was the XG-1 lightgun, which came bundled with the Atari XE Game System.

Released on the XE Game System, an Atari 7800 version was started but not completed beyond a simple demo.

Atari Corp. then showed the Lynx to the press at the Summer 1989 CES as the " Portable Color Entertainment System ", which was changed to Lynx when actual consoles were distributed to resellers.

... was also a great and profound chess thinker second only to Steinitz, and his works – Die Blockade, My System and Chess Praxis – established his reputation as one of the father figures of modern chess.

In 2003, the SCO Group alleged that ( among other infractions ) IBM had misappropriated licensed source code from UNIX System V Release 4 for incorporation into AIX ; SCO subsequently withdrew IBM's license to develop and distribute AIX.

TWA canceled the project in 1970, acquiring one IBM System / 360 Model 75, two IBM System / 360 model 65s, and IBM's PARS software for its reservations system.

Mature versions of the Commodore, SWTPC, Atari and Apple home computer systems all featured a disk operating system ( actually called ' DOS ' in the case of the Commodore 64 ( CBM DOS ), Atari 800 ( Atari DOS ), and Apple II machines ( Apple DOS )), as did ( at the other end of the hardware spectrum, and much earlier ) IBM's System / 360, 370 and ( later ) 390 series of mainframes ( e. g., DOS / 360: Disk Operating System / 360 and DOS / VSE: Disk Operating System / Virtual Storage Extended ).

Only Larry Ellison's Oracle started from a different chain, based on IBM's papers on System R, and beat IBM to market when the first version was released in 1978.

Frederick Phillips Brooks, Jr. ( born April 19, 1931 ) is a software engineer and computer scientist, best known for managing the development of IBM's System / 360 family of computers and the OS / 360 software support package, then later writing candidly about the process in his seminal book The Mythical Man-Month.

Current mainframes in IBM's line of business computers are developments of the basic design of the IBM System / 360.

The second generation ( transistor-based ) products were a mainstay of IBM's business and IBM continued to make them for several years after the introduction of the System / 360.

That said, while IBM's zSeries can still run 24-bit System / 360 code, the 64-bit zSeries and System z9 CMOS servers have nothing physically in common with the older systems.

For example, in the 4th quarter of 2009, IBM's System z hardware revenues decreased by 27 % year over year.

The name stands for " Operating System / 2 ," because it was introduced as part of the same generation change release as IBM's " Personal System / 2 ( PS / 2 )" line of second-generation personal computers.

* IBM RPG, a native programming language for IBM's System i servers

The Model 67 introduced a virtual memory architecture which was used by MTS, CP-67, and TSS / 360, but not by IBM's mainline System / 360 operating systems.

In IBM's operating systems for System / 370 and successor systems, the term is " fixed ", and pages may be long-term fixed, or may be short-term fixed.

* Multiprogramming with a Fixed number of Tasks, an option of the OS / 360 operating system that was available for IBM's System / 360 mainframe

The IBM System i is IBM's previous generation of midrange computer systems for IBM i users, and was subsequently replaced by the IBM Power Systems in April 2008.

As part of IBM's Systems branding initiative in 2006, it was again renamed to System i. The codename of the AS / 400 project was " Silver Lake ", named for the lake in downtown Rochester, Minnesota, where development of the system took place.

The confusion that resulted from IBM offering three overlapping product lines that weren't compatible with each other along with the sluggish performance of System / 38 significantly impacted IBM's sales.

LPAR ( Logical PARtitioning ), a feature introduced from IBM's mainframe computers, facilitates running multiple operating systems simultaneously on one IBM System i unit.