When Compaq introduced the first PC based on Intel's new 80386 microprocessor, the Compaq Deskpro 386, in 1986, it marked the first CPU change to the PC platform that was not initiated by IBM.

When the IBM PC was introduced, IBM sold its operating system as an unbundled ( but necessary ) option.

When the PC was introduced in 1981, it was designated as the IBM 5150, putting it in the " 5100 " series, though its architecture was not directly descended from the IBM 5100.

When one of these keys is pressed, it will cause its control unit, historically, an 3174 or IBM 3274 but later the mainframe integrated communications adapter, to generate an I / O interrupt and present a special code identifying which key was pressed.

When IBM announced its Professional Workstation computer in 1986, they noted the lack of third-party programs written for it at the time, signaling those developers to start preparing.

When IBM used the 80286 in their IBM Personal Computer AT, they solved this problem by including a software-settable gate to enable or disable ( force to zero ) the A20 address line, between the A20 pin on the 80286 and the system bus ; this is known as Gate-A20 ( the A20 gate ), and it is still implemented in PC chipsets to this day.

When Microsoft entered an agreement with IBM to develop OS / 2, it lost interest in promoting Xenix.

When the IBM Personal Computer was being developed, DR was asked to supply a version of CP / M written for the Intel 8086 microprocessor as the standard operating system for the PC, which used the code-compatible Intel 8088 chip.

When the IBM PC arrived in late 1981, it came with PC-DOS, which was developed from 86-DOS, which Microsoft acquired for this purpose.

When the LOAD button on the IBM 1402 Card Read-Punch was pressed, a card was read into memory locations 001-080, a word mark was set in location 001, the word marks in locations 002-080 were cleared, and execution started with the instruction at location 001.

When IBM released its first relational database product, they wanted to have a commercial-quality sublanguage as well, so it overhauled SEQUEL and renamed the basically new language ( System Query Language ) SQL to differentiate it from SEQUEL.

When Informix Corporation acquired Illustra and made their database engine an object-SQL DBMS by introducing their Universal Server, both Oracle and IBM followed suit by changing their database engines to be capable of object-relational extensions.

When IBM introduced its System / 360 family of computers in the mid-1960s, it did not provide a solution for this limitation and within IBM there were conflicting views about the importance of and need to support time-sharing.

When IBM contacted other companies to obtain components for the IBM PC, the as-yet unreleased CP / M-86 was its first choice for an operating system because CP / M had the most applications at the time.

When the German astronaut team was merged into a European Space Agency, he did not transfer, but resigned to work at IBM Germany.

When Digital Research founder Gary Kildall examined PC DOS and found that it duplicated CP / M's programming interface, he wanted to sue IBM, which at the time claimed that PC DOS was its own product.

When IBM implemented the parallel interface on the IBM PC, they used the DB25F connector at the PC-end of the interface, creating the now familiar parallel cable with a DB25M at one end and a 36 pin micro ribbon connector at the other.

: When IBM bought Sequent, ... it lacked the size and resources to compete with Sun and Hewlett-Packard Co. in the Unix server market ....

When I try to work out my reasons for feeling that this passage is of critical significance, I come up with the following ideas, which I shall express very briefly here and revert to in a later essay.

When I informed her that I didn't, she said she would borrow her brother's and bring it to me later that evening.

When the parents emerged from the bedroom a few minutes later, the maid greeted them quietly.

When such a reference is found, an actual address is assigned and the availability table is changed so that the assigned index word or switch is no longer available for later assignment.

When the Negroes landed at Boston a month later they were, of course, no longer slaves.

When the great reform of the 11th century had put an end to the direct jurisdiction of the lay abbots, the honorary title of abbot continued to be held by certain of the great feudal families, as late as the 13th century and later, the actual head of the community retaining that of dean.

When Charles left Germany a few weeks later, Albert renewed his depredations in Franconia.

When Absalon retired from military service in 1184 at the age of fifty-seven, he resigned the command of fleets and armies to younger men, like Duke Valdemar, the later king Valdemar II.

" When I woke up just after dawn on September 28, 1928, I certainly didn't plan to revolutionise all medicine by discovering the world's first antibiotic, or bacteria killer ," Fleming would later say, " But I suppose that was exactly what I did.

When White eventually returned three years later, Virginia and the other colonists were gone.

When a continuum radiation source is used for AAS, it is necessary to use a high-resolution monochromator, as will be discussed later.

When Marinchip Software Partners ( later known as Autodesk ) formed, the founders decided to re-code Interact in C and PL / 1.

When asked later why he had stopped writing about Greek poetry, he responded, " I found that I could not attain to excellence in both.

Beethoven's friend Anton Schindler, later said: " When he started working on the fourth movement the struggle began as never before.

When a pitching change occurs, the new pitcher is said to " inherit " any runners that are on base at the time, and if they later score, those runs are charged ( earned or unearned ) to the prior pitcher.

When Winston Smith is later arrested, O ' Brien, his interrogator, again describes Big Brother as a figure who will never die.

When he had returned to Paramount a few months later, " Matchbox Blues " had already become such a hit that Paramount re-recorded and released two new versions, under producer Arthur Laibly.

When asked later why he did it, Corbett answered that " Providence directed me ".

When Galileo later complained of rumors to the effect that he had been forced to abjure and do penance, Bellarmine wrote out a certificate denying the rumors, stating that Galileo had merely been notified of the decree and informed that, as a consequence of it, the Copernican doctrine could not be " defended or held ".

When Macbeth returns to the witches later in the play, they show him an apparation of the murdered Banquo, along with eight of his descendants.

When the first meeting of the Fourth Duma was convened in late 1912, only one out of six Bolshevik deputies, Matvei Muranov, ( another one, Roman Malinovsky, was later exposed as an Okhrana secret police agent ) voted to break away from the Menshevik faction within the Duma on 15 December 1912.

When Riviera left Stiff in late 1977 Bubbles joined him at his new label Radar Records and later at Riviera's F-Beat Records.

When the Communist Party of China took over power, previous schools of thought, excepting notably Legalism, were denounced as backward, and later even purged during the Cultural Revolution.

When he returned to the narrative later in life, Claudius skipped over the wars of the second triumvirate altogether.

When he later pursued his interest in China, Linebarger became a close confidant of Chiang Kai-shek.