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Re: 30 Years Of Windows PC's

Lewis

Member
30 Years of PC Operating Systems

It started with a monochrome command-line prompt and has grown into a multicolored, multitasking, multimedia masterpiece. From DOS 1.0 to Windows 8, we take you along for the journey.

This article is in 5 consecutive post here at 123 Christian Forums.net

Contents
  • 30 Years of PC Operating Systems
  • From 1975 to 2012
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A capital letter, a colon, and an arrow. That's all you saw when you fired up the first PC's operating system, DOS 1.0. From those humble beginnings, comes the explosion of colors and sound possible with today's Windows 7 PCs and the multi-touch gesture input promised for its successor, Windows 8. So much of what we now take for granted was still a glimmer in operating system engineers' eyes 30 years ago when the PC first entered the scene.


It was on August 12, 1981. Ronald Reagan was in the White House. The Soviet Union was still intact. Prince Charles and Princess Diana were on their honeymoon. But on that day, in the Waldorf Astoria ballroom in New York City, Don Estridge changed the world by announcing the spanking new IBM PC at a cost of $1,565. There were no windows. No mice. No Start Menu. The word "icon" only referred to religious paintings and webs were the sole province of spiders and chatting was only done face-to-face or over the telephone. The IBM PC was basically a typewriter with a monochrome character-based screen. It may not have looked like much, then, but it was the start of a worldwide cultural change.
Enter Microsoft
IBM couldn't bring the PC to life all on its own. As Bill Gates explained in an interview in the first issue of PC Magazine: "The typical project design time for a large company like IBM...is a little over four years.... in the personal computer industry...you really couldn't be competitive if you speced out your project in 1976 and sold it in 1980." The business-targeted Apple III had just come out, though it failed to gain a stronghold in that market. So IBM took an uncharacteristic course: they'd subcontract work on the new machine's operating system and make use of other manufacturer's parts, most notably Intel's microprocessors.
This use of third-party operating system software from Microsoft, along with third-party hardware components, was the key to the PC's later worldwide domination in the personal computer market: It allowed competing vendors to license the operating system from Microsoft and build PCs of their own, creating a profusion of choice and a massive PC ecosystem of hardware and software. Though several planets had to come into alignment to make the PC the success that it was, the choice of Microsoft for its operating system was critical. Many may not realize that you could buy the early PC with two other (far more expensive) OS choices, but those soon became irrelevant.
DOS didn't just appear out of nowhere. Digital Research's Gary Kildall had developed an operating system for microcomputers called CP/M in the early 70s. Not only did several early personal computers run that OS—most notably from Altair, Osborne, and Kaypro, but the first PC OS, DOS borrowed from it (resulting in litigations from Digital Research). Far more software titles ran on CP/M than on DOS, too. Digital Research failed to take over the PC's interface yet a second time years later, with its GEM graphical windowing system, which Windows subsequently buried.
Why Microsoft? Why DOS?
By now it's become computing legend: business technology giant IBM strikes a deal with Bill Gates from startup Micro-soft (the hyphen was later dropped) for the operating system that would run its new entry in the personal computer market, the IBM PC. IBM had originally gone to Kildall and Digital Research, but that company wouldn't countenance IBM's licensing terms and non-disclosure agreement—IBM insisted on absolute secrecy for the project. Gate explains it in a 2001 interview with then Editor-in-Chief Michael Miller: "The IBM guys flew down there and they couldn't get the non-disclosure signed. Because IBM non-disclosures are pretty unreasonable. It's very one-sided. And we just went ahead and signed the thing."
Gates and Co. already had some OS experience writing software for microcomputers. Back in 1975, Gates and Microsoft co-founder Paul Allen had created a version of the BASIC programming language for the popular earlier hobbyist microcomputer, the MITS Altair 8800, followed by more languages for more microcomputers. So the small, nimble company seemed a good candidate to IBM.
The infant software company, however, had no 16-bit operating system, which the PC would require. Allen knew someone who had built one—Tim Paterson, of Tukwila, Washington's Seattle Computer Products. Paterson's 16-bit OS was a CP/M variation called QDOS (Quick and Dirty Operating System), for which Microsoft originally paid $25,000, followed by another $50,000. QDOS became MS-DOS 1.0. (In Microsoft's OS, the D in DOS would stand for Disk, however.) Considering the hundreds of billions Microsoft would become worth, this might seem like a raw deal. But Paterson later became a Microsoft employee, and no hard feelings ensued.
The Software
In addition to DOS, the first PC came with Microsoft BASIC, for the code-literate. But the PC's original press release listed several more choices: "Program packages available for the IBM Personal Computer cover popular business and home applications. For example, EasyWriter will store letters, manuscripts and other text for editing or rapid reproduction on the printer...VisiCalc is available for applications ranging from financial analysis to budget planning. Microsoft Adventure brings players into a fantasy world of caves and treasures."
It was a success. According to IBM, "By the end of 1982, qualified retail outfits were signing on to sell the new machine at the rate of one-a-day as sales actually hit a system-a-minute every business day. Newsweek magazine called it "IBM's roaring success," and the New York Times said, "The speed and extent to which IBM has been successful has surprised many people, including IBM itself." Ads featuring Charlie Chaplin did their part to humanize the product, and Time magazine chose the "personal computer" as its 1982 Man of the Year.
So that's how it all started, now let's turn to our visual history of the PC's operating system, from DOS 1.0 through the birthing pains and later dominance of Windows, all the way to the future in Windows 8.
 
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Re: 30 Years Of PC's

1975: The Microsoft PredecessorBill Machrone: "[Ziff publication] Popular Electronics...carried the story of the first commercial microprocessor-based computer, the MITS Altair, in 1975. That story inspired me, as it did a young fellow named Bill Gates."
1981: The First PC
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The first version of DOS was a single-tasking, single-user OS. It could run "batch files"—files consisting of lines of text that would execute commands, as well as offering an API (application programming interface) for other programs to access the hardware. From the start, DOS used letters to name storage devices; A:, B:, and so on, a practice we still see in Windows Explorer.
But the original DOS came way before the concept of "friendly" computers and programs arrived. It was strictly for techies who were comfortable with a command line. Forget about multitasking, networking, Web browsing, mouse input, backup. The only sound it was capable of was a single beep, and onscreen photos and video were still science fiction.
DOS 1.0 contained about 4000 lines of code: Compare that with Windows XP's approximately 45 million lines of code (numbers for later OSes haven't been made public). DOS went through six versions and several point versions, each adding new commands, capabilities, and hardware support. For example, DOS 1.1 adds support for double-sided floppy disks.

1983—1984: DOS 2 and 3
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There were other windowing systems for the PC before Windows took off: For a while during the late 1980s, PC Magazine was littered with ads for something called GEM—Graphical Environment Manager, from Digital Research. That, along with DESQview—and Window itself—was a "DOS extenter," or graphical user interface (GUI) that controlled DOS running underneath. In September 1989, PC Magazine's Jim Seymour wrote, "the GUI is still far from being universally accepted by users, still far from being a real marketplace standard. But somewhere in there is the core of a great idea...sooner or later, most PC users will work in graphical environments."
 
Re: 30 Years Of PC's

1985: Windows 1.0
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Windows 2.0, which came out in 1987, solved the overlapping window problem, offered more color options, but was still too DOS-like. Another thing holding it back was that PCs of its time weren't powerful enough to run a graphical interface comfortably. Version 2.0 still also suffered from DOS's 1MB memory limit.

1988: DOS 4
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DOS 5.0, coming in 1991 added a full-screen editor, undelete, unformat, and task swapping. The PC Magazine table-of-contents blurb on Ray Duncan's review summed up this version: "MS DOS 5.0 Upgrade Kit can change your life, with more program memory, on-line help, task swapping, visual editor, undelete, mirror, and more." The review concludes that its features, reasonable price ($99.95), and improved installer "are sure to entice a high proportion of the 50 million users of DOS 2, 3, and 4."
Two years later, with Windows already starting to take hold, DOS 6 came out, with DoubleSpace disk compression its keynote feature. Versions with higher numbers, like DOS 7 and 8, only exist inside of Windows as a command line interface. In fact, even in Windows 7, if you run "Command" at the start button's search box, the black window that appears says "Windows DOS."

1990: Windows 3.0
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With Windows 3.0, things started cooking. It introduced the icon-sporting Program Manager and File Manager. Though it still booted from DOS, it finally broke the 1MB barrier, used the 16-color VGA graphics (compared with previous versions' 8 colors), and could multitask older DOS programs. Maybe most importantly, it was the first version of Windows to include the Solitaire card game. Its use of the CPU's Protected Mode enabled apps to use more memory and safely multitask.
 
Re: 30 Years Of PC's

1992: Windows 3.1
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While most servers time still ran forms of Unix, Windows servers grew common after Microsoft released Windows NT in 1993. That OS was first released as version 3.1, to match the popular current consumer version of Windows. NT was designed as a processor-independent, multiprocessing, multiuser OS that could replace Unix. Versions could run on MIPS, Alpha, and PowerPC chips. It was the first Windows OS to take full advantage of 32-bit computing.

1995: Windows 95
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Windows 98 appeared in the late spring of the year it's named for. It was the first truly Internet-aware Microsoft OS, and came with the Internet Explorer Web browser, then at version 4. It brought support for USB interface. But it also came with Microsoft Chat, FrontPage Express Web site building software, a personal Web server, and Outlook Express for email. It even had Active Desktop, which allowed internet-connected apps to update on the desktop. Windows 98 introduced the Windows Driver Model that would later be required by Windows XP.

2000: Windows 2000
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Targeting businesses, Windows 2000 was based on Windows NT. It introduced Active Directory, which became a standard among business installations. Though it was touted as "a standard in stability," tech journalist Mary Jo Foley writing in Sm@rt Reseller disclosed an internal Microsoft memo pointing out over 63,000 potential defects. Windows 2000 brought several features of Windows 98 to the business OS, including Windows Desktop Update, Internet Explorer 5, Outlook Express, NetMeeting, FAT32 support, Windows Driver Model, Internet Connection Sharing, and Windows Media Player.
 
2000: Windows Me
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After ten years Windows XP (the XP is for "eXPerience"), released in 2001, is still the most widely used operating system in the world. It brought Microsoft's consumer and business operating systems under the same umbrella with a shared code base and came in two main flavors: Windows XP Home Edition and Windows XP Professional. There was also a Tablet Edition, which failed to grab the world by storm the way the iPad has, despite Microsoft's early lead. XP added themes and visual improvements over Windows 98, as well as fast user switching, an Internet firewall, and improved graphics and connectivity. But most importantly, it represented a new level of stability for Windows.

2007: Windows VistaJohn Dvorak lists Vista's "11 pillars of failure," as "market confusion, code size, missing components, laptop battery-life drain, HHD fiasco, bogus Vista-capable stickers, missing drivers, conflicting advice, XP mania, mediocre rollout, and performance." He does, however, acknowledge that there was one group that "happily uses Vista, with few concerns or complaints. In fact, many of them are baffled by all the grumbling."

2009: Window 7
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With this operating system, Microsoft plans to bring Windows to non-Intel-based machines, in an attempt to catch up with Apple's massive lead in the tablet market. As with Apple's latest desktop OS, OS X Lion, which borrows heavily from the iPad's interface, Windows 8 takes a page from its maker's mobile offering, in Microsoft's case, Windows Phone 7. Windows 8 will make use of the phone OS's "Metro" user interface, which features live tiles that both display updated information and give access to programs. The OS will still run standard Windows apps like Excel, but puts emphasis on a new class of lightweight Web-style apps. As with Apple's tablet and new OS version, Windows 8 will make heavy use of touch interface, and though this means it's tailored for tablet, it will also run on existing desktops.
PC Magazine
 
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