810 and 815 When the 8-bit series was first announced in 1978 it was often shown with two
floppy disk drive systems, the 810 and 815. The 810 was an entry-level model, supporting only single-density
FM encoding at 90 kB total storage. The 815 used two double-density
MFM encoding drives in a single large housing, each drive offering 180 kB of storage. For reasons unknown, the 815 was produced only in small numbers starting in 1980 and then abandoned, leaving the platform only with the 810 which were described by
InfoWorld as "noisy, slow and inefficient."
New design In April 1982, Atari began the process of designing an improved version of the 8-bit series, which were to be known as the 1000 and 1000X. Among the changes was a new
design language from Regan Cheng using off-white and black plastics with brushed metal overlay on switches and other fixtures. Along with the machines, a new line of peripherals would be released with matching styling, numbered in the 1000's in the same fashion that earlier devices had been numbered in the 400 and 800 series. Ultimately Atari introduced only one new computer model, named
1200XL. When it was introduced at the Winter
Consumer Electronics Show in December 1982, it was shown with the new
Atari 1010 cassette deck, and the
1020 plotter and 1025 printers. There was no sign of a new floppy drive, and one reviewer noted that when he went looking all he could find was the "old model 810 clunkers", speculating that "we will be seeing a new drive from Atari within the next half year". This prediction came true; when the 1200XL finally reached the market in June 1983, it was accompanied by the new Atari 1050. The disk mechanism moved from the original Tandon used in the 810 to the new "thinline" design that was slightly shorter and led to a more compact case. It offered the new "enhanced" or "dual density" option that improved formatted capacity to 130 kB, and replaced the 810 in the market. To take advantage of the new enhanced density mode, a new version of
Atari DOS was needed, 3.0. This was not available at launch, and the early examples shipped with DOS 2.0S instead, meaning they could not take advantage of the new features. The required DOS 3.0 eventually shipped several months later. However, it used an entirely new format using 1 kB "blocks" rather than the standard 128 byte "sectors", meaning that disks that were formatted with DOS 3 could not be read or written on other Atari machines unless they also updated to 3.0. The move to blocks meant that the minimum file size was also 1 kB, and in the era of small files this resulted in significant wasted space. This led most users to shun 3.0, and reviewers to state flatly that "This product should be avoided. It's a shame so many newer Atari users have been saddled with it." By this time, increasing sales of the 400 and 800 and the failure of a new drive to appear from Atari led to a thriving market for third-party drives and alternative DOSes, many of which provided true double-density support using the format originally introduced on the 815. An August 1984 review in
Antic compared the 1050 with four 3rd party drives and the 810; the 1050 was beaten by all but the 810 in both capacity and speed. The 1050 was described as "a no-frills drive", especially compared to the Rana 1000 and
Indus GT, which offered double-density, various high-speed modes, front-panel displays, and many other features. The lack of double density support was described as "a mystery". The problems with DOS 3.0 were finally addressed in 1984 with the introduction of the "long awaited" DOS 2.5. This returned to the 2.0-style formatting even for enhanced density, allowing DOS 2 and 2.5 users to swap disks as long as they were in single-density format. By this time, most of the 3rd party DOSes had already added support for enhanced mode.
Modifications As was the case for the 810 before it, the 1050 was the subject of a number of 3rd party upgrades that improved performance in various ways. Notable among these was the ICD Doubler, which added true double-density support allowing it to store 180 kB of data. This also added a high-speed mode that had been originally introduced in the
Happy 810 modifications for the 810, increasing transfers from 19.2 kbps to 52 kbps. Happy also updated their original system for the 1050, becoming the Happy 1050, and like the Doubler it provided double-density support and its Warp Speed system.
SpartaDOS, also from ICD, supported both the Doubler and Happy systems, offering much better performance from such systems. Both were also supported by most other 3rd party DOSes on the platform.
Price war The new XL series machines were launched into the middle of a
price war between
Commodore International and
Texas Instruments, which quickly drove everything but the
Commodore 64 and
Apple II from the market. Sales of the 8-bits plummeted. At the same time, the
videogame crash of 1983 was in full-swing. By the start of 1984, Atari was losing millions of dollars a day, and their owners,
Warner Communications, became desperate to sell off the "loss-plagued" company. Atari was purchased by
Jack Tramiel, formerly of Commodore, in June 1984. The new management arrived to find warehouses filled with XL systems and peripherals. They put the existing stock on the market for fire-sale prices while they developed new very-low-cost versions of the machines. These emerged as the XE series, which were presented at the January 1985 Consumer Electronics Show, along with a restyled 1050 called the XF521. They continued to show the new drive through 1985 and 1986, but it disappeared without ever shipping. By 1986 the new
Atari ST series was doing well in the market and interest in the 8-bit platforms waned. An even further upgraded drive, the double-sided, double-density
XF551 was being tested through this period, but the drive was not released. It was not until 1987, six months after 1050s had run out, that the XF551 finally shipped, and only after the threat of a lawsuit from
Nintendo forced their hand. ==Design==