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Movements, leaders, victories and the continuing fight for equality.
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Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
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Moments that changed communities, movements, institutions and the nation.
In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
 | |
 2.5 GB ST1 Drive | |
| Media type | Hard disk drive |
|---|---|
| Encoding | RLL |
| Capacity | 2.5 - 12 GB |
| Developed by | Seagate Technology |
| Manufactured by | |
| Dimensions | 42.0 mm × 36.0 mm × 5.0 mm |
| Usage | Portable devices |
The Seagate ST1 is a miniature 1-inch hard drive with the CompactFlash Type II form factor, much like IBM's Microdrive. Unlike Sony and Hitachi and allegedly GS Magicstor branded drives, Seagate developed their technology from scratch.
As of 2005 most 5 gigabyte MP3 players in production had ST1 drives embedded in them.
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Notable improvements over IBM's design include:
All ST1 drives have "For Embedded Application Only" printed on the back of them, which has led some people to think that the CF mode required for use in digital cameras is disabled. This is in fact not true and was most likely put there to remind the user that the drive was not designed for continuous use in a desktop computer. [citation needed]
ST1 Series:[1]
ST1.2 Series:[2]
ST1.3 Series:[3]
The CF, DE, DEG, FX suffixes are for CompactFlash+ Type II, ZIF, (zero insertion force) IDE interface, Flex (IDE interface) interfaces respectively. DEG models also include an additional free-fall sensor for robust drop performance.
Unlike most hard disk drives produced at that time, ST1.2 drives have physical sector size of 1024 bytes.[4]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
The Seagate ST1 is a miniature 1-inch hard drive with the CompactFlash Type II form factor, much like IBM's Microdrive. Unlike Sony and Hitachi and allegedly GS Magicstor branded drives, Seagate developed their technology from scratch. As of 2005 most 5 gigabyte MP3 players in production had ST1 drives embedded in them. Notable improvements over IBM's design include: 2-megabyte data buffer A mechanism to hold the read-write head in place when the drive is not in use Some level of internal diagnostics All ST1 drives have "For Embedded Application Only" printed on the back of them, which has led some people to think that the CF mode required for use in digital cameras is disabled. This is in fact not true and was most likely put there to remind the user that the drive was not designed for continuous use in a desktop computer.
At least 218 companies have manufactured hard disk drives (HDDs) since 1956. Most of that industry has vanished through bankruptcy or mergers and acquisitions. None of the first several entrants (including IBM, who invented the HDD) continue in the industry today. Only three manufacturers have survived—Seagate, Toshiba and Western Digital (WD)—all of which grew at least in part through mergers and acquisitions.
The Microdrive was a miniature, one-inch hard disk drive released in 1998 by IBM. The idea was originally created in 1992 by Timothy J. Riley and Thomas R. Albrecht at the Almaden Research Center in San Jose. A team of engineers and designers at IBM's Fujisawa, Japan facility helped make the creation of the drive possible. Due to the failure of the Kittyhawk, a 1.3-inch hard disk drive also created in 1992 by Hewlett Packard, initial support for it was reluctant. Despite that, development persisted. The Microdrive caused the creation of and used the CompactFlash Type II format which became the de facto standard for devices utilizing the technology at the time. Because of this, and its advantages over flash technology, the Microdrive ended up being a success. Although a niche for a short time, the Microdrive market later became very competitive. Many companies began producing miniature hard disk drives also referred to as Microdrives. Some offered more storage capacity or were even smaller in physical size to the original Microdrive. This did not last long however. By the mid to late 2000s, miniature hard disk drives were being viewed as obsolete with flash media such as CompactFlash, SD, and USB flash surpassing them in speed, capacity, durability, and pricing.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →The Greenwood District.