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SparQ Drive
The SparQ drive is a removable-disk hard drive made by SyQuest Technology. It was introduced in 1997, available as an internal or external version. The internal version utilized an IDE interface, and the external version used a parallel port. The disk can store 1 GB of data. As a removable-disk hard drive, it contains a solid hard disk platter on which the data is stored. When the SparQ drive was launched, it was relatively cheap. Compared to the Zip drive whose 100 MB disk could cost US$22, a 1 GB SparQ disk could cost US$39 — slightly less than twice the cost for ten times the storage capacity. Quality issues A few months after the launch, users began to complain that the drives had serious quality issues, causing them to break. The damage to its public image and warranty obligations of SyQuest were major factors behind the company's bankruptcy. After its bankruptcy, SyQuest retained its rights to produce and sell the drive, which it continued to sell online directly to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Drive
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data when powered off. Modern HDDs are typically in the form of a small rectangular box. Introduced by IBM in 1956, HDDs were the dominant secondary storage device for general-purpose computers beginning in the early 1960s. HDDs maintained this position into the modern era of servers and personal computers, though personal computing devices produced in large volume, like cell phones and tablets, rely on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EZ 135 Drive
The EZ 135 Drive is a 3.5" removable platter hard disk drive. It was introduced by SyQuest Technology in 1995. It had a maximum capacity of 135 MB per disk. A successor drive, known as the SyQuest EZFlyer, was released in 1996. It was backwards compatible with the EZ 135 disks, and could utilize a higher capacity 230 MB disk. Specifications * Capacity: 135 MB * Average seek time: 13.5 ms * Burst transfer rate: 4 MB/s * Buffer size: 64K * Mechanism rated for 200,000 hours Interfaces The EZ 135 drive was available with several interfaces. The external drive was available with parallel or SCSI interfaces; the internal drive was available with IDE or SCSI interfaces. Pricing At introduction, the EZ 135 Drive had the following prices (in US dollars): * 135 MB cartridge: $20.00 * EZ 135 Drive – external SCSI: $240.00 * EZ 135 Drive – internal IDE: $200.00 Sales The EZ 135 Drive was designed to be a competitor to the Iomega Zip drive and LS-120 SuperFloppy. The origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Click Of Death
Click of death is a term that had become common in the late 1990s referring to the clicking sound in disk storage systems that signals a disk drive has failed, often catastrophically. The clicking sound itself arises from the unexpected movement of the disk's read/write actuator. At startup, and during use, the disk head must move correctly and be able to confirm that it is correctly tracking data on the disk. If the head fails to move as expected or upon moving cannot track the disk surface correctly, the disk controller may attempt to recover from the error by returning the head to its home position and then retrying, at times causing an audible "click". In some devices, the process automatically retries, causing a repeated or rhythmic clicking sound, sometimes accompanied by the whirring sound of the drive plate spinning. Origin of the term The phrase "click of death" originated to describe a failure mode of the Iomega ZIP drives, appearing in print as early as January 30, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LS-120 Drive
The SuperDisk LS-120 is a high-speed, high-capacity alternative to the 90 mm (3.5 in), 1.44 MB floppy disk. The SuperDisk hardware was created by 3M's storage products group Imation in 1997, with manufacturing chiefly by Matsushita. The SuperDisk had little success in North America; with Compaq, Gateway and Dell being three of only a few OEMs who supported it. It was more successful in Asia and Australia, where the second-generation SuperDisk LS-240 drive and disk was released. SuperDisk worldwide ceased manufacturing in 2003. History The design of the SuperDisk system came from an early 1990s project at Iomega. It is one of the last examples of floptical technology, where lasers are used to guide a magnetic head which is much smaller than those used in traditional floppy disk drives. Iomega orphaned the project around the time they decided to release the Zip drive in 1994. The idea eventually ended up at 3M, where the concept was refined and the design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ditto Drive
The Ditto drive series was a proprietary magnetic tape data storage system released by Iomega during the 1990s. It was marketed as a backup device for personal computers. They were released in several capacities ranging from the original Ditto 250 drive (250MB compressed capacity per cartridge) to the DittoMAX drive, a compatible format with compressed capacities up to 10GB per cartridge. This was accomplished by increasing the physical size of the cartridge (making it longer). Some versions of the drive were also able to read Travan-type tapes. Technical aspects Ditto internal drives were connected through the floppy drive channel and used MFM encoding to store data (the same method as on older floppy drives). An ISA accelerator card called the ''Ditto Dash'', providing higher speed than a stock floppy controller, was also available. Ditto external drives were connected to the parallel port and offered a print-through port which allowed a printer to operate while daisy-c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernoulli Box
The Bernoulli Box (or simply Bernoulli, named after Daniel Bernoulli) is a high-capacity (for the time) removable floppy disk storage system that is Iomega's first widely known product. It was released in 1982. Overview The drive spins a PET film floppy disk at about 3000 rpm, 1 μm over a read-write head, using Bernoulli's principle to pull the flexible disk towards the head as long as the disk is spinning. In theory this makes the Bernoulli drive more reliable than a contemporary hard disk drive, since a head crash is impossible. The original Bernoulli disks came in capacities of 5, 10, and 20 MB. They are roughly 21 cm by 27.5 cm, similar to the size of a sheet of A4 paper. The most popular system was the Bernoulli Box II, whose disk cases are 13.6 cm wide, 14 cm long and 0.9 cm thick, somewhat resembling a 3 -inch standard floppy disk but in 5 -inch form factor. Bernoulli Box II disks came in the following capacities: 20 MB, 35&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iomega REV
REV is a removable hard disk storage system from Iomega. The small removable disks store 35, 70, or 120 gigabytes (GB) and are hard-drive technology. Like a standard hard drive, the REV system uses a flying head to read and write data to a spinning platter. The removable disks contained the platter, spindle, and motor, while the drive heads and drive controller are contained within the REV drive. The drives allow for data transfer rates of about 25 megabytes (MB) per second. The REV was available as an external desktop model with FireWire, SCSI or USB 2.0 interfaces, an internal model with SCSI, ATAPI, or SATA interfaces, or an external server model which features a cartridge autoloader and SCSI interface. Iomega also offered a 320 GB network-attached storage appliance which features a built-in REV. The drives are compatible with Macintosh, Windows, and Linux operating systems, although some only with particular models or interfaces. This product, especially the server model, was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orb Drive
The Orb Drive is a 3.5-inch removable hard-disk drive introduced by Castlewood Systems in 1999. Its original capacity was 2.2 GB. A later version of the drive was introduced in 2001 with a capacity of 5.7 GB. Manufacturing of this product ceased in 2004. Castlewood Systems The manufacturer of the Orb Drive was Castlewood Systems. It was formed by several former employees of SyQuest Technologies. Shortly after the Orb Drive was released, SyQuest brought a lawsuit against Castlewood. Castlewood filed for Chapter 7 bankruptcy and ceased operation in 2004. Computer History Museum, November 1, 2006 Interfaces The Orb Drive was available in internal and external versions. The internal version was available with[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Failure Mode
Failure causes are defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure. Where failure depends on the user of the product or process, then human error must be considered. Component failure / failure modes A part failure mode is the way in which a component failed "functionally" on the component level. Often a part has only a few failure modes. For example, a relay may fail to open or close contacts on demand. The failure mechanism that caused this can be of many different kinds, and often multiple factors play a role at the same time. They include corrosion, welding of contacts due to an abnormal electric current, return spring fatigue failure, unintended command failure, dust accumulation and blockage of mechanism, etc. Seldom only one cause (hazard) can be identified that creates system failures. The real root causes can in theory in most cases be traced back to some kind of huma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SyQuest Technology
SyQuest Technology, Inc. () was an early entrant into the hard disk drive market for personal computers. The company was founded on January 27, 1982 by Syed Iftikar who had been a founder of Seagate, along with Ben Alaimo, Bill Krajewski, Anil Nigam and George Toldi. Its earliest products were the SQ306R, a 5 MB 3.9" (100 mm) cartridge disk drive and associated Q-Pak cartridge for IBM XT compatibles. Subsequently a non-removable medium version was announced, the SQ306F. For many years, SyQuest was the most popular means of transferring large desktop publisher documents such as advertisements to professional printers. SyQuest marketed its products as able to give personal computer users "endless" hard drive space for data-intensive applications like desktop publishing, Internet information management, pre-press, multimedia, audio, video, digital photography, fast backup, data exchange and archiving, along with confidential data security and easy portability for the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum PC
''Maximum PC'', formerly known as ''boot'', is an American magazine and website published by Future US. It focuses on cutting-edge PC hardware, with an emphasis on product reviews, step-by-step tutorials, and in-depth technical briefs. Component coverage areas include CPUs, motherboards, core-logic chipsets, memory, videocards, mechanical hard drives, solid-state drives, optical drives, cases, component cooling, and anything else to do with recent tech news. Additional hardware coverage is directed at smartphones, tablet computers, cameras and other consumer electronic devices that interface with consumer PCs. Software coverage focuses on games, anti-virus suites, content-editing programs, and other consumer-level applications. Prior to September 1998, the magazine was called ''boot''. ''boot'' and sister magazine ''MacAddict'' (now ''Mac'', ''Life'') launched in September 1996, when Future US shut down ''CD-ROM Today''. In March 2016, Future US announced that the ''Maximum P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
