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Hardcard
Hardcard is the genericized trademark for a hard disk drive, disk controller, and host adapter on an expansion card for a personal computer. Typically a hard disk drive (HDD) installs into a drive bay; cables connect the drive to a host adapter and power source. If the personal computer lacks an available bus on a compatible host adapter, then one may have to install an adapter into an expansion slot. The Hardcard supplies its own host adapter, and doesn't require an empty drive bay. Plus Development, a subsidiary of Quantum Corporation, developed the first ISA Hardcard, and released it in October 1985. By June 1986, 28 of Plus Development's competitors were producing similar products. The term has been used generically to refer to any hard disk on a card. History Quantum Corporation formed the Plus Development subsidiary in 1983. Plus Development invested their efforts in developing a hard disk drive that the average computer owner could install easily without much technical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plus Development
Plus Development Corporation was a majority-owned subsidiary of Quantum Corporation. The company invented the Hardcard, a hard disk drive on an expansion card, which started a wave of companies producing similar products in the 1980s. History Quantum Corporation specialized in making sophisticated and expensive hard drives for minicomputers. Plus Development was formed in October, 1983, by a handful of Quantum employees, led by Stephen Berkley (President), Dave Brown (Engineering), and Joel Harrison (Architecture), based on a conversation over dinner between Nolan Bushnell and Quantum President James Patterson that Quantum needed to start building products for the end user market. Their goal was to provide a simplified upgrade path for the newly released IBM Personal Computer which did not come with a hard drive. The company was originally incorporated as BBH Corporation (using the initials for Berkley, Brown, and Harrison), but also used the name Bits in Space for fun. It later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Corporation
Quantum Corporation is a data storage, management, and protection company that provides technology to store, manage, archive, and protect video and unstructured data throughout the data life cycle. Their products are used by enterprises, media and entertainment companies, government agencies, data companies, and life science organizations. Quantum is headquartered in San Jose, California and has offices around the world. The company is dual-listed on the NASDAQ Global Market under the ticker symbol "QMCO", and on the Börse Frankfurt under the ticker symbol "QNT2". History Quantum was founded in 1980 as Quantum Corp. By 1984, it led the market for mid-capacity 5.25-inch drives. That year, a subsidiary was launched called Plus Development to focus on the development of hardcards. Plus Development became a successful designer of 3.5-inch drives with Matsushita Kotobuki Electronics (now Panasonic) as the contract manufacturer. By 1989, Quantum led the compact drive market. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandy 1000
The Tandy 1000 was the first in a series of IBM PC compatible home computers produced by the Tandy Corporation, sold through its Radio Shack and Radio Shack Computer Center stores. Introduced in 1984, the Tandy 1000 line was designed to offer affordable yet capable systems for home computing and education. Tandy-specific features, such as enhanced graphics, sound, and a built-in joystick port, made the computers particularly attractive for home use. The Tandy 1000 series remained in production until its discontinuation in 1993, coinciding with Tandy's exit from the PC market. Over its lifespan, the series included about a dozen models with various form factors, incorporating advancements in PC hardware technology and adopting more standardized components. Overview In December 1983, an executive with Tandy Corporation, maker of TRS-80 computers, said about the new IBM PCjr: "I'm sure a lot of people will be coming out with PCjr look-alikes. The market is big." While preparing t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industry Standard Architecture
Industry Standard Architecture (ISA) is the 16-bit internal bus (computing), bus of IBM PC/AT and similar computers based on the Intel 80286 and its immediate successors during the 1980s. The bus was (largely) backward compatible with the 8-bit bus of the 8088-based IBM PC, including the IBM PC/XT as well as IBM PC compatibles. Originally referred to as the PC bus (8-bit) or AT bus (16-bit), it was also termed ''I/O Channel'' by IBM. The ISA term was coined as a retronym by IBM PC clone manufacturers in the late 1980s or early 1990s as a reaction to IBM attempts to replace the AT bus with its new and incompatible Micro Channel architecture. The 16-bit ISA bus was also used with 32-bit processors for several years. An attempt to extend it to 32 bits, called Extended Industry Standard Architecture (EISA), was not very successful, however. Later buses such as VESA Local Bus and Peripheral Component Interconnect, PCI were used instead, often along with ISA slots on the same mainbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Card - Northern Telecom (nortel) - Voice Messaging Storage - Bottom
Hard means something that is difficult to do. It may also refer to: * Hardness, resistance of physical materials to deformation or fracture * Hard water, water with high mineral content Arts and entertainment * ''Hard'' (TV series), a French TV series * Hard (band), a Hungarian hard rock supergroup * Hard (music festival), in the U.S. Albums * ''Hard'' (EP), Goodbye Mr Mackenzie, 1993 * ''Hard'' (Brainpower album), 2008 * ''Hard'' (Gang of Four album), 1983 * ''Hard'' (Jagged Edge album), 2003 * ''Hard'' (Shinee album), 2023, and its title track * ''Hard'', a 2017 EP from the band The Neighbourhood Songs * "Hard" (Rihanna song), 2009 * "Hard" (Sophie song), 2014 * "Hard", a song by Royce da 5'9" from the 2016 album ''Layers'' * "Hard", a song by Why Don't We from the 2018 album ''8 Letters'' * "Hard", a song by Poppy from the 2023 album ''Zig'' Places * Hard, Austria * Hard (Zürich), Switzerland Other uses * Hard (surname) * Hard architecture, impersonal windowless b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shugart Associates System Interface
Small Computer System Interface (SCSI, ) is a set of standards for physically connecting and transferring data between computers and peripheral devices, best known for its use with storage devices such as hard disk drives. SCSI was introduced in the 1980s and has seen widespread use on servers and high-end workstations, with new SCSI standards being published as recently as SAS-4 in 2017. The SCSI standards define commands, protocols, electrical, optical and logical interfaces. The SCSI standard defines command sets for specific peripheral device types; the presence of "unknown" as one of these types means that in theory it can be used as an interface to almost any device, but the standard is highly pragmatic and addressed toward commercial requirements. The initial Parallel SCSI was most commonly used for hard disk drives and tape drives, but it can connect a wide range of other devices, including scanners and optical disc drives, although not all controllers can handle all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milliseconds
A millisecond (from '' milli-'' and second; symbol: ms) is a unit of time in the International System of Units equal to one thousandth (0.001 or 10−3 or 1/1000) of a second or 1000 microseconds. A millisecond is to one second, as one second is to approximately 16.67 minutes. A unit of 10 milliseconds may be called a centisecond, and one of 100 milliseconds a decisecond, but these names are rarely used. To help compare orders of magnitude of different times, this page lists times between 10−3 seconds and 100 seconds (1 millisecond and one second). ''See also'' times of other orders of magnitude. Examples The Apollo Guidance Computer used metric units internally, with centiseconds used for time calculation and measurement. *1 millisecond (1 ms) – cycle time for frequency 1 kHz; duration of light for typical photo flash strobe; time taken for sound wave to travel about 34 cm; repetition interval of GPS C/A PN code *1 millisecond – time taken f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Card - Northern Telecom (nortel) - Voice Messaging Storage - Side
Hard means something that is difficult to do. It may also refer to: * Hardness, resistance of physical materials to deformation or fracture * Hard water, water with high mineral content Arts and entertainment * ''Hard'' (TV series), a French TV series * Hard (band), a Hungarian hard rock supergroup * Hard (music festival), in the U.S. Albums * ''Hard'' (EP), Goodbye Mr Mackenzie, 1993 * ''Hard'' (Brainpower album), 2008 * ''Hard'' (Gang of Four album), 1983 * ''Hard'' (Jagged Edge album), 2003 * ''Hard'' (Shinee album), 2023, and its title track * ''Hard'', a 2017 EP from the band The Neighbourhood Songs * "Hard" (Rihanna song), 2009 * "Hard" (Sophie song), 2014 * "Hard", a song by Royce da 5'9" from the 2016 album ''Layers'' * "Hard", a song by Why Don't We from the 2018 album ''8 Letters'' * "Hard", a song by Poppy from the 2023 album ''Zig'' Places * Hard, Austria * Hard (Zürich), Switzerland Other uses * Hard (surname) * Hard architecture, impersonal windowless b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nortel
Nortel Networks Corporation (Nortel), formerly Northern Telecom Limited, was a Canadian Multinational corporation, multinational telecommunications and data networking equipment manufacturer headquartered in Ottawa, Ontario. It was founded in Montreal, Quebec in 1895 as the Northern Electric and Manufacturing Company, or simply Northern Electric. Until an antitrust settlement in 1949, Northern Electric was owned mostly by Bell Canada and the Western Electric, Western Electric Company of the Bell System, producing large volumes of telecommunications equipment based on licensed Western Electric designs. At its height, Nortel accounted for more than a third of the total valuation of all companies listed on the Toronto Stock Exchange (TSX), employing 94,500 people worldwide. In 2009, Nortel filed for bankruptcy protection in Canada and the United States, triggering a 79% decline in its corporate stock price. The bankruptcy case was the List of corporate collapses and scandals, larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Disk 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 hard disk drive platter, platters coated with magnetic material. The platters are paired with disk read-and-write head, 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 Block (data storage), 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 disk enclosure, rectangular box. Hard disk drives were introduced by IBM in 1956, and were the dominant secondary storage device for History of general-purpose CPUs, general-purpose computers beginning in the early 1960s. HDDs maintained this position into the modern er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone
A telephone, colloquially referred to as a phone, is a telecommunications device that enables two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via Electrical cable, cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from and (, ''voice''), together meaning ''distant voice''. In 1876, Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice at a second device. This instrument was further developed by many others, and became rapidly indispensable in business, government, and in households. The essential elements of a telephone are a microphone (''transmitter'') to speak into and an earphone (''receiver'') which reproduces the voice a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voice Messaging
A voicemail system (also known as voice message or voice bank) is a computer-based system that allows callers to leave a recorded message when the recipient has been unable (or unwilling) to answer the phone. Calls may be directed to voicemail manually or automatically. The caller is prompted to leave a message that the recipient can retrieve at a later time. Voicemail can be used for personal calls, but more complex systems exist for companies and services to handle the volume of customer requests. The term is also used more broadly to denote ''any'' system of conveying stored telecommunications voice messages, including using older technology like answering machines. Features Voicemail systems are designed to convey a caller's recorded audio message to a recipient. To do so they contain a user interface to select, play, and manage messages; a delivery method to either play or otherwise deliver the message; and a notification ability to inform the user of a waiting messag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
