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Audio Tape Cartridge
A tape cartridge, also known as a tape cart, is a storage medium used for audio recording, video recording, or data storage that includes a magnetic tape housed in a plastic unit that contains a single reel for the tape. The format has become obsolete as an audio and video format but still remains in use for data storage for enterprise and commercial use with new formats and enhanced updates still being released. History The beginning of tape cartridges goes back to loop recording, also known as endless tape recording, which in this case referred to the endless playback of tape read in the tape transport. This was first used in specialized open reel machines that would continuously record or play an endless loop. Endless tape recording was ideal for security footage when the tape was necessary to be stored while endless playback was mainly used for audio. Setting up a reel to reel machine for playback was a common nuisance as it took a lot of time to set up and make sure the tap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Recording
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a larger loudspeaker diaphragm c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantata 700
The Cantata 700 is a commercial background music system and corresponding tape cartridge format developed by 3M that was in common use from 1965 until the 1990s. Cartridge The nearly square-shaped cartridges are among the largest built. More than 24 hours of playback fits on a cartridge. The music distributed by 3M consisted of mono recordings some of which are attributed to the company's "3M Orchestra", with later editions featuring a themed blend of library music tracks and mostly instrumental cover versions of standard songs, and classical pieces arranged in a light or bright tempo. Cartridges such as the Italian and Polynesian editions include some vocal content. The tape is wide and is played at per second. The cartridge consists of a reel-to-reel mechanism intended for playback only. Internally, the cartridge contains two magnetic tape, tape reels, tape guides, rollers, and a reel brake. The reels are stacked on top of each other vertically and counter rotate during ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Repository
In information technology, an information repository or simply a repository is "a central place in which an aggregation of data is kept and maintained in an organized way, usually in computer storage." It "may be just the aggregation of data itself into some accessible place of storage or it may also imply some ability to selectively extract data." Universal digital library The concept of a universal digital library was described as "within reach" by a 2012 '' European Union Copyright Directive'' which told about Google's attempts to "mass-digitize" what are termed "orphan works" (i.e. out-of-print copyrighted works). The U.S. Copyright Office and the European Union Copyright law have been working on this. Google has reached agreements in France which "lets the publisher choose which works can be scanned or sold." By contrast, Google has been trying in the USA for a "free to digitize and sell any works unless the copyright holders opted out" deal and is still unsuccessful. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Proliferation
Data proliferation refers to the prodigious amount of data, structured and unstructured, that businesses and governments continue to generate at an unprecedented rate and the usability problems that result from attempting to store and manage that data. While originally pertaining to problems associated with paper documentation, data proliferation has become a major problem in primary and secondary data storage on computers. While digital storage has become cheaper, the associated costs, from raw power to maintenance and from metadata to search engines, have not kept up with the proliferation of data. Although the power required to maintain a unit of data has fallen, the cost of facilities which house the digital storage has tended to rise. Data proliferation has been documented as a problem for the U.S. military since August 1971, in particular regarding the excessive documentation submitted during the acquisition of major weapon systems. Efforts to mitigate data proliferation an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Data Storage
Computer data storage or digital data storage is a technology consisting of computer components and Data storage, recording media that are used to retain digital data. It is a core function and fundamental component of computers. The central processing unit (CPU) of a computer is what manipulates data by performing computations. In practice, almost all computers use a storage hierarchy, which puts fast but expensive and small storage options close to the CPU and slower but less expensive and larger options further away. Generally, the fast technologies are referred to as "memory", while slower persistent technologies are referred to as "storage". Even the first computer designs, Charles Babbage's Analytical Engine and Percy Ludgate's Analytical Machine, clearly distinguished between processing and memory (Babbage stored numbers as rotations of gears, while Ludgate stored numbers as displacements of rods in shuttles). This distinction was extended in the Von Neumann archite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Videotape
Videotape is magnetic tape used for storing video and usually Sound recording and reproduction, sound in addition. Information stored can be in the form of either an analog signal, analog or Digital signal (signal processing), digital signal. Videotape is used in both video tape recorders (VTRs) and, more commonly, videocassette recorders (VCRs) and camcorders. Videotapes have also been used for storing scientific or medical data, such as the data produced by an electrocardiogram. Because video signals have a very high Bandwidth (signal processing), bandwidth, and Tape head, stationary heads would require extremely high tape speeds, in most cases, a helical scan, helical-scan video head rotates against the moving tape to record the data in two dimensions. Tape is a Linear motion, linear method of storing information and thus imposes delays to access a portion of the tape that is not already against the heads. The early 2000s saw the introduction and rise to prominence of high-q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audiotape
Audiotape is magnetic tape used for storing audio. Information stored can be in the form of either an analog or digital signal. Audiotape can be used in various tape recorders including machines for reel-to-reel audio tape recording on open reels or they can be enclosed in cases that only have one reel ( tape cartridge) or two reels (cassette tape). History The use of magnetic tape for sound recording can be traced back to 1924 when German engineer, Kurt Stille, developed a dictation machine that used steel wires called the Poulsen wire recorder. Louis Blattner, a German engineer working in Britain, licensed Stille's technology the following year and started work on a machine that would be able to record on a magnetic steel tape. The machine would later be called the Blattnerphone. The machine used steel tape that was 6 mm wide and 0.08 mm thick. It travelled at 5 feet per second and was able to record up to 20 minutes of audio. Although the tape was used by some organizations l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassette (format)
Cassette, also known as cassette tape, refers to a small plastic unit containing a length of magnetic tape on two reels. The design was created to replicate the way a reel-to-reel machine works with tape moving from one reel to another while being read by a tape head. The design was first made for audio formats but then expanded into video and data storage. , although the cassette format is no longer used for video or data storage, it is still used as an audio format with many consumers still purchasing new album releases on cassette. Terminology The term cassette mainly refers to a unit that has two reels inside. While some of the first cassette formats also used the term "cartridge", in modern usage the term "cartridge" and "tape cartridge" usually refers to a plastic unit that only has one reel of tape and companies that make and sell both type of formats like Fujifilm or Maxell also make the same distinction. History Magnetic tape became a popular method to record and play ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Cassette Tape And Cartridge Tape Formats
The following is a list providing an overview of all the different cassette tape and cartridge formats that use magnetic tape. Both "cassette" and "cartridge" refer to a small plastic unit containing a length of magnetic tape on at least one reel. The unit may contain a second "take-up" reel or interoperate with such a reel in an associated tape drive. At least 142 distinct types have been known to exist. The phrase ''cassette tape'' is ambiguous in that there is no common dictionary definition so depending upon usage it has many different meanings, as for example any one the one of 106 different types of audio cassettes, video cassettes or data cassettes listed aThe Museum of Obsolete Media The phrase ''cartridge tape'' is also ambiguous with 36 different types of audio, video or data cartridges listed at The Museum of Obsolete Media. From time to time the terms tape cartridge and tape cassette are used to describe the same product. In current production are the Compact Casse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 3592
The IBM 3592 is a series of enterprise-class tape drives and corresponding magnetic tape data storage media formats developed by IBM. The first drive, having the IBM product number 3592, was introduced under the nickname ''Jaguar''. The next drive was the TS1120, also having the nickname Jaguar. , the latest and current drive is the TS1170. The 3592 line of tape drives and media is not compatible with the IBM 3590 series of drives, which it superseded. This series can store up to 50 TB of data (uncompressed) on a tape cartridge and has a native data transfer rate of up to 400 MB/s. In August 2023 IBM announced the TS1170 tape drive with 50TB cartridges, more than 2.5 times larger than LTO-9 cartridges. Like the 3590 and 3480 before it, this tape format has half-inch tape spooled onto 4-by-5-by-1-inch data cartridges containing a single reel. A take-up reel is embedded inside the tape drive. Because of their speed, reliability, durability and low media cost, the 3592 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linear Tape-Open
Linear Tape-Open (LTO), also known as the LTO Ultrium format, is a magnetic tape data storage technology used for backup, data archiving, and data transfer. It was originally developed in the late 1990s as an open standards alternative to the proprietary magnetic tape formats available at the time. Upon introduction, LTO rapidly defined the ''super tape'' market segment and has consistently been the best-selling super tape format. The latest generation as of 2025, LTO-10, can hold in one cartridge, or with industry-standard 2.5:1 compression. Cartridges contain hundreds of meters of half-inch (12.65 mm) wide tape media wound onto a single reel. Mechanisms (a.k.a. tape drives, streamers) extract the tape from the cartridge and spool it up on a second reel in the mechanism, reading or writing data as the tape moves between reels. Robotic Tape library, libraries exist that can hold hundreds or thousands of LTO cartridges and dozens of mechanisms. The original version of LTO U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Linear Tape
Digital Linear Tape (DLT; previously called CompacTape) is a magnetic-tape data storage technology developed by Digital Equipment Corporation (DEC) from 1984 onwards. In 1994, the technology was purchased by Quantum Corporation, who manufactured drives and licensed the technology and trademark. A variant with higher capacity is called Super DLT (SDLT). The lower cost "value line" was initially manufactured by Benchmark Storage Innovations under license from Quantum. Quantum acquired Benchmark in 2002. In 2007, Quantum stopped developing DLT drives, shifting its strategy to Linear Tape-Open, LTO. History DEC launched the TK50 tape drive for the MicroVAX, MicroVAX II and PDP-11 minicomputers in 1984. This used 22-track CompacTape I cartridges, storing 94 MB per cartridge. The TK50 was superseded in 1987 by the TK70 drive and the 48-track CompacTape II cartridge, capable of storing 294 MB. In 1989, the CompacTape III (later DLTtape III) format was introduced, increasing the numbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
