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Travan is an 8 mm magnetic tape cartridge design developed by the 3M company, used for the storage of data in computer backups and mass storage. [1] Over time, subsequent versions of Travan cartridges and drives have been developed that provide greater data capacity, while retaining the standard 8 mm width and 750' length.
At the end of the tape, the drive reversed the direction of tape motion, moved the read and write heads slightly vertically across the tape, and continued to write (or read) more data until the beginning of the tape was reached. This process could be repeated many times, laying down several track sets on the tape media in a serpentine recording ...
The lead-in at the start of the file produced a steady tone that was used to measure the actual data rate on the tape, which might change due to tape stretch or differences between machines. During a read, the system set an input timer to the maximum value of $3FFF and then read one byte.
In 2008, 3M created the Renewable Energy Division within 3M's Industrial and Transportation Business to focus on Energy Generation and Energy Management. [ 87 ] [ 88 ] In late 2010, the state of Minnesota sued 3M for $5 billion in punitive damages, claiming they released PFCs —classified a toxic chemical by the EPA—into local waterways. [ 89 ]
Early half-inch tape had seven parallel tracks of data along the length of the tape, allowing 6-bit characters plus 1 bit of parity written across the tape. This was known as 7-track tape . With the introduction of the IBM System/360 mainframe, 9-track tapes were introduced to support the new 8-bit characters that it used.
[8] [9] The name was soon applied to the entire line of 3M tapes. Scotty McTape, a kilt-wearing cartoon boy, was the brand's mascot for two decades, first appearing in 1944. [10] The familiar tartan design, a take on the well-known Wallace tartan, was introduced in 1945. [10] The Scotch brand, Scotch Tape and Magic Tape are registered ...
Oracle's free open source StorageTek Linear Tape File System (LTFS), Open Edition software [10] is claimed to be the first to store 8.5TB (native capacity) on a single cartridge. It supports Oracle’s midrange StorageTek LTO 5 and LTO 6 tape drives from HP and IBM as well as Oracle’s StorageTek T10000C and T10000D tape drives. [11] [12]
The Compact Cassette, also commonly called a cassette tape, [2] audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback. Invented by Lou Ottens and his team at the Dutch company Philips , the Compact Cassette was released in August 1963.