WHAT IS A TAPE? As a data storage medium in computers, tape is a technology that has been used for more than 60 years and was originally used to back up data from the Univac I system in 1951. It continues to be used for backup replacement of various large computer host systems Univac systems. From there, tape-based backups migrated to distribute computing platforms as the proliferation of PCs (personal computers) began to network together to share expensive disk space to store their generated data. [ Related: https://www.linkedin.com/in/alina-smith-168b72163/detail/recent-activity/posts/ ] Basic Definition In IT, a magnetic tape (also known as a magnetic tape or an electromagnetic tape) is a readable and writable external storage medium consisting of a flexible cell-like material ring coated on one side with a ferromagnetic material. It is typically used for backup, archive, and data collection operations. The tape is wound on a reel which may be an open reel, such as a reel for use with a host system, or they may be included in some type of cassette or cassette that is common today. Data is recorded on the tape by a tape drive that magnetically encodes the tracks on the magnetic coating according to a particular tape format. A Word about the Format Tapes have come in many forms for many years, starting with the Univac 1200-foot reel and using a thick 1/2-inch wide nickel-plated bronze metal strip. IBM then introduced a 10.5-inch reel that used a cheaper ferrous oxide-coated 1⁄2-inch celluloid tape, similar to the tape used for recording, with lengths of 1200 and 2400 feet. The first series of these IBM unwinding tapes contained seven parallel track data recorded along the length of the tape. Later versions added it to nine parallel data tracks (8 bits plus parity). In contrast, modern ink cartridges use 128 or more tracks. Prior to IBM's development of tape-based tapes, IBM's nine-track unwinding tape has been the de facto industry standard for mainframe systems for many years. Soon, other companies began to produce cassettes of various sizes and formats. In the late 1990s to the 2000s, some of the more common formats were IBM 3590/2, DDS (Digital Data Storage - 4mm), AIT, AIT-2 (Advanced Smart Tape - 8mm), Mammoth (also 8mm), DLT (Digital Linear Tape) Series (I-IV), SDLT (Super Digital Linear Tape) and LTO-1 to 7 (Linear Tape Open 1-7). Today, the LTO format is the most widely used format in distributed computing environments. The future of tape New and ongoing developments in LTO tape technology and reliability ensure that it will become a viable storage medium for the foreseeable future. LTO's current roadmap shows the continued growth in capacity and throughput required to handle growing unstructured data. If you don't have tape as part of your infrastructure today, you should explore and if you do, you will be confident that your investment will be available in the coming decades. read more about tapes...
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