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The document defines and describes various components and processes related to computer storage. It defines partitions, platters, disk read/write heads, floppy disks, seek time, defragmenters, formatting, sectors, backups, data transfer rates, fragmentation, USB flash drives, CD/DVD burners, hybrid drives, and non-volatile memory. Each term is concisely defined in one to two sentences.
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Storage devicesPurvesh Shinde
油
There are two main types of storage devices: primary and secondary. Primary storage devices, like RAM and cache, are internal and hold data temporarily at high speeds. Secondary storage devices, like hard disk drives, USB drives, CDs, and memory cards, can be internal or external and store data permanently in large capacities. Common examples of primary storage devices are RAM, which temporarily stores frequently used data for high access speeds, and cache memory. Common examples of secondary storage devices are hard disk drives, which store data on spinning magnetic disks; USB drives, also known as flash drives or pen drives, which are portable solid-state memory storage; optical discs like CDs and DVDs, which use lasers to read and write dataChapter07
Chapter07japontev
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The document discusses various types of computer storage media and devices. It describes floppy disks, hard disks, CDs, DVDs, tape drives, PC cards, flash memory cards, and smart cards. It explains how each type of media stores data and some key characteristics like storage capacity and data transfer rates. The document is intended to describe different storage options and how they work at a high level.Ad
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- 1. Partition Is an area of a hard disk that can be formatted and assigned a drive letter. Spin Refers to the process of a hard drive or optical drive speed dishes or optical disc inserted a stopped state to an operating speed. Platter (or disk): Is the circular disk on which magnetic data is stored in a hard disk drive. The rigid nature of the platters in a hard drive is what gives them their name (as opposed to the flexible materials which are used to make floppy disk). Disk read/write heads are the small parts of a disk drive, that move above the disk platter and transform the platter's magnetic field into electrical current (read the disk) or vice versa transform electrical current into magnetic field (write the disk). Floppy disk also called a diskette, is a disk storage medium composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic carrier lined with fabric that removes dust particles. Floppy disks are read and written by a floppy disk drive. Seek Time is the time it takes a device to find the first thing you have to start reading. Defragmenter is a process that reduces the amount of fragmentation. It also attempts to create larger regions of free space using compaction to impede the return of fragmentation. Some defragmentation utilities try to keep smaller files within a single directory together, as they are often accessed in sequence.}
- 2. Formatting is a set of computer, independent operations each other, physical or logical, allowing restore a hard drive, a partition of the same or any other storage device data to its original state, or optimal for reuse or rewritten with new information. Sector: is the section of the surface thereof corresponding to the area enclosed between two radial lines of a track Backup or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event. Data Transfer Rate is determined by a combination of mechanical and electronic factors. Thanks to technological advances in recent years, today's hard drives can transfer data at a rate that is nearly 60,000 times faster than that of the first units of the 1950s. Fragmentation Is a phenomenon that occurs with regular use of storage devices, either main memory (RAM) or secondary storage devices such as hard drives or flash drives. USB Flash Drive Is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc. CD/DVD Burner a device that can record data to a compact disc using a laser to etch the data into Hybrid drives are storage devices that combine NAND flash solid-state drive (SSD) with hard disk drive (HDD) technology, with the intent of adding some of the speed of SSDs to the cost-effective storage capacity of traditional HDDs. The purpose of the SSD in a hybrid drive is to act as a cache for the data stored on the HDD, by keeping copies of the most frequently used data on the SSD for improved overall performance.
- 3. Non-volatile memory: is computer memory that can get back stored information even when not powered.