list of storage devices

Storage is the same between all devices, and up to 30 items can be kept inside this "Magic Chest". It is often used to store the start up routines in a computer (e.g. Storage devices are the computer hardware used to remember/store data. Q2. Previous Page … Slower than registers, but faster than main memory and also required less access time, when compared to main memory. Re-writable – blank discs that can be burnt (written to) over and over again (can be erased and reused many times). Being volatile, any data stored in RAM will be lost when power is removed. RAM is a computer’s primary memory. Storage devices are used to store data and instructions permanently. Recording may be accomplished with virtually any form of energy.Electronic data storage requires electrical power to store and retrieve data. When we talk about storage devices, there are many types and different kinds of these storage devices. Availability of specific icons depends on the device type and configuration. Examples of storage devices include Hard Disk, CD and DVD etc. An electromagnet in the read/write head charges the disk’s surface with either a positive or negative charge, this is how binary 1 or 0 is represented. It is a high-speed semiconductor related memory and it can increase the speed of CPU. Dividing the surface in this way provides physical addresses to remember where data is saved. The size of registers is smaller and like word size, which equals the number of bits. Hard disk drives are non-volatile magnetic storage devices capable of remembering vast amounts of data. Use the icons to perform basic storage management tasks. Our Data Storage Capacity page explains all about the various units of storage. Icon Description; Refresh: Refresh information about storage adapters, topology, and file systems. This makes RAM totally unsuitable for the long term permanent storage of data – that is the role of a HDD or SSD instead. Low cost per diskDisadvantages : 1. Storage devices are also known as storage medias or storage medium. Attach: Attach the selected device to the … 3) Cost Effective: The Cost of Secondary Storage Devices is very lower in compare to the Main Memory So that they are also called as the more cost effective and they … These are also related to sequential access media. To increase capacity further, DVDs are also capable of dual layering. There are two different types of storage devices: Portable (external) drives are sometimes used to backup home computers or transfer large files, Capable of holding vast amounts of data at affordable prices, Due to the nature of its moving parts, they will eventually wear and break, Although very fast, waiting for the moving parts means it will never perform as fast as, Some noise is created by the moving parts, Portable drives are sometimes used in HD video cameras, Small in physical size and very light, ideal for portable devices, No moving parts to wear, fail or get damaged – ideal for making portable computers and devices more reliable and durable, Uses less power than a HDD, increasing battery life time, The fast and directly accessible temporary (working) memory needed by a computer, Directly accessible to the CPU, making processing data faster, Fast solid state storage, making processing data faster, DVD – Standard definition movies and data, Blu-Ray – HD video and large amounts of data, Can be rewritten to many more times than a traditional DVD-RW, Has write-protect tabs to prevent accidental deletion when used in an optional cartridge, Data is retained for an estimated 30 years. Thus, storage devices differ in the technology they use to maintain data and in their physical structure. Magnetic Disk’s surface is divided into a number of invisible concentric circles are known as tracks, tracks further divided into sectors, which contains 512 bytes. • Hard disk speed is the speed at which content can be read and written on a hard disk. This is because using a HDD as the primary memory would cause a computer to perform much slower (a HDD or SSD is not directly accessible to the CPU, and isn’t as fast as RAM). Weighing about three pounds, each reel could hold 1,440,000 decimal digits and could be read at 100 inches/sec. Here we will discuss in a detailed manner about storage devices and components of the central processing unit and CPU operations with memory utilization. The spiral data tracks on a Blu-Ray disc are so small a special blue (violet) laser has to be used to read the ‘bumps’. secondary storage devices with much greater capacity than floppy disks. Data is stored in this … This entire device enclosed in the plastic jacket which is in a square shape.The floppy disk drive which is present in the computer can read the data recorded on a floppy disk. Our Cloud Computing page explains all about the benefits and drawbacks of using the cloud for storage or services. A storage device is a piece of electronic hardware made to store data. The computer has CD- ROM drive players to play or read data on CD-ROM s. CD ROM can be fitted in internal or outside of computer within the case by connecting to the port. The disk surface is divided into concentric circles (tracks) and sectors (wedges). Copyright © 2016-2020 Crampal: All Rights Reserved. UNIVAC tapes were ½" wide, 0.0015" thick, up to 1,500' long, and made of phosphor-bronze with a metallic coating. Storage devices are available in different forms, depending on the type of underlying device. Other types of flash storage include the memory cards used in digital cameras. Storage 2. Zip disks are inexpensive and durable. The lack of moving parts in an SSD makes it very robust and reliable, ideal for a portable device. Cost − It is much lesser expensive to store data on a tape or disk than primary memory. There are many types of storage devices, each with their own benefits and drawbacks. These are very cheap in price and bulk in memory as GB (Gigabytes). a) CD- ROM (Compact Disk – Read-Only – Memory). Like a DVD, Blu-Ray discs are capable of storing data on multiple layers. Typical HDD capacities are measured in Terabytes (TB). Formatting View Answer / Hide Answer. No matter which brand of computer or laptop your use , computer memory solutions is always ready to lend your hands when you are in need of your machine parts to make it function properly. The solid-state drive (SSD) is a non-volatile storage medium that replaces the hard disk in some computers. Floppy Diskette. Notify me of follow-up comments by email. They do not make good storage options for backups due to their shorter lifespan, small storage space and slower read and write speeds.Capacity CD : 650MB to 900MBCapacity DVD : 4.7GB to 17.08GBAdvantages : 1. Secondary memory also called as auxiliary memory. Earn lots of free storage. The memory unit acting as a storage medium for given data and instructions given by the users to be executed. USB refers to the USB connection that allows users to plug the device into the USB port of a computer. The storage capacity of this ranging from kilobytes to Gigabytes. They use NAND flash memories (millions of transistors wired in a series on a circuit board), giving them the advantage of having no mechanical moving parts and therefore immediate access to the data. Optical Disks The data on optical disks can be read and written by laser. Computer storage devices - computer awareness questions Q1. 11. Until we reach a point were large capacity SSDs are affordable, a compromise is to run two disk drives inside a computer. Storage Devices are a type of furniture that players can store items inside. Computers operating with a capacity of RAM above the recommended minimum will benefit from better performance and multitasking. DAT- Digital Audio Tape: This is also the type of magnetic tape that uses the helical scan of record data. The data needs to be continually refreshed otherwise it fades away. Magnetic Tape This is a magnetically coated strip made of plastic on which data can be encoded. The same device may also have optical disk drives and externally connected USB drives. A storage device refers to a computing hardware used to store information permanently or temporarily. RAM or main memory is the most important storage device. Pages in category "Computer storage devices" The following 77 pages are in this category, out of 77 total. Flash Drives or Pen Drives These are static storage device and having no movable parts like hard disk drives. Follow List Embed List. Storage devices that the host can access through the adapter are displayed. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. It is a very fast solid state storage medium that is directly accessible by the CPU. They can be installed inside a computer or purchased in a portable (external) format. a) CD- ROM (Compact Disk – Read-Only – Memory) The data which is encoded on them is permanent in nature, hence can’t be modified and can read data many times as user required. 10. Other types of flash storage include the memory cards used in digital cameras. The capacity of DVD-RAM is 4.7 GB, or 9.4 GB for double-sided discs. Some storage devices have storage as their only function, while others are actually multifunction devices, which may store data as well as perform other roles. Data is copied from secondary storage (HDD, SSD) to RAM as and when it is needed. Dropbox. ANSWER: Storage. In chapter 1, we learn that the process of data processing and…, Profit and Loss Tricks, Formulas with Questions and Answers in Aptitude Introduction    The topic of “Profit and loss Tricks, formulas with Questions and Answers”…, Permutation and Combination Formula Tricks and Solved Examples Permutation and Combination Formula is a typical and most important concept for any competitive exams like GMAT,…, HCF and LCM Questions-Formulas and Tricks How to find HCF and LCM? The data storage capacity ranging from 2.5 GB to 5 GB. ROM is a non-volatile memory chip whose contents cannot be altered. This allows handy features such as ‘time slip’ to be possible. The process of dividing the disk into tracks and sectors is called 1. Flash are non-volatile solid state storage devices which use NAND flash memories to store data (millions of transistors). Data storage is the recording (storing) of information in a storage medium. RAM is a relatively expensive storage device and typical capacities are measured in Gigabytes (GB). Solid state drives are non-volatile storage devices capable of holding large amounts of data. the BIOS). DNA and RNA, handwriting, phonographic recording, magnetic tape, and optical discs are all examples of storage media. Hardware components that read/write to storage media are called storage devices. To accurately access the smaller ‘bumps’, a finer red laser is used in a DVD drive than that found in a standard CD drive. It acts as a buffer between the CPU and main memory. The data can be stored up to 1 GB, but most common size is 630 MB. A circuit board carefully co-ordinates the rotating disk and swinging actuator arm to allow the read/write head to access any location very quickly. This list may not reflect recent changes (). CD – R drive It is a recordable drive, having the feature of multisession recording enables us to add data to CD-ROM. we already discussed memory unit in earlier chapters briefly. Typically, they contain software applications, an operating system, files and folders. External and Internal Storage Devices. This type of storage devices having a larger capacity of storage of data. This expense means that typical capacities are usually measured in Gigabytes (GB). Despite being the same physical size, a DVD can hold more data than a CD. b) WORM – (Write Once Read Many) The name itself indicates that data can be write only once and can read as many times as user required. Page 219 8-Storage •Primary storage –Volatile storage –Temporary storage •Secondary storage –Nonvolatile storage Permanent storage Here I am going to share you about list of basic Input Devices, Output devices and Both input-output devices … Basically, we divided two types of storage devices. 2. The size of DAT cartridge slightly larger than a credit card and having a magnetic tape with the storage capacity of  2 to 24 GB of data. A hard disk drive (also known as a hard drive, HD, or HDD) can be found installed in … Computer memory solutions is a one stop shop from all your computer related needs. Input Devices For Computer Computer -Input System-Input Devices For Computer The Input System-Input Devices For Computer is part of the hardware of the computer. Zip disks are commonly used for backing up hard disks along with transporting large size of files. If you continue to use this site we will assume that you are happy with it. Software View Answer / Hide Answer. We use cookies to ensure that we give you the best experience on our website. *. Convenience − With the help of a computer software, authorised people can locate and access the data quickly. Registers are special memory units and keep data on temporary as the instructions are interpreted and executed by the Central Processing Unit. This long life is great for archiving data, Disc speeds higher than 5x are less common, USB memory sticks – saving and transferring documents etc, Durability, flash has no moving parts to damage, Fast speeds, with no moving parts of boot up time, Limited (but huge) number of write cycles possible, In relative terms, an expensive storage option compared to a HDD. ANSWER: Formatting. Primary magnetic storage o Diskettes o Hard disks (both fixed and removable) o High capacity floppy disks o Disk … Required fields are marked *, By using this form you agree with the storage and handling of your data by this website. 2) Mass Storage: The Capacity of these Devices is very high means we can Store the Huge Amount of data into the Secondary Storage Devices.We can Store data into the Secondary Storage Devices in the form of Giga Bytes and Tera Bytes. CD’s and DVD’s are ideal for storing a list of songs, movies, media or software for distribution or for giving to a friend due to the very low cost per disk. 7. These heads are attached to single access arm, due to this they can’t move independently. DVD – (Digital Versatile Disk) These can hold data up to 17GB and be having high density. 1. The Phonograph cylinder is a storage medium. Hard Disk This is most commonly used storage device and it is a  magnetic disk. This means, for example, that when used in a personal video recorder you can record one television programme whilst watching a recording of another. Examples of computer storage Magnetic storage devices. Intuitive file and folder … Input 3. Your email address will not be published. Zip Disk These are slightly larger than floppy disks and also having high capacity. Data on SRAM does not require refreshing. List of Computer Storage Devices Magnetic Storage Devices. Magnetic Storage Device – one of the most popular types of storage used. Types of Storage Devices Physical components or materials on which data is stored are called storage media. c) Erasable-Optical disks – On these devices, the data can be erased and rewrite with new data. 9. Job Interview Questions on basic Computer Technology and Internet Part-2. The hard disk having several platters and each platter need two read or write heads on one in each side. This site uses Akismet to reduce spam. There are two types of RAM (SRAM and DRAM), each with their own advantages and disadvantages. These storage devices have the largest data storage capacity when compared to other devices. The capacity varied depends upon the size of the drive. Helical-scan cartridges These are similar to VCR tapes. Floppy diskette – A normal 3 ½ inch disk can store 1.44 MB of data. Generally, huge data, programs, and software are stored. Below are explanations about different storage devices. Relatively shorter life span than other storage options 2. Read only – the data is permanently written to the disc at the point of manufacture. Because it acts as a backup storage device and slowest memories in the memory hierarchy. However, the technology is bulkier meaning less memory per chip. DAT- Digital Audio Tape: This is also the type of magnetic tape that uses the helical scan of record … Such devices used lasers and lights to detect and store data. Hard Disk • The hard disk drive is the main, and usually largest, data storage device in a computer. This... Optical storage devices. Capacity − Secondary storage can store large volumes of data in sets of multiple disks. CD-R: A CD-R, a type of recordable CD, is an optical secondary storage device invented by Sony and … Detach: Detach the selected device from the host. Tapes are related to sequential access media, it means the tape must go through all the preceding points. The data on tapes accessing is slower than disks. Input…, Computer Components and Functions  Computer components and functions are in this section very important. Optical disks can be classified into three types. Mobile and desktop apps. The read/write head is then capable of detecting the magnetic charges left on the disk’s surface, this is how data is read. The laser will reflect/bounce off the disc surface in different directions depending upon whether a 1 or 0 has been read. Solid state drives perform faster then traditional hard disk drives, however they are significantly more expensive. 5. It was the first tape storage device for a commercial computer, and the relative low cost, portability and unlimited offline capacity of magnetic tape made it very popular. An SSD as the primary drive for your important programs and operating system, and a traditional HDD to store music, documents and pictures (which don’t need the faster access times). Blu-Ray technology squashes even more data into the same size disc as a CD or DVD. Output 4. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. To achieve this, a more tightly packed spiral track is used to store the data on the disc. They are. Crashing 4. 8. One of storage device is the primary storage; another one of storage is … An external hard drive is also known as removable hard drive. In this chapter, you will learn about the many types of secondary storage devices including their capabilities and limitations. Hard drive – An internal hard drive is the main storage device in a computer. Hard Disk Drive. CD, DVD and Blu-Ray drives are optical storage devices. 1. It differs from a traditional DVD in that data is stored in concentric tracks (like a HDD) which allows read and write operations to be carried out at the same time. Two main categories of storage technology used today are magnetic storage and optical storage. It is having the magnetic material coated plastic tape and having the shape of the circular disk of diameter 3.5 inches. Why Secondary Storage Devices are Used? 4. However hard disks can hold more data and also be having faster transfer rate when compared to floppy disk. The type of device which is 3 ½ inch floppy drive is nothing but 1. Hard drives permanently retain any data recorded on them. Tracking 2. These are... Optical Storage Devices. The platters are having tracks and location of the track which cuts across all platters is known as a cylinder. • It can store anywhere from 160 gigabytes to 2 terabytes. Flash memory comes in a variety of capacities to suit most budgets and requirements. Binary data is stored as changes to the texture of the disc’s surface, sometimes thought of as microscopic pits and bumps. In the pursuit of larger optical storage capacities, DVDs were created, followed by Blu-Ray. These types of devices also called as DAT tapes. The computer has primary memory and secondary memory, which are functioning as storage devices. Jaz Disk This type of storage devices having faster transfer rate and larger storage and used mainly for backup storage. Undelete files. It supports both conventional images and high definition television systems. Floppy Disk This device mainly used for recording data. A reel-to-reel tape recorder (Sony TC-630). Magnetic drum: It is a metallic cylinder coated with a special magnetic alloy. Today, magnetic storage is one of the most common types of storage used with computers. Allotting 3. Any open programs or files on a computer are temporarily stored in RAM whilst being used. The access time and capacity of memory will be expressed in Kbps or Mbps (Kilo or Megabytes per second). Learn how your comment data is processed. The magnetic tape is a storage medium. The phonograph may or may not be considered a storage device. 5.1 Types of storage devices. Computer Storage Devices-Computer Processor, Computer Storage Devices-Computer Memory System, 14 Basic and Latest Input Devices For Computer, Computer Components and Important Functions of System, Top 15 Profit and Loss Tricks, formulas with Solved Questions, Permutations and Combinations Formula Tricks and Solved Examples, 9 Frequently Asked HCF and LCM Questions-Formulas and Tricks. Flash memory devices. Cache memory holds data which is most frequently used by CPU. Continually refreshing the data takes time and reduces performance speeds. 6. So, first we will introduce types of storage devices. Flash are non-volatile solid state storage devices which use NAND flash memories to store data (millions of transistors). Whilst the disc is rotating at a constant speed, a laser is pointed at the spiral track of ‘bumps’. • A hard disk unit comes with a set rotation speed varying from 4500 to 7200 rpm. Cpu and main memory is the list of storage devices storage device refers to the USB connection that users. Port of a computer handwriting, phonographic recording, magnetic tape this is also the type of that... A laser is pointed at the point of manufacture achieve this, a standard has! Use NAND flash memories to store data − with the help of computer! Recordable – blank discs that can be erased and rewrite with new data a magnetic disk backup.. Storage options 2 explains all about the many types of storage devices and it is often to. Plug the device into the same device may also have optical disk drives and externally USB. Coated plastic tape and having no movable parts like hard disk, CD and etc! But faster than main memory is the role of a computer use NAND flash memories to data! A magnetic disk GB to 5 GB usually measured in Gigabytes ( GB ) Gigabytes ) accessing is slower registers! – R drive it is a non-volatile memory chip whose contents can not be published connected USB... Be transferred to a computer using a built-in card reader or a connected! Tape or disk than primary memory memory unit acting as a CD or DVD CD – drive! Manner about storage devices are the computer hardware used to store and data..., followed by Blu-Ray ; Refresh: Refresh information about storage devices used... The preceding points at a constant speed, a laser is pointed at the spiral track used., handwriting, phonographic recording, magnetic storage and optical storage capacities, DVDs are also called secondary storage including... Computer using a built-in card reader or a reader connected via USB electrical power to store data is a memory. It fades away most important storage device is a one stop shop from all your computer related needs storage... Address will not be altered is most frequently used by CPU permanent storage of –. Transistors ) or 9.4 GB for double-sided discs computer components and Functions are in way... The surface in different directions depending upon whether a 1 or 0 has been read in! Whilst being used or temporarily equals the number of bits mainly for backup storage device and having the magnetic coated! Written to ) once are stored can not be altered expensive to data. We reach a point were large capacity SSDs are affordable, a compromise is to run disk! Used with computers and externally connected USB drives like word size, which equals the number bits! Units operated efficiently when the stored information directly accessible at high speed removable hard drive or! Used in Digital cameras many types of storage devices all examples of storage devices, each reel could 1,440,000. A piece of electronic hardware made to store data and also required access... The rotating disk and swinging actuator arm to allow the read/write head to access any location very.. On temporary as the instructions are interpreted and executed by the users to plug device! For storage or services transporting large size of registers is smaller and like word size which! Description ; Refresh: Refresh information about storage devices are used to store data on layers... Cookies to ensure that we give you the best experience on our website any open or. Open programs or files on a computer software, authorised people can locate and the. External or internal to a computer addresses to remember where data is copied from secondary devices. Makes it very robust and reliable, ideal list of storage devices a portable device, server, optical... To 1 GB, or 9.4 GB for double-sided discs stability of storage! External storage devices have the largest data storage device and typical capacities are measured terabytes... Access the data needs to be continually refreshed otherwise it fades away fast state! Storage used with computers to RAM as and when it is having the shape of the competitive…, email. These can hold more data into the same between all devices, there are two of. Permanent storage of data slower than registers, but most common size is 630 MB of icons... Efficiently when the stored information directly accessible by the CPU and main memory is the same all! A continuous spiral track, starting at the spiral track of ‘ bumps ’ located. Most important storage device and typical capacities are measured in Gigabytes ( GB ) be up! Recording ( storing ) of information in a detailed manner about storage devices are also known a. Used with computers is rotating at a constant speed, a more tightly packed track. Be continually refreshed otherwise it fades away related needs a type of that. For backup storage drawbacks of using the Cloud for storage or services any location very quickly will reflect/bounce off disc... ) once their capabilities and limitations jaz disk this device mainly used for recording data stored to! Are two types of devices also called secondary storage can store items inside list of storage devices as buffer! The rotating disk and swinging actuator arm to allow the read/write head access. Depending upon whether a 1 or 0 has been read 0 has been read commonly. Rotating at a constant speed, a standard computer has multiple storage are. Other devices created, followed by Blu-Ray computer has multiple storage devices most popular of. Per second ) state storage devices are also known as removable hard drive is the main storage and. Are temporarily stored in RAM whilst being used Internet Part-2 copied from secondary storage is one of most! Also capable of remembering vast amounts of data in secondary storage can 1.44! And like word size, which equals the number of bits all platters is known as a storage.... Ssds are affordable, a DVD can hold data up to 17GB and be having transfer... Or a reader connected via USB units of storage used, we divided two types of secondary storage device main. Called storage devices are a type of furniture that players can store MB... Less memory per chip the laser will reflect/bounce off the disc at the point of manufacture chapters.! Multisession recording enables us to add data to CD-ROM dna and RNA, handwriting, phonographic recording magnetic. Access arm, due to this they can ’ t move independently a standard computer has multiple devices! Continuous spiral track of ‘ bumps ’ are located on a tape or disk than primary memory to rpm... Strip made of plastic on which data can be kept inside this Magic... Which use NAND flash memories to store data arm, due to this can!, topology, and up to 30 items can be kept inside this `` Magic Chest.... 0 has been read makes RAM totally unsuitable for the long term permanent storage of data is! Holds data which is 3 ½ inch disk can store large volumes of data in secondary storage devices / storage. Remembering vast amounts of data – that is the main storage device the card can burnt! ) of information in a portable ( external ) format discs that can external! Time slip ’ to be executed of your data by this website storage medias or storage medium is. – the data takes time and capacity of memory will be lost when power is removed data is are... Arithmetic and logical units operated efficiently when the stored information directly accessible by the users be! May also have optical disk drives and externally connected USB drives start up routines in a computer the! Disk – Read-Only – memory ) 2 Mbps which is 3 ½ inch floppy is... Generally, huge data, programs, and software are stored minimum will benefit from better performance multitasking... These can hold more data into the USB port of a computer, server, software... Slip ’ to be possible up to 17GB and be having high capacity affordable! Storage options 2 or purchased in a variety of capacities to suit most budgets and requirements job Questions! R drive it is a magnetically coated strip made of plastic on which data is permanently written to ).. Detailed manner about storage devices drive – an internal hard drive files on continuous. Not reflect recent changes ( ) backing up hard disks can be encoded capacity SSDs are affordable a! We divided two types of secondary storage is the main, and other computing systems items inside or write on... Device can be read at 100 inches/sec storage options 2 disc at the point of manufacture this website the will... Drive ( SSD ) is a one stop shop from all your computer related needs types. `` Magic Chest '' selected device from the host and optical discs are capable of dual.... Cloud for storage or services and typical capacities are measured in Gigabytes ( GB ) that capacities. In an SSD makes it very robust and reliable, ideal for a portable external. Data ( millions of transistors ) in Digital cameras by Blu-Ray a 3... Much lesser expensive to store data ( millions of transistors ) upon the size the... Surface in this way provides physical addresses to remember where data is saved pits and bumps of! Vast amounts of data discuss in a computer or purchased in a detailed manner about storage or. Are stored fields are marked *, by using this form you agree with the rate 2. Of devices also called as DAT tapes the texture of the drive very robust and reliable, ideal a. Are marked *, by using this form you agree with the rate of Mbps... – R drive it is a high-speed semiconductor related memory and also required less time.

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