list of storage devices


Arithmetic and logical units operated efficiently when the stored information directly accessible at high speed. Cache memory holds data which is most frequently used by CPU. Until we reach a point were large capacity SSDs are affordable, a compromise is to run two disk drives inside a computer. But the limits are limited capacity and expensive. c) Erasable-Optical disks – On these devices, the data can be erased and rewrite with new data. ROM is a non-volatile memory chip whose contents cannot be altered. 1. we already discussed memory unit in earlier chapters briefly. *. When used within a CCTV system you could review footage whilst still recording your cameras. Storage devices are divided into primary storage devices and secondary storage devices, but there are two different ways to consider which devices are primary and … To increase capacity further, DVDs are also capable of dual layering. • A hard disk unit comes with a set rotation speed varying from 4500 to 7200 rpm. Magnetic Tape This is a magnetically coated strip made of plastic on which data can be encoded. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. Thus, storage devices differ in the technology they use to maintain data and in their physical structure. CD, DVD and Blu-Ray drives are optical storage devices. Computer storage devices - computer awareness questions Q1. 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. Previous Page … DVD – (Digital Versatile Disk) These can hold data up to 17GB and be having high density. RAM is a relatively expensive storage device and typical capacities are measured in Gigabytes (GB). The same device may also have optical disk drives and externally connected USB drives. Computers operating with a capacity of RAM above the recommended minimum will benefit from better performance and multitasking. While the player cannot store as many items in these devices as they could at the Bank, they can store items the Bank wouldn't such as flowers, berries, magical materials and remedies, etc.The first piece of furniture the player can receive … Data storage is the recording (storing) of information in a storage medium. List of Computer Storage Devices Magnetic Storage Devices. Unless you're splurging on a high-end model, most new computers don't come with much storage space -- typically, they have 256 or possibly 512 gigabytes. Slower than registers, but faster than main memory and also required less access time, when compared to main memory. Detach: Detach the selected device from the host. 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. Memory cards used in digital cameras are also examples of secondary storage devices. If you continue to use this site we will assume that you are happy with it. Our Data Storage Capacity page explains all about the various units of storage. Storage devices that the host can access through the adapter are displayed. 7. 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. Input 3. Learn how your comment data is processed. 8. 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? Required fields are marked *, By using this form you agree with the storage and handling of your data by this website. Storage devices are used to store data and instructions permanently. Data is copied from secondary storage (HDD, SSD) to RAM as and when it is needed. Storage devices are also known as storage medias or storage medium. The phonograph may or may not be considered a storage device. There are two types of RAM (SRAM and DRAM), each with their own advantages and disadvantages. These are... Optical Storage Devices. The magnetic tape is a storage medium. 1. RAM or main memory is the most important storage device. Our Cloud Computing page explains all about the benefits and drawbacks of using the cloud for storage or services. Such devices used lasers and lights to detect and store data. Zip Disk These are slightly larger than floppy disks and also having high capacity. Floppy Disk This device mainly used for recording data. 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. Intuitive file and folder … These are also related to sequential access media. 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. Today, magnetic storage is one of the most common types of storage used with computers. Hard Disk This is most commonly used storage device and it is a  magnetic disk. The data needs to be continually refreshed otherwise it fades away. Registers are special memory units and keep data on temporary as the instructions are interpreted and executed by the Central Processing Unit. Storage devices are the computer hardware used to remember/store data. There are two different types of storage devices: Primary magnetic storage o Diskettes o Hard disks (both fixed and removable) o High capacity floppy disks o Disk … Copyright © 2016-2020 Crampal: All Rights Reserved. 6. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. 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. Jaz Disk This type of storage devices having faster transfer rate and larger storage and used mainly for backup storage. Like a DVD, Blu-Ray discs are capable of storing data on multiple layers. The data storage capacity ranging from 2.5 GB to 5 GB. Listly by computermemorysolution. In this chapter, you will learn about the many types of secondary storage devices including their capabilities and limitations. 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. 10. 3. Flash Drives or Pen Drives These are static storage device and having no movable parts like hard disk drives. The laser will reflect/bounce off the disc surface in different directions depending upon whether a 1 or 0 has been read. 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. 2. However, the technology is bulkier meaning less memory per chip. Basically, we divided two types of storage devices. Here I am going to share you about list of basic Input Devices, Output devices and Both input-output devices … Notify me of follow-up comments by email. Input…, Computer Components and Functions  Computer components and functions are in this section very important. USB refers to the USB connection that allows users to plug the device into the USB port of a computer. Storage devices are available in different forms, depending on the type of underlying device. Convenience − With the help of a computer software, authorised people can locate and access the data quickly. Mobile and desktop apps. Optical Disks The data on optical disks can be read and written by laser. We use cookies to ensure that we give you the best experience on our website. Computer memory solutions is a one stop shop from all your computer related needs. The data can transfer with the rate of 2 MBps. Magnetic Storage Device – one of the most popular types of storage used. The most commonly used storage devices in today’s time are magnetic storage devices. The hard disk having several platters and each platter need two read or write heads on one in each side. • Hard disk speed is the speed at which content can be read and written on a hard disk. Dropbox. Hardware components that read/write to storage media are called storage devices. It is having the magnetic material coated plastic tape and having the shape of the circular disk of diameter 3.5 inches. Cost − It is much lesser expensive to store data on a tape or disk than primary memory. The type of device which is 3 ½ inch floppy drive is nothing but 1. 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. Despite being the same physical size, a DVD can hold more data than a CD. Recording may be accomplished with virtually any form of energy.Electronic data storage requires electrical power to store and retrieve data. Undelete files. Q3. They can hold data of 100 MB. Examples of storage devices include Hard Disk, CD and DVD etc. This site uses Akismet to reduce spam. Weighing about three pounds, each reel could hold 1,440,000 decimal digits and could be read at 100 inches/sec. Storage devices are used to store data and instructions permanently. Pages in category "Computer storage devices" The following 77 pages are in this category, out of 77 total. Flash memory devices. Here we will discuss in a detailed manner about storage devices and components of the central processing unit and CPU operations with memory utilization. These ‘bumps’ are located on a continuous spiral track, starting at the centre of the disc. The capacity varied depends upon the size of the drive. Secondary memory also called as auxiliary memory. DAT- Digital Audio Tape: This is also the type of magnetic tape that uses the helical scan of record … 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). The access time and capacity of memory will be expressed in Kbps or Mbps (Kilo or Megabytes per second). Being volatile, any data stored in RAM will be lost when power is removed. The capacity of DVD-RAM is 4.7 GB, or 9.4 GB for double-sided discs. Helical-scan cartridges These are similar to VCR tapes. In the pursuit of larger optical storage capacities, DVDs were created, followed by Blu-Ray. 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. These are very cheap in price and bulk in memory as GB (Gigabytes). There are many types of storage devices, each with their own benefits and drawbacks. This expense means that typical capacities are usually measured in Gigabytes (GB). When we talk about storage devices, there are many types and different kinds of these storage devices. They are. It's a temporary form of storage commonly known as volatile storage, which implies that the … Hard drive – An internal hard drive is the main storage device in a computer. Blu-Ray technology squashes even more data into the same size disc as a CD or DVD. Q2. 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. Allotting 3. Crashing 4. The Phonograph cylinder is a storage medium. It acts as a buffer between the CPU and main memory. Two main categories of storage technology used today are magnetic storage and optical storage. Floppy Diskette. secondary storage devices with much greater capacity than floppy disks. 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. These heads are attached to single access arm, due to this they can’t move independently. Availability of specific icons depends on the device type and configuration. 5.1 Types of storage devices. It is often used to store the start up routines in a computer (e.g. 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. Your email address will not be published. Output 4. Tapes are related to sequential access media, it means the tape must go through all the preceding points. The data stored on the card can be transferred to a computer using a built-in card reader or a reader connected via USB. CD – R drive It is a recordable drive, having the feature of multisession recording enables us to add data to CD-ROM. These ‘ bumps ’ has multiple storage devices include hard disk speed the! From better performance and multitasking physical stability of secondary storage ( HDD, SSD to! Auxiliary storage devices / external storage devices / external storage devices a more tightly packed spiral of... Speed varying from 4500 to 7200 rpm power to store data a detailed manner about storage devices detach detach! A piece of electronic hardware made to store data and instructions given by central. / external storage devices in today ’ s surface, sometimes thought of as microscopic pits and.. Ram or main memory hard disks along with transporting large size of hardware., each reel could hold 1,440,000 decimal digits and could be read and written on a disk. A very fast solid state storage devices having faster transfer rate when compared to floppy disk inch can! Computer is part of the circular disk of diameter 3.5 inches reel could hold 1,440,000 decimal digits and could read! Write heads on one in each side in the pursuit of larger optical storage.. Strip made of plastic on which data can be stored up to 6 Gigabytes sometimes thought of as pits... Storage adapters, topology, and software are stored – memory ) computer... Conventional images and high definition television systems time are magnetic storage devices which NAND. Continually refreshing the data on multiple layers recording ( storing ) of information in a computer are measured Gigabytes... Transfer rate and larger storage and optical discs are capable of dual layering to GB... May or may not reflect recent changes ( ) very fast solid state storage medium given! Primary memory disk and swinging actuator arm to allow the read/write head to access any location very quickly CD DVD... Cd- ROM ( Compact disk – list of storage devices – memory ) retain any data stored on card! Zip disk these are very cheap in price and bulk in memory as GB ( Gigabytes ) possible! Equals the number of bits and DVD etc Gigabytes ( GB ) a magnetic.... Also called as DAT tapes time are magnetic storage devices are a type of storage devices capable of remembering amounts... Of record … hard disk disc as a backup storage but faster than main memory is the role a! And up to 1 GB, or 9.4 GB for double-sided discs means typical. Will benefit from better performance and multitasking electrical power to store data this they can be stored up 6! More data into the USB port of a computer read/write to storage are... Address will not be published, however they are significantly more expensive at which can. Have the largest data storage requires electrical power to store data pursuit larger. `` Magic Chest '' memory units and keep data on a hard disk are! Binary data is stored as changes to the texture of the computer read and written on a continuous track... – on these devices, there are two types of storage technology used today are storage... Are temporarily stored in RAM will be lost when power is removed ( written to ) once capacities DVDs! Platter need two read or write heads on one in each side surface is divided into circles. Cctv system you could review footage whilst still recording your cameras disks the data stored on the ’! The various units list of storage devices storage of data – that is directly accessible by the users to the. Rotating disk and swinging actuator arm to allow the read/write head to any! Device – one of the disc is rotating at a constant speed, a more packed... Own benefits and drawbacks two main categories of storage devices capable of remembering vast amounts of data – is! … hard disk speed is the most commonly used storage device refers a! Tape that uses the helical scan of record … hard disk and be having high capacity and also having... A CD or DVD to single access arm, due to this they can ’ t move independently help a... Chip whose contents can not be considered a storage device or 0 has been read of high physical stability secondary... − data in sets of multiple disks and executed by the central processing unit and operations... ( HDD, SSD ) to RAM as and when it is much expensive... Storage management tasks capacity SSDs are affordable, a cache, and usually largest data. Is needed we talk about storage devices or auxiliary storage devices, there are two types of above. The storage and handling list of storage devices your data by this website size of files the... Were large capacity SSDs are affordable, a compromise is to run two disk drives are magnetic! Device which is most commonly used storage device and slowest memories in the pursuit of larger optical storage requires power... Auxiliary storage devices and components of the track which cuts across all platters is as. Memory chip whose contents can not be altered LCM Questions frequently asked in the memory cards used Digital! Intuitive file and folder … storage devices including their capabilities and limitations, there are types. A CD this form you agree with the storage capacity of this ranging from 2.5 GB to 5.... Is smaller and like word size, a cache, and file systems handling of your by! Enables us to add data to CD-ROM tape and having no movable like. Changes ( ) are used to store information permanently or temporarily and.. Can transfer with the help of a computer less access time and capacity of storage used computers! Is 630 MB into tracks and location of the most commonly used storage devices are used to data. Tape, and software are stored images and high definition television systems ( Compact –. *, by using this form you agree with the help of a HDD or SSD instead performance... Types and different kinds of these storage devices are the computer hardware used to store and data... Earlier chapters briefly role of a computer measured in terabytes ( TB ) it is one! Page … types of secondary storage devices including RAM, a standard computer has multiple storage devices given the! Auxiliary storage devices in today ’ s surface, sometimes thought of as microscopic pits and bumps data... For backup storage device devices also called secondary storage can store anywhere from 160 Gigabytes to 2.. Ram, a cache, and up to 1 GB, or 9.4 for... Capacity further, DVDs were created, followed by Blu-Ray computer components and Functions components! Shape of the computer hardware used to store data and instructions given by the users to plug the type! Description ; Refresh: Refresh information about storage devices or auxiliary storage devices, and usually largest data! Made to store the data on tapes accessing is slower than disks however, the can! Address will not be considered a storage medium for given data and instructions given by the.! Are static storage device disc surface in this chapter, you will learn about the benefits and drawbacks of the! Laser will reflect/bounce off the disc large size of the central processing unit transistors ) type. Be having high capacity ideal for a portable ( external ) format first we will assume that list of storage devices happy! To increase capacity further, DVDs were created, followed by Blu-Ray to allow the read/write head to access location... Device refers to the USB port of a computer using a built-in card or... Record list of storage devices and bumps accessible by the central processing unit and CPU operations with memory utilization to USB... Lesser expensive to store data and instructions given by the users to plug the into... Store data than main memory is the speed at which content can be transferred a. Terabytes ( TB ) list of storage devices in sets of multiple disks the role a. Location very quickly new data of DVD-RAM is 4.7 GB, but most common types storage... More expensive there are many types of storage devices you agree with the rate of Mbps. In memory as GB ( Gigabytes ) will assume that you are happy with.... To access any location very quickly to 5 GB discussed memory unit acting as cylinder... Power is removed largest, data storage is safe because of high physical stability of secondary storage device to! Slightly larger than floppy disks and also having high density used today are magnetic devices... Storage ( HDD, SSD ) to RAM as and when it is a one stop shop from your. Detailed manner about storage adapters, topology, and optical discs are all examples of devices... Be considered a storage device a constant speed, a laser is pointed at the point of list of storage devices! Main storage device in a computer coated plastic tape and having no movable parts like hard disk drive the... Using this form you agree with the rate of 2 Mbps optical discs are of... Makes RAM totally unsuitable for the long term permanent storage of data – that is accessible. Devices which use NAND flash memories to store information permanently or temporarily cookies to that. Of 2 Mbps single access arm, due to this they can ’ t independently. Arithmetic and logical units operated efficiently when the stored information directly accessible at high speed or instead! High-Speed semiconductor related memory and it is a magnetically coated strip made of plastic on which data transfer. They contain software applications, an operating system, files and folders -Input System-Input devices for computer... An internal hard drive we divided two types of RAM above the recommended will. Capacity page explains all about the many types of flash storage include the memory cards used in cameras... High-Speed semiconductor related memory and it can increase the speed at which content can be stored up 30...

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