This … You can change your ad preferences anytime. The Adobe Flash plugin is needed to view this content. If you continue browsing the site, you agree to the use of cookies on this website. • describe the principles of operation of a range of types of storage device and media including magnetic, optical and solid state • describe how these principles are applied to currently available storage solutions, such as SSDs, HDDs, USB flash memory, DVDs, CDs and Blu-ray discs • calculate the storage requirement of a file. These disks differ in many characteristics; firstly magnetic disk works by using magnetising material over the disk whereas in optical disk polycarbonate plastic is used in its construction and laser is used to store and retrieve the data. OPTICAL STORAGE By Yohniki Gordon 2. Magnetic disk is sequential access device. NOTE: ... Next - Optical Storage Devices. Next - Practice Test . You can change your ad preferences anytime. Magnetic disk: A magnetic disk is a storage device that uses a magnetization process to read, write, rewrite and access data. Hardware components that read/write to storage media are called storage devices. • More prone to errors than fixed hard drive. When an optical drive shines light into a pit, the light cannot be reflected back. Section 6: The Effects of Using ICT. Magnetic and optical storage Some devices use magnetic or optical storage. Storage devices of Computer System with examples(Magnetic , Optical Storage device and Hard Disk Drive). Definition of Magnetic Storage. Storing data : Disk Organization and I/O Computer Hardware & Trouble shooting. If you continue browsing the site, you agree to the use of cookies on this website. Disk fixed in the computer storing data, operating systems and software. Insider Information When a CD-R or RW is ‘burned’, the laser modifies the reflectivity of a dye that is sandwiched between the bottom clear layer and a top reflective layer. Now customize the name of a clipboard to store your clips. View by Category Toggle navigation. Direct Access Storage Devices (DASDs) – Magnetic Discs Hard disks (high capacity, low cost, fast) Floppy disks (low capacity, lower cost, slow) – Optical Disks CD-ROM = (Compact disc, read-only memory 3. Draw a diagram on the board that illustrates the process . Magnetic storage use different patterns of magnetization to in a magnetizable medium to store data. o megabyte (MB): 1024 kilobytes or 220 bytes ... | PowerPoint PPT presentation | free to view . c) It has high storage capacity. Disc coated with magnetic material used to store data . Light is used to aid the device in reading the data that stored. Magnetic tape Aashish Shrestha. Remove this presentation Flag as Inappropriate I Don't Like This I like this Remember as a Favorite. Magnetic tape … Discuss what can happen when writing a 1-byte file or a 513-byte file. Teaching tip Students often do not understand why random access hard drives and floppy drives are faster than sequential drives. Section 5: Data Types. Optical Storage 1. Get the plugin now. Links to Theory Units: Section 1: Types and Components of Computer Systems. How can a manufacturer make a 1-byte head? magnetic and optic based storage devices Sarab Singh. If you continue browsing the site, you agree to the use of cookies on this website. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. f) Magnetic storage devices are ; Hard disk , Floppy. Presentations. There are primarily 3 types of Magnetic Storage Devices as follows, Disk Drives: Magnetic storage… See our Privacy Policy and User Agreement for details. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Ch 17 disk storage, basic files structure, and hashing Zainab Almugbel. Optical storage makes use of a laser to shine and reflect light to read the data stored. Student at Islamia University, Bahawalpur. Tape drive is used to read and write data on tape. Two main categories of storage technology used today are magnetic storage and optical storage. Magnetic storage media uses a magnatised surface area in order to hold bits of information. To illustrate, compare the modern audio CD to the antiquated 8-track. Discuss why it can improve the performance of a system. The Magnetic disk is made of a set of circular platters. Previous - Solid State Storage Media . Do you watch movies on DVD or Blu-ray? Optical storage devices range from CD-ROMs which was established in 1982 to Flash drives which were introduced in 1999. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. If you continue browsing the site, you agree to the use of cookies on this website. Discussion point Discuss the sector size limitation. • High Storage capacity compared to optical disks. ), store digital data's zeroes and ones as magnetic fields. Section 3: Storage Devices and Media. The properties and applications of important perovskite phase mixed-metal oxides are shown in Table 1.6. Magnetic tape. Optical Storage. PowerPoint Presentation on Optical Storage. Magnetic Storage Devices Magnetic storage media and devices store data in the form of tiny magnetized dots. b) It is affected by magnetic field. Links to Theory Units: Section 1: Types and Components of Computer Systems. Storage Devices Tertiary Storage Magnetic Tape • A magnetically coated strip of plastic on which data can be encoded. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Section 2: Input and Output Devices. Current research indicates that DVD+R is more compatible with devices than the other formats. Presentation Overview Storage •Basic Units Of Data Storage •Data Access Methods Magnetic Disks •Hard Disk •Floppy Disk or Diskette •Zip Disk •Super Disk Optical Disk •CD •DVD •Blu-Ray Disk Flash Memory Storage •Solid State Drives •USB Flash Drives •Memory Cards a) Stores data optically & used laser to read/write. The hard drive only? Teaching tip A good warm-up to storage devices is to discuss the time before we could save items on disk. Back Benchers - And I Really Feel Proud of It. Serial Devices Magnetic tapes (very fast sequential access) CENG 351 2 We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Portable hard disk. Secondary Storage Devices: Magnetic Disks Optical Disks Floppy Disks Magnetic Tapes - Hard disks (high capacity, low cost, fast) Floppy disks (low capacity, ... o kilobyte (KB): 1024 or 210 bytes. Looks like you’ve clipped this slide to already. Teaching tip Students often have a hard time grasping the speed of a hard drive. Serial Devices – Magnetic tapes (very fast sequential access) CENG 351 3 Storage and Files • Storage has major implications for DBMS design! Types of Storage Devices Physical components or materials on which data is stored are called storage media. Data is stored on magnetic tape in the form of magnetic spots. Section 6: The Effects of Using ICT. An optical drive uses reflected light to read data. Use an analogy: The circumference of a hard drive platter is nearly 1 foot. In an 8-track, you often must play the entire tape before the song can be repeated. On a CD if you wish to hear song 1 over and over, you simply press repeat. The dielectric property of BaTiO 3 will be used in the application of capacitors and sensors. Hard disk. Types of Storage Devices . Magnetic field Sameer Kansal. In magnetic storage devices, data is stored on a magnetized medium. Presentation of the big external memory Luis Fernando. Section 3: Storage Devices and Media. See our Privacy Policy and User Agreement for details. Section 2: Input and Output Devices. Storage Devices and Media : The course syllabus states that you should be able to: (a) Describe the following common backing storage media and their associated devices: Fixed hard discs, Portable hard discs, Magnetic tapes, Optical backing storage media such as CDs and DVDs, CD ROM/DVD ROM, CD R/DVD R, CD RW/DVD RW, DVD RAM, Blu-ray, Solid state backing storage, Memory sticks/Pen drives, … Teaching tip Draw clustering on the board. These dots are created, read and erased using magnetic fields created by very tiny electromagnets. It is slower device than magnetic disk or optical disk. We'll describe each of the categories of devices they fall under, the general mechanics of each and their physical characteristics. • Tape is much less expensive than other storage mediums but commonly a much slower solution that is commonly used for backup. Looks like you’ve clipped this slide to already. Clipping is a handy way to collect important slides you want to go back to later. Fixed hard disk. disk, Magnetic tape etc. Magnetic tape is the oldest storage device. Storage Devices PowerPoint Presentation on: By: Rabail Asghar 2. Use: This device connects to the computer using the USB Port. Teaching tip This process is difficult for students to see. Enough content for 2 lessons in teacher PPT Covers: Describe common storage technologies such as optical, magnetic and solid state Explain the need for secondary storage Select suitable storage devices and storage media for a given application and justify their choice using characteristics such as capacity, speed, portability, durability and reliability Originally designed for OCR … Download Share Share. Magnetic Storage Devices The most common type of storage device is magnetic storage device. PPT – Magnetic Storage PowerPoint presentation | free to view - id: 728f-Yjg5Z. Teaching tip Figure 6A.2 and 6A.3 on page 227 provide illustrations of devices and the read/write process. Spend time researching the different standards. There are many different storage methods for computers and other technology. Section 4: Computer Networks . See our User Agreement and Privacy Policy. What type of storage do you use for saving your computer work? Storage devices 1. e) It doesn't use laser to read/write data. After the waste issue is brought up, then discuss the problem from the hardware issue. Now customize the name of a clipboard to store your clips. An entire set of encyclopedias, for example, can be stored on a standard 12-centimetre (4.72-inch) optical disk. A magneto-optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto-optical disc.Both 130 mm (5.25 in) and 90 mm (3.5 in) form factors exist. b) It … It begins with an analysis of the properties of materials, presentation of the postulates of quantum mechanics, and close examination of the hydrogen atom, simple molecules and bonds, and the behavior of electrons in solids and energy bands. Stores data on a plastic tape coated with a magnetic layer. Learning Objectives 1) To understand the purpose of secondary storage and to be able to identify examples of such devices. PowerPoint Presentation : Optical Storage Devices – How Optical Storage Works An optical disk is a high-capacity storage medium. # Magnetic tape # Solid state hard drive . Teaching tip The formula for the disk capacity is listed on page 232 of the text. Both are categorized under the category of secondary storage devices. Magnetic Storage. Secondary Storage Devices Two major types of secondary storage devices: 1. To store data, the disk's metal surface is covered with tiny dents (pits) and flat spots (lands), which cause light to be reflected differently. Hard disk & Optical disk (college group project), No public clipboards found for this slide. Then contrast with the simplicity of saving to disk. 2) To be able to identify the advantages and disadvantages of magnetic, solid state, and optical storage devices. 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