1 CP586 © Peter Lo 2003 Multimedia Communication Multimedia Storage.

Slides:

Advertisements

Similar presentations

Introduction to Storage Devices

Advertisements

Secondary Storage Input Output Processing Internal Memory.

Storage Devices Powered by DeSiaMore1. Contents Storage Primary Secondary Access Method Floppy disk Hard disk Optical disks Magnetic media Powered by.

Storage Media. Objectives You will be able to: –Mention the most common types of storage media Magnetic Storage Optical.

Lesson 9 Types of Storage Devices.

Hard Disk CD-ROM.

Types Of Storage Device

Computing ESSENTIALS CHAPTER Copyright 2003 The McGraw-Hill Companies, Inc.Copyright 2003 The McGraw-Hill Companies, Inc Secondary Storage computing.

GRAP 3175 Computer Applications for Drafting Unit II Computer Hardware.

CP1610: Introduction to Computer Components Archival Storage Devices.

Storage Devices and Media The Kingsway School. Backing Storage Backing storage is used to keep data or programs. Different circumstances require different.

Section 5a Types of Storage Devices.

Secondary Storage Chapter 8 McGraw-Hill/Irwin

Adapted from CTAE Resource Network – Used with permission. PROFITT Curriculum Basic Computer.

Understanding Computers Ch.4

1 Chapter 6 Storage and Multimedia: The Facts and More.

McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 8 Secondary Storage.

Secondary Storage Chapter Distinguish between primary and secondary storage Compare internal and external hard disks Describe ways to improve hard-disk.

CHAPTER 6 66 Secondary Storage. 6 © The McGraw-Hill Companies, Inc Objectives 1.Floppy and hard disks 2.Cartridges and disk packs 3.Performance.

1 Introduction to Computers Prof. Sokol Computer and Information Science Brooklyn College.

Backing Storage Chapter 18.

Storage Devices and Media

Lecture # 12 Optical Storage Devices Flowcharts

Storage and Multimedia: The Facts and More Chapter 6.

Storage device.

Chapter 8 Secondary Storage.

AS Level ICT Selection and use of storage requirements, media, and devices: Devices and media.

Chapter 3 Storage Prepared by: Mrs. Hanan AL- Asmari 1.

Storage Media Asad M. Nafees. Outline DVD/DVD-R/DVD+R/DVD-RW/DVD+RW CD/CD-R/CDRW Flash Disk Portable Hard Drive.

PROCESSORBacking Storage Main Memory Output Devices Input Devices Backing Storage.

 Introduction Introduction  Types of Secondary storage devices Types of Secondary storage devices  Floppy Disks Floppy Disks  Hard Disks Hard Disks.

Storage Devices Presented by: Saba Mudassar. Storage Devices Primary storage: is the storage provided by memory in a computer system e.g. ROM/RAM. Secondary.

Understanding Computers

Discovering Computers Fundamentals, Third Edition CGS 1000 Introduction to Computers and Technology Fall 2006.

ASHIMA KALRA.  Hard disks.Hard disks.  Floppy disks.Floppy disks.  CD ROMs.CD ROMs.  DVDs.DVDs.

Presented by: Manjeet Singh. Secondary Storage Devices Magnetic media Tape Disks Optical Media Compact Discs CD-R, WORM (Write Once, Read Many) CD-RW.

Information Technology Storage Devices Prof. Adnan Khalid.

McGraw-Hill/Irwin Copyright © 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 7 Secondary Storage.

Computer Systems I’m ONLY a machine! Standard Grade Revision.

SECONDARY STORAGE Secondary storage devices are used to save, to back up, and to transport files Over the past several years, data storage capacity has.

1 Chapter 3 Understanding Computers, 11 th Edition Storage Medium The physical material on which a computer keeps data, instructions and information. Can.

CHAPTER 7 Storage Katie Moody Storage Storage holds data, instructions, and information for future use. Every computer uses storage to hold software.

INFO1 – Practical problem solving in the digital world

Data Storage What is storage? Storage refers to the media and methods used to keep information available for later use. Some things will be needed right.

Storing Data: Electronic Filing Cabinets What You Will Learn Difference between memory and storage How storage media are categorized Measuring a storage.

Introduction to Computers

Secondary Storage Chapter 8 Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved. 8-1.

GCSE Information Technology Storing data Data storage devices can be divided into 2 main categories: Backing storage is used to store programs and data.

AS Computing Storage devices. Primary storage  A computer’s main memory (RAM) is known as primary memory.  Primary memory is volatile; when the computer.

1 3 Computing System Fundamentals 3.2 Computer Architecture.

 Secondary storage (or external memory) - is not directly accessible by the CPU. Secondary storage does not loose the data when the device is powered.

TheTeacher Computing Data Storage Computing. TheTeacher Computing Primary Storage One of the fundamental properties of a computer is that it can store.

8 SECONDARY STORAGE CHAPTER

Data Storage. 3 types of storage to remember ROM RAM Secondary or backing storage.

COM113 Introduction to Computing Storage. Optical Discs What is a CD-ROM?  Compact disc read-only memory  Cannot erase or modify contents  Typically.

Secondary Storage Chapter 8 McGraw-HillCopyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved.

Chapter 7 Storage. What is storage? Holds data, instructions, and information for future use Storage medium is physical material used for storage Also.

Storage Devices. Storage Store information Storage involve two processes: Writing or recording the data so it can be found later for use, Reading the.

Storage of Data Instructions and data are held in main memory which is divided into millions of addressable storage.

Tuesday 19 th October, 2015 Information Technology.

STORAGE DEVICES Introduction Comparision Storage Hierarchy Slide 1.

3 Storage devices and media Backing store devices.

Storage Devices Primary storage: is the storage provided by memory in a computer system e.g. ROM/RAM. Secondary storage: is storage provided by peripheral.

Storage devices 1. Storage Storage device : stores data and programs permanently its retained after the power is turned off. The most common type of storage.

MAC OS – Unit A Page:14-15 Understand Storage Media.

STORAGE DEVICES Storage devices are categorized by the method they use to store files.

Copyright © 2003 Prentice Hall, Inc 1 Chapter 4 Storing Data: Electronic Filing Cabinets NEXT SLIDE.

Reference: Chp 6 Introduction to Computers by Peter Norton

Nat 4/5 Computing Science Input, Output and Backing Storage

Computer Storage.

Presentation transcript:

1 CP586 © Peter Lo 2003 Multimedia Communication Multimedia Storage

CP586 © Peter Lo Types of Media Magnetic Media Suitable for dynamic data that often changes. Used in most cheap portable floppy disks an hard disk drives. Optical Media Optical media such as the CD has a long life span and high storage capacity. Fast data access times. Analogue Media Videodisk is the general term for disks used to store analogue data.

CP586 © Peter Lo The Evolution of Storage Storage began as a series of punch cards. Eventually secondary storage devices and hard disks were required to store data. Magnetic media was used to store data. Advances in optical technology lead to the development of CD ROM and DVD technology.

CP586 © Peter Lo Compact Disk A CD is a polished metal platter capable of storing digital information and is used in the music industry to store digital recordings. CD’s are read-only, which means that once the data has been recorded onto them, they can only be read, or played. The standard for most CD-ROMs is 24 or 32 speed (24 times per second).

CP586 © Peter Lo Compact Disk Read Only Memory (CD ROM) A CD ROM can store up to 1GB, although the most common size is approx 630MB. A single CD-ROM has the storage capacity of 700 floppy disks, enough memory to store about 300,000 lines of text.

CP586 © Peter Lo DVD Short for digital versatile disc or digital video disc, a new type of optical technology that holds a minimum of 4.7GB (gigabytes), enough for a full-length movie. Many experts believe that DVD disks, called DVD-ROMs, will eventually replace CD-ROMs, as well as VHS video cassettes and laser discs.

CP586 © Peter Lo DVD Specifications The DVD specification supports disks with capacities of from 4.7GB to 17GB and access rates of 600KBps to 1.3 MBPS. DVD drives are backward-compatible with CD-ROMs. DVD players can play a CD-ROM, CD-I disks, and video CDs, as well as new DVD-ROMs. DVD is 5” or 12 cm in diameter.

CP586 © Peter Lo DVD Specifications With DVD, information is contained in pits which are about half the size of CD pits and the tracks are therefore twice as close together. DVD can store 7 to 14 times that of a CD. Up to 8 different language soundtracks and 32 different language subtitles can exist on one DVD.

CP586 © Peter Lo DVD Features Multiple camera angles. (Eg. 007) Parental Lock or rating control. Multi-aspect ratio : Letter box or wide screen. Interactive movie plots. (Eg. Blade) Multiple Soundtracks and sub titles. Additional footage and voiceovers.

CP586 © Peter Lo (Write Once Read Many Times) WORM This technology allows you to write data to a disk a single time. However, after that the data is permanent and can only be read many times. Unlike CD-ROMs, there is no single standard for WORM disks. As a result you need the same hardware to read and write.

CP586 © Peter Lo Tape A magnetically coated strip of plastic on which data can be encoded. In the computing industry tapes are primarily used for backup because information has to be accessed sequentially rather than randomly. Tape drives are now available for PC’s at a relatively inexpensive cost. (DAT)

CP586 © Peter Lo Removable Hard Disk Often HDD are enclosed in plastic or metal cartridges so that they can be removed like floppy disks. The storage capacity of a typical removable hard disk can range from 60MB to 2GB, much more than the capacity of floppy disks.

CP586 © Peter Lo Iomega Zip Drive Iomega Zip drive uses a low-cost, flexible- magnetic-media technology that gives it a decided price advantage over drives that use SyQuest and magneto-optical technology. A Zip disk is light and easy to carry. However, these disks are fairly slow and do not compare to the read performance of a CD ROM. The Zip Plus can hold 250MB.

CP586 © Peter Lo Iomega Jaz Drive A removable disk drive developed by Iomega Corporation. The Jaz drive has a 12-ms average seek time and a transfer rate of 5.5Mbps. The removable cartridges hold 1GB of data. The fast data rates and large storage capacity make it a viable alternative for backup storage as well as everyday use.