Media. Media Compact Disk A Compact Disc (CD) is an optical disc used to store digital data, originally developed for storing digital audio. The CD, introduced.

Slides:

Advertisements

Similar presentations

Storage Devices Primary storage: is the storage provided

Advertisements

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

Lesson 3: Working with Storage Systems

CP1610: Introduction to Computer Components Archival Storage Devices.

Section 5a Types of Storage Devices.

Data Storage From By: Josh & Michael. Hard Drive disc 1960 Stores and retrieves digital data from a planar magnetic surface. It changed what.

Secondary Storage Chapter 8 McGraw-Hill/Irwin

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

Data Storage Lecture 3 CSCI 1405, CSCI 1301 Introduction to Computer Science Fall 2009.

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.

Portable Memory External Hard drives.

Storage Devices Momina.

Storage Devices and Media

Storage and Multimedia: The Facts and More Chapter 6.

Chapter 1.1. FDD ( Floppy Disk Drive) Needs a data cable for connection Has two 34-pin drive connectors and one 34-pin connector for the drive controller.

Computers Storage, storage units & accessing R. S., Elektronika,

Storage device.

Chapter 8 Secondary Storage.

3.1 Storage. Overview Compare the following storage devices in terms of storage capacity, cost, speed of data retrieval and suitability for specific purposes:

1 Introduction to Computers Day 5. 2 Magnetic Tapes Very popular with mainframe computers Storage density is expressed in ‘bytes per inch’ (bpi) or character.

What is Data Storage? ‘Storing’ data, we mean putting the data in a known place. ‘ Writing ’ data or ‘ saving ’ data are other ways of saying ‘storing’

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

Standard Grade Computing STORAGE DEVICES CHAPTER 18 COMPUTER STUDIES Standard Grade.

 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.

Distinguish between primary and secondary storage.

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.

Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies,

Question 1 To start up, a computer locates

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 4: Business Hardware Oz (5 th edition). Storage Media Data an programs must be stored on nonvolatile medium –Data is retained even when not powered.

IT- 101 Introduction to Information Technology Lecture #9.

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

CMPTR Chapter 2 – Part 2 (Storage). Storage – Punch Cards Player Piano Roll Punch Cards were used before disk drives.

Computers in the real world Objectives Explain the need for secondary storage devices Understand the three main storage types – Optical – Magnetic – Solid.

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

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

Computer memory. Bits and bytes  Data can be stored and measured in bytes  One bytes can contains 8 bytes  A bits can only be 0 or 1  A series of.

Raymond Washington Secondary Storage Chapter 8. Traditional Floppy Disk The Traditional Floppy Disk is the 1.44 MB 3 1/2 - inch disk. They came out about.

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.

By:Billy Nguyen Teacher: Luce. Introduction Within technological terms, storage mainly refers and relates to computer devices that keep or retains information.

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

1 CP586 © Peter Lo 2003 Multimedia Communication Multimedia Storage.

Overview of Physical Storage Media

8 SECONDARY STORAGE CHAPTER

Storing data – Storage devices and media. What is a storage device?  A storage device is any device used in a computer to store information.  A 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 DEVICES. Agenda of Today’s Lecture  Introduction to Hardware  Types of hardware devices  Storage Devices  Secondary Storage devices.

Memory and Storage Computer Technology K. Steere.

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

Storage Devices Primary storage: is the storage provided by memory in a computer system Secondary storage: is storage provided by peripheral devices other.

Computers - The Journey Inside continues…

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

Magnetic drum memory Invented all the way back in 1932 (in Austria), it was widely used in the 1950s and 60s as the main working memory of computers. In.

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.

Secondary Storage – 1980’s 5 ¼” Floppy Drive – very low storage capacity maxing out at 1.2 Mb Mid-1980’s – 1990’s 3 ½” Floppy Drive – low storage.

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

What do you mean by external storage devices? External storage devices are the devices that temporarily store information for transporting from computer.

Engr: Sajida Introduction to computing Optical storage The storage devices which use laser to read data from or write data to the reflective surface store.

Part B Computer Storage

Secondary Storage Devices

A PRESENTATION BY: VIRAT SINGH 7-C

Computer Storage.

Presentation transcript:

Media

Media Compact Disk A Compact Disc (CD) is an optical disc used to store digital data, originally developed for storing digital audio. The CD, introduced in 1982, remains the standard playback format for commercial audio recordings as of mid An audio compact disc consists of one or more stereo tracks stored using 16-bit PCM coding at a sampling rate of 44.1 kHz. Standard compact discs have a diameter of 120 mm or 80 mm. The 120 mm discs can hold approximately 80 minutes of audio. The 80 mm discs, sometimes used for CD singles, hold approximately 20 minutes of audio.

Media Compact Disk Compact disc technology was later adapted for use as a data storage device, known as a CD-ROM, (CD-R) and to include record- once and re-writable media (CD-RW). CD-ROMs and CD-Rs remain widely used technologies in the personal-computer industry as of The CD and its extensions have been extremely successful: in 2004, the annual worldwide sales of CD-Audio, CD-ROM, and CD-R reached about 30 billion discs

Media MiniDisc A MiniDisc (MD) is a magneto-optical disc-based data storage device initially intended for storage of up to 80 minutes of digitized audio. The technology was announced by Sony in 1991 and introduced January 12, 1992, and is capable of storing any kind of binary data. Minidiscs are popular in Japan as a digital upgrade to cassette tapes, but have not been as popular in the United States despite multiple marketing efforts by Sony. Minidiscs were also somewhat popular for a time in the United Kingdom between 1998 and 2001, when a selection of Minidisc albums were available alongside CD and Cassette albums. Minidiscs are now primarily used for recording.

Media DVD DVD (also known as "Digital Versatile Disc“) is an optical disc storage media format that can be used for data storage, including movies with high video and sound quality. DVDs resemble compact discs as their physical dimensions are the same (120 mm (4.72 inches) or occasionally 80 mm (3.15 inches) in diameter) but they are encoded in a different format and at a much higher density.

Media DVD Physical SizeSingle Layer Capacity Dual/Double Layer Capacity 12 cm, Single Sided4.7 GB8.5 GB 12 cm, double sided9.4 GB17 GB 8 cm, single sided1.4 GB2.6 GB 8 cm, double sided2.8 GB5.2 GB

Media DVD Video DVD-Video discs require a DVD-drive and an MPEG-2 decoder (e.g. a DVD-player, or a DVD computer drive with a software DVD player). Commercial DVD movies are encoded using a combination of MPEG-2 compressed video and audio of varying formats. Typical data rates for DVD movies range from 3–10 Mbit/s and the bit rate is usually adaptive. The typical video resolution for an NTSC disc is 720 × 480, PAL disc is 720 × 576.

Media DVD Video The specifications for video files on a DVD can be any of the following: All MPEG video must be 25 frames per second on PAL DVDs. On NTSC DVDs MPEG-2 video can be either frames per second or frames per second, MPEG-1 video can only be frames per second.

Media USB flash drives USB flash drives are flash memory data storage devices integrated with a USB interface. They are typically small, lightweight, removable and rewritable. Memory capacity typically ranges from 1 megabytes up to 64 gigabytes. There are versions which use FireWire as well as USB, though these are less common.

Media USB flash drives USB flash drives have several advantages over other portable storage devices, particularly the floppy disk. They are generally faster, hold more data, and are considered more reliable (due to their lack of moving parts) than floppy disks. Most flash drives are active only when powered by a USB computer connection, and require no other external power source or battery power source; they are powered using the limited supply afforded by the USB connection. To access the data stored in a flash drive, the flash drive must be connected to a computer.

Media Tape A tape drive, also known as a streamer, is a data storage device that reads and writes data stored on a magnetic tape It is typically used for archival storage of data stored on hard drives. Tape media generally has a favorable unit cost and long archival stability. Instead of allowing random-access, tape drives only allow for sequential-access of data. Tape drive must spend a considerable amount of time winding tape between reels to read any one particular piece of data. As a result, tape drives have very slow average seek times. Despite the slow seek time, tapes drives can stream data to tape very quickly. For example, modern drives can reach continuous data transfer rates of up to 80 MB/s, which is as fast as most 10,000 rpm hard disks.

Media Tape Tape drives can be connected to a computer with SCSI, parallel port,USB, FireWire or other interfaces. Tape drives can range in capacity from a few megabytes to upwards of 800 GB. Tape drives can be found inside autoloaders and tape libraries which assist in loading, unloading and storing tapes. In the 1980s some forms of tape drives were used as inexpensive alternatives to disk drives, examples include the ZX Microdrive and Rotronics Wafadrive.

Media