ذخيره کننده هاي قابل حمل با ظرفيت بالا

Slides:



Advertisements
Similar presentations
Storage Devices Primary storage: is the storage provided
Advertisements

88 CHAPTER SECONDARY STORAGE. © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 8-2 Competencies Distinguish between primary & secondary storage.
Introduction to Storage Devices
Chapter 4 Storing Information in a Computer Peter Nortons Introduction to Computers.
10/5: Data storage concepts What is data storage? Types of storage –magnetic, optical, magneto-optical, solid state Storage characteristics Magnetic storage:
Secondary Storage Input Output Processing Internal Memory.
Chapter 4 – Page 1QM-130Dr. Sulaiman Al-Rafee Chapter 4 – Storage Chapter Summary Properties of Storage Systems Magnetic Disks Optical Disks Other types.
Term Project Grade 9 Section B Due december 18 Find and research one Emerging technology not studied in class. It can be a prototype or already available.
Lesson 9 Types of Storage Devices.
Types Of Storage Device
Computer Memory/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.
Lesson 3: Working with Storage Systems
Computer 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.
Storage Media and Devices Ted 510 Thom Piejko Begin.
Storage Devices and Media
3.1 Storage. Overview Compare the following storage devices in terms of storage capacity, cost, speed of data retrieval and suitability for specific purposes:
Chapter 3 Storage Prepared by: Mrs. Hanan AL- Asmari 1.
Standard Grade Computing STORAGE DEVICES CHAPTER 18 COMPUTER STUDIES Standard Grade.
SECONDARY STORAGE DEVICES. MAGNETIC TAPE Data tape that stores large amounts of information that can only accessed sequentially. Commonly used for off-site.
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.
Edited By :Asma AlOsaimi
Information Technology Storage Devices Prof. Adnan Khalid.
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.
Storing Data: Electronic Filing Cabinets What You Will Learn Difference between memory and storage How storage media are categorized Measuring a storage.
STORAGE IN COMPUTER By- Upendra Sharma. STORAGE DEVICE We can use storage device to save data in computer. It is divided in two parts- 1. Primary memory.
OCR GCSE Computing Chapter 2: Secondary Storage. Chapter 2: Secondary storage Computers are able to process input data and output the results of that.
Lecture No 11 Storage Devices
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.
Primary Storage: Memory
8 SECONDARY STORAGE CHAPTER
Data Storage. 3 types of storage to remember ROM RAM Secondary or backing storage.
Storage Devices Magnetic Storage Optical Storage Digital Storage.
OCR GCSE Computing © Hodder Education 2013 Slide 1 OCR GCSE Computing Chapter 2: Secondary Storage.
Storage Devices Primary storage: is the storage provided by memory in a computer system Secondary storage: is storage provided by peripheral devices other.
Allow computers to store programs and information for use at a later date Storage Devices.
Computers - The Journey Inside continues…
“Read Only Memory” a class of storage media used in computers and other electronic devices. This tells the computer how to load the operating system.
A+ Second Edition Genetic Computer School Lesson 5 Storage Devices.
STORAGE DEVICES Introduction Comparision Storage Hierarchy Slide 1.
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.
Your Interactive Guide to the Digital World Discovering Computers 2012 Edited By :Asma AlOsaimi.
Secondary Storage. WHAT IS SECONDARY STORAGE  SECONDARY STORAGE IS THE STORAGE THAT IS NON- VOLATILE. RAM IS VOLATILE AND SHORT TERM AND FORGETS EVERYTHING.
Learning Outcomes At the end of this lesson, students should be able to: Define storage State the types and functions of storage – primary storage RAM.
MAC OS – Unit A Page:14-15 Understand Storage Media.
4-1 Copyright Prentice-Hall, Inc Disks & Tape Backup Units CHAPTER4.
COMPUTER PARTS INSIDE - OUTSIDE. Computer Parts There are many parts that work together to make a computer work.
Digital Storage Digital Storage Ann Ware ~
Computer Note.
MEMORY BYTES. MEMORY BYTES MEMORY MEMORY OUR Internal External.
Backing Store.
Choosing the best storage method
Primary and Secondary Storage Explained
Basic computer equipment, programs and burning CD’s
Created by Malcolm Fowler
Chapter Seven Types of Storage.
HIT 191Assignment1 Wei Liang
Introduction to Storage Devices
Chapter 3 – Storage Devices and Media
Mass storage (secondary storage)
Компьютер.
Digital Storage Digital Storage Ann Ware ~
STORAGE – 3 TIERS Key Revision Points.
Lesson 9 Types of Storage Devices.
A PRESENTATION BY: VIRAT SINGH 7-C
CHAPTER 10 Memory and Storage
Computer Storage.
Presentation transcript:

ذخيره کننده هاي قابل حمل با ظرفيت بالا فصل يازدهم

مقايسه تکنولوژي هاي ديسک، نوار و حافظه فلاش ديسک مغناطيسي دسترسي تصادفي به فايلها قيمت نسبتا مناسب در کپي تعداد کم فايل سريع اما براي فايلها با تعداد زياد کند نوار تيپ مغناطيسي دسترسي ترتيبي قيمت نسبتا پايين کاربرد آنها بيشتر براي پشتيبان گيري حافظه فلاش از تراشه حافظه خاص تشکيل شده اند قابليت حمل آسان و اندازه و قيمت آنها به ترتيب پايين و بالا

گذري بر ابزارهاي ذخيره سازي قابل حمل ديسکي که استفاده از آن براي انتقال اطلاعات بدون نياز به انتقال کامپيوتر صورت مي گيرد (Removable) مانند ديسک فلاپي يا LS-120 SD-Ram, Micro Ram,… انواع آن درايورهاي فلاپي نوري با ظرفيت بالا (حدود 21 مگابايت ظرفيت دارند) درايوهاي سوپر ديسک LS-120: مانند فلاپي با حجم 120 مکابايت درايوهاي ZIP: رابطهاي آن معمولا شامل USB-ATA-SCSI-PCMCIA و اندازه 100 مگا به بالا ظرفيت دارد. درايوهاي JAZ: رابطهاي آن معمولا شامل USB-ATA-SCSI-PCMCIA و اندازه 1 گيگا به بالا ظرفيت دارد مقايسه درايوهاي مغناطيسي قابل حمل با ظرفيت بالا قيمت به ازاي ظرفيت زمان دستيابي درايو قابليت سازگاري حمل ظرفيت ذخيره داخلي يا خارجي قابليت بوت شدن از درايو

LS-120 and ZIP drive

SD Ram- Micro Ram

JAZ Drive

Floptical

درايوهاي نوري مغناطيسي درايو نوري مغناطيسي به صورت تجاري از سال 1985 به بازار آمد دو مدل : مدل 3.5 اينچ با 650 مگابايت ظرفيت مدل 5.25 اينچ با 5 گيگا بايت ظرفيت

کارتهاي فلش Compact Flash Smart Media ATA PC Cards (PCMCIA) Memory Stick Micro Flash

Compact Flash

Smart Media

Memory Stick

PCMCIA

مقايسه نهايي

تيپ درايوها PIC DAT (Digital Audio Tape) ADR(Advanced Digital Recording)

PIC

DAT (Digital Audio Tape)

ADR(Advanced Digital Recording)

BY: Ghasem Mohammadi

Hard Disk BY: Ghasem Mohammadi

BY: Ghasem Mohammadi

Write head Medium Random particles Current flow (no data stored) (write operation) Organized particles (represent data) BY: Ghasem Mohammadi

As the medium rotates, the head writes the data. BY: Ghasem Mohammadi

Hard Disk Fragmentation One file can end up fragmented (scattered) over the disk surface. BY: Ghasem Mohammadi

BY: Ghasem Mohammadi

BY: Ghasem Mohammadi

تکنولوژي ذخيره سازي نوري فصل 12

مطالب فصل نور ليزر و تکنولوژي آن ساختار داخلي درايوهاي CD مشخصات کاربردي درايوهاي CD-ROM درايوهاي CD-RW درايوهايDVD

نور ليزر و تکنولوژي آن تکنولوژي نوري به سه روش استفاده مي شود CD-R Optical Servo در فلاپي درايوهاي نوري براي حرکت دقيق هد گرم کردن سطح ديسک توسط نور ليزر در سي دي ها نوري (Optical)از نور ليزر زرد يا قرمز براي نوشتن يا خواندن اطلاعات استفاده ميشود. CD-R CD-RW

ساختار داخلي درايوهاي CD ديود ليزر با نور زرد موتور سروو آينه و تمرکز دهنده نور برگشتي از سطح ديسک موتور چرخاننده ديسک موتور معمولي براي باز و بسته کردن سيني سي دي بورد کنترلر کانکتورهاي اتصال

مشخصات کاربردي درايوهاي CD-ROM نرخ انتقال اطلاعات زمان دستيابي اندازه بافر و کش نوع اينترفيس : SCSI، IDE/ATAPI، پورت موازي و پورت USB مکانيزم بازکردن يا گرفتن CD: Tray و Slot و CAddy درايو داخلي يا خارجي

درايوهاي CD-RW

درايوهايDVD مخفف Digital Versatile Disk يا Digital Video Disk از 4.7 گيگا بايت تا 17 گيگا بايت انواع آنها يک رويه و يک لايه4.5 گيگا يک رويه و دو لايه 8.5 گيگا دو رويه و يک لايه 9.4 گيگا دورويه و دو لايه 17 گيگا سرعت در DVD

BY: Ghasem Mohammadi

1 BY: Ghasem Mohammadi

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.