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E0001 Computers in Engineering Secondary storage
Readings zShelly 1999 - Chapter 6 zShelly 1997 - Chapter 5 zShelly 1995 - Chapter 6 zMeyer 1997 - Chapter 2B zMeyer 1995 - Chapter 2B
zFloppy disks zHard disks zOptical discs zMagnetic Tape Types of Secondary Storage
Tracks and Sectors
Floppy Disk Capacity z3 1/2 inch ydouble sided; double density - 720kB ydouble sided ; high density - 1.44MB z5 1/4 inch ydouble sided; double density - 360kB ydouble sided ; high density - 1.2kB
Storage terms zkilobyte - KB - 1000 bytes zmegabyte - MB - 1000 000 bytes zgigabyte - GB - 1 000 000 000 bytes zterrabyte - TB - 1000 000 000 000 bytes
Care of disks
How a disk drive works z360 revolutions per minute zread-write heads zaccess arm zseek and search operation zaccess time
How data is stored
Hard disks zinternal disks zhard disk cartridges zhard disk packs
Performance Enhancements zdisk caching zdata compression and decompression zRAIDS - redundant arrays of inexpensive disks (RAIDs)
Optical discs z650 MB of data zlaser beam zthree kinds yCD-ROM yCD-R yerasable optical discs
Magnetic Tape zStreamers ycartridge unit ydigital audiotape (DAT) zReels
Chapter 6 Storage and Multimedia
STORAGE MEDIA & STORAGE DEVICES BASIC TERMS: Recording or saving data future use. Store/Save device that holds the data or information. Storage Media.
Hard Disks Low-level format- organizes both sides of each platter into tracks and sectors to define where items will be stored on the disk. Partitioning:
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.
6 Secondary Storage.
Chapter 8 Secondary Storage.
10/5: Data storage concepts What is data storage? Types of storage –magnetic, optical, magneto-optical, solid state Storage characteristics Magnetic storage:
McGraw-Hill Technology Education © 2006 by the McGraw-Hill Companies, Inc. All rights reserved. 88 CHAPTER SECONDARY STORAGE.
Secondary Storage Input Output Processing Internal Memory.
CY1001 Introduction to Computer Systems Storage Devices
McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 8 Secondary Storage.
Storage Devices Powered by DeSiaMore1. Contents Storage Primary Secondary Access Method Floppy disk Hard disk Optical disks Magnetic media Powered by.
Computer Studies Today Chapter 18 1 »Two main types of secondary storage devices: –Magnetic storage devices –Optical storage devices.
Professor Michael J. Losacco CIS 1150 – Introduction to Computer Information Systems Secondary Storage Chapter 7.
Topics Floppies Hard disks Removable DAT Drives Microdrives Formatting tracks and sectors.
1 Disks Introduction ***-. 2 Disks: summary / overview / abstract The following gives an introduction to external memory for computers, focusing mainly.
Lesson 9 Types of Storage Devices.
Welcome to CMPE003 Personal Computers: Hardware and Software Dr. Chane Fullmer Fall 2002 UC Santa Cruz.
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