A+ Certification Guide Chapter 15 Troubleshooting and Maintaining Windows.
A+ Guide to Managing and Maintaining Your PC, 5eakali2/ET127/Lecture3.pdfFloppy Drives. A+ Guide to...
Transcript of A+ Guide to Managing and Maintaining Your PC, 5eakali2/ET127/Lecture3.pdfFloppy Drives. A+ Guide to...
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A+ Guide to Managing and Maintaining Your PC
Fifth Edition
Chapter 7
Floppy Drives
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2A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Floppy Drive Subsystem
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3A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Data Is Physically Stored
on a Floppy Disk
In concentric circles (tracks or cylinders)
Each track is divided into sectors
Each sector holds 512 bytes of data
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4A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Data Is Physically Stored
on a Floppy Disk
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5A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Data Is Logically Stored on
a Floppy Disk
Cluster
Smallest logical unit of space allocated to a file
On a 3½-inch high-density floppy disk, one cluster
= one sector (512 bytes)
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6A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Data Is Logically Stored on
a Floppy Disk
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7A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Boot Record
First sector of the disk
Stores basic information about how the disk is
organized
Has a bootstrap loader that can be used to boot
from the disk
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8A+ Guide to Managing and Maintaining Your PC, Fifth Edition
File Allocation Table (FAT)
Lists location of file segments (clusters) on a
disk in a one-column table
Width of each entry in the column is 12 bits
Lists how each cluster on the disk is currently
used
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9A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Root Directory Table
Lists all files and subdirectories assigned to
this table
Contains a fixed number of rows to
accommodate a predetermined number of files
and subdirectories
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10A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Important Items in the Root
Directory
Filename and extension
Time and date of creation or last update
File attributes
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11A+ Guide to Managing and Maintaining Your PC, Fifth Edition
The Data Cable
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12A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Common Error Messages
Non-system disk or disk error. Replace and
strike any key when ready.
No operating system found.
Bad or missing COMMAND.COM
Error in Config.sys line xx
Himem.sys not loaded
Missing or corrupt Himem.sys
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A+ Guide to Managing and Maintaining Your PC
Fifth Edition
Chapter 8
Understanding and Installing
Hard Drives
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14A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Hard Drive Subsystem
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15A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Types of Hard Drive Interfaces
EIDE (Enhanced IDE) 40/80 pin gray cable
SATA (small red cable for data)
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16A+ Guide to Managing and Maintaining Your PC, Fifth Edition
IDE Cabling Methods
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17A+ Guide to Managing and Maintaining Your PC, Fifth Edition
IDE Cabling Methods (continued)
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18A+ Guide to Managing and Maintaining Your PC, Fifth Edition
IDE Cabling Methods (continued)
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19A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Configuring EIDE Drives
EIDE standards support two IDE connections,
a primary and a secondary
Each connection can support up to two IDE
devices for a total of four devices on a system
Primary IDE channel, master device
Primary IDE channel, slave device
Secondary IDE channel, master device
Secondary IDE channel, slave device
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20A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Configuring EIDE Drives
(continued)
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21A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Other Interface Standards
SCSI (small computer system interface)
USB
IEEE 1394
Fibre Channel
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22A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Hard Drives Work
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23A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How Hard Drives Work (continued)
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24A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Tracks and Sectors on the Drive
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25A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Tracks and Sectors on the Drive
(continued)
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26A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Low-Level Formatting
Occurs at the factory
Process of writing sector and track markings
on the disk
Expected to last for the life of the drive
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27A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Considerations When
Purchasing a Hard DriveCapacity
Spindle speed
Technology standard
Cache or buffer size
Average seek time
Match drive to motherboard
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28A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Communicating with the Hard
Drive Controller
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29A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Hard Drive Size Limitations
Operating system Maximum size supported
DOS and Windows 9x FAT16 2.1 GB; cannot be used on hard
drives that exceed 8.4 GB
Windows NT/2000/XP FAT16 4 GB
Windows 2000/XP FAT32 32 GB
Windows 9x FAT32 137 GB
Windows 2000/XP with Service
Pack
Larger than 137 GB
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30A+ Guide to Managing and Maintaining Your PC, Fifth Edition
How a Hard Drive Is Logically
Organized to Hold Data
Steps for preparing a hard drive to hold files
Low-level format (usually done at the factory)
Partitioning the hard drive
High-level format
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31A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Hard Drive Partitions and
Logical Drives
Active partition
Primary partition
Extended partition
Logical partition
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32A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Partitions and Logical Drives
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33A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Choice of File Systems
FAT16
Supported by all Windows systems
FAT32 (and VFAT)
Supported by Windows 95 Second Edition,
Windows 98, Windows 2000, Windows XP
NTFS
Supported by Windows NT, Windows 2000,
Windows XP
Each logical drive has its own file system
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34A+ Guide to Managing and Maintaining Your PC, Fifth Edition
When to Partition a Drive
First install a new hard drive
Existing drive is giving errors
Suspect a virus has attacked the drive
Want to wipe a hard drive clean and install a
new OS
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35A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Installing a Hard Drive
1. Set jumpers or DIP switches; physically install
drive; attach power cord and data cable
2. Inform CMOS of new drive
3. If installing an OS on the drive, boot from OS setup
CD (and skip next two steps)
4. If drive is not intended to hold an OS, use Fdisk or
Disk Management to create partition(s) and divide
extended partition into logical drives
5. For second drive, use Format command or Disk
Management to high-level format each logical drive
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36A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Prepare for Installation
Read documentation
Plan drive configuration
Prepare work area and take precautions
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37A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Jumper Settings
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38A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Jumper Settings (continued)
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39A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Jumper Settings (continued)
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40A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Mounting the Drive in the Bay
(continued)
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41A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Use CMOS to Change Hard
Drive Settings
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42A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Using Fdisk to Partition a Drive
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43A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Format Each Logical Drive
After using Fdisk, you must reboot the PC
before you format the drive
Commands used to format logical drives C, D,
and E:
Format C:/S
Format D:
Format E:
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44A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Using Windows to Partition and
Format a New Drive
Boot from Window setup CD
Follow on-screen directions to install Windows on
new drive
The setup process partitions and formats new
drive before it begins Windows installation
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45A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Troubleshooting Hard Drive
InstallationsCheck CMOS setup to verify that system BIOS
recognizes large drives
Verify status of Fdisk
Verify that Format C:/S was done
Check configuration of CMOS setup
Confirm setting of DIP switches or jumpers
Check connection of power cord and data cable
Refer to Web site of manufacturer for suggestions
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46A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Binary Numbering Systems
2 values (Need by Week 8, Start Week 6)
1,0 in programming
+5v, 0v Logic level on IC Pin
All 1,0 ‘s eventually Hardware represented as software in HEX code
Hard Drives (N/S or S/N alignment)
CD’s pits (Hole, No Hole)
Laser jumps, No Jump
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47A+ Guide to Managing and Maintaining Your PC, Fifth Edition
Hex Numbering System
0-15 (Need by Week 8, Start Week 6)
Decimal - Binary – Hex Table
Addresses using 32 bits, 16 bits, 8 bits
Machine Code, HEX code, HEX file
1KB, 1MB, 1GB in binary vs. analog
Digital processing, noise 2 values vs. 10
Base 2: Binary Base 10: Decimal
Digital Analog