PC 102 A OS Technologies

1
PC 102 A OS Technologies

• Review Chap 15

2
Spheres of Control
Operating System Software
Logical
CMOS ESCD BIOS
Physical/Hardware
Firmware
Physical
3
Basic Functions

• Input / Output
• Local, Dialup, LAN/WAN
• Processing
• Storage

4
Specific Management Functional Areas

• Who - Security Management
• When - Accounting Management
• What - Fault Management
• How - Performance Management

Where - Configuration Management
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Microsoft Disk Operating System
Microsoft Disk Operating System
config.sys
autoexec.bat
Basic Input Output System
Hardware Substrate
6
Windows 3.X Operating Environment
config.sys
autoexec.bat
Basic Input Output System
Hardware Substrate
7
Windows 95 Architecture
Applications
Registry
User Interface
Windows 95 Core
VMMngr
IFSMngr
ConfigMngr
Device Drivers
Basic Input Output System
Hardware Substrate
8
Windows 98 Architecture
User Interface
Windows 98 Core
VMMngr
IFSMngr
ConfigMngr
WDM
Device Drivers
Basic Input Output System
Hardware Substrate
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DOS Syntax
COMMAND /parameters source destination
/parameters
dir /?
dir .sys /s
format c /s
copy c\. a\. /v
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A Typical Boot Disk
System files (for a bootable diskette)

• Utilities
• attrib.exe
• debug.exe
• deltree.exe
• format.com
• fdisk.exe
• mem.exe
• sys.com
• xcopy.exe

• Drivers -
• mscdex.exe
• emm386.exe
• himem.sys

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A DOS Installation

• Physically prepare the storage medium
• Partition and activate
• Format (with system files)
• Create file directory system
• Configure OS environment
• Load system software
• Load application software
• Configure OS environment

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Minimal ATAPI Configuration Files

• Config.sys
• devicehimem.sys
• deviceoakcdrom.sys /dmscd01
• Autoexec.bat
• mscdex /dmscd01

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Contents of minimal boot

• Utilities
• delpart.com
• format.com
• fdisk.exe
• Drivers
• himem.sys
• mscdex.exe
• oakcdrom.sys (any ATAPI driver)

Config Files config.sys autoexec.bat
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An Installation Procedure

• Create bootable microdiskette
• Copy utilities from source files
• Copy drivers from source files
• Create system configuration files
• Reboot system from boot diskette
• Confirm OS version, system date time, access to
  storage subsystems like CDROM
• Prepare HDD medium for system installation
• Locate SETUP.COM on Win98 CDROM
• Install the operating system

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To be continued