Windows NT 4.0Windows NT 4.0

NT ArchitectureNT Architecture

Hardware

HAL

Kernel

Executive Services

Kernelmode

Usermode

securityWin32

DOS/Win16 VDM

OS/2

POSIX

Executive ServicesExecutive Services• I/O Manager

– cache manager

– file systems

– network drivers

– device drivers

• Object Manager

• Security Reference Monitor

• Process Manager

• Local Procedure Call Facility

• Virtual Memory Manager

OverviewOverview• Stable and secure (C-2–level) 32-bit OS

– multitasking, multithread

– preemptive, not cooperative

– protected mode only

– configuration in registry

• Windows 95 GUI but– HAL, not plug and play

– HCL important

– Poor laptop support

• Networking– NetWare client and login script support

– Enhanced metafile (EMF) spooling for improved over-the-network printing speed

– Support for 15 network protocols

– Peer-to-peer web, gopher and FTP server capabilities (no telnet)

– Client software for both Telnet and FTP services

NT tourNT tour• Basics

– taskbar, start and explorer

– shortcuts, desktop, icons

• Control Panel– add/remove programs

– display customization

– printers, modem

– network

– services

• My computer (System)– dial-up networking

– disk drives

• Others

Administrative toolsAdministrative tools• User Manager

– account policy (password and accounts)– user rights (rights to groups)

– user properties • Performance Monitor• Event Viewer• Internet Service Manager (PWS)• Disk Administrator• Remote Access Admin• File and directory permissions

– right-click file/dir, properties, security

– basic and special access • Others• tracert (trace route) and netstat (active connections)• dual boot: boot.ini (see example)

Dual boot exampleDual boot example• Components

– multi, disk, rdisk and partition

– rdisk and partition go from 0-n

– other operating systems

• Boot.ini example[boot loader]

timeout=15

default=multi(0)disk(0)rdisk(1)partition(1)\WINNT

[operating systems]

multi(0)disk(0)rdisk(1)partition(1)\WINNT="Windows

NT Workstation Version 4.00"

C:\="Microsoft Windows 95"

multi(0)disk(0)rdisk(1)partition(1)\WINNT="Windows

NT Workstation Version 4.00 [VGA mode]" /basevideo /sos