•T/F: Microsoft Windows is a System Software

•T/F: Database Management Systems are System Software

•T/F: Device Drivers are System Software

•Microsoft Word is an Application Software

•True or False: Operating system provides a kernel and Shell/Interface software (among other things)

•T/F: Cars do not have any Microprocessor and Cars cannot have any Operating System

•What do you mean by an Operating System (OS)

•Why do we need an Operating System

•What are the functionalities that an OS provides.

•True or False: System Software and Application software are the same.

•T/F: A Car can have OS

•What do you mean by Resource Management in OS

•What are four primary areas an operating system Operates

•What are some security enforcement features of an OS

•What do you mean by Hardware Abstraction?

•T/F: Providing Frameworks for developers to develop software without dealing with the details of hardware

•

•What are some components of an Operating System

•Service vs System Libraries

•System Software vs Application Software

•System Software vs Utility Software vs Application Software

•Types of OS interface Available?

•Is Linux Shell GUI Based?

Kill a Process

•kill PID

•kill -SIGNAL PID

•Kill –s 9 pid

•Kill -9 pid

•kill -15 PID

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Important Notes

•System Processes

•usually run

•in the background

•Use & to start

•a process to the background

•Use fg

•to bring to foreground

•Ctrl+z takes to background

Stop-Process -Name “notepad”

Stop-Process -Id 3952 -Confirm –PassThru

calc $p = Get-Process -Name “calc”

Stop-Process -InputObject $p

Get-Process | Where-Object {$_.HasExited}

Get-Process -Name “lsass” | Stop-Process

Get-Process

Get-Process winword, explorer | Format-List *

Get-Process | Where-Object {$_.WorkingSet -gt 20000000}

$A = Get-Process

$A | Get-Process | Format-Table -View priority

Get-Process pwsh -FileVersionInfo (did not work)

Get-Process SQL* -Module

Ref: Internet/Google – MS Sites

ps x

ps -e

ps aux

ps –u username

systemctl start httpd
systemctl start mariadb
systemctl restart httpd
systemctl restart mariadb

systemctl enable httpd
systemctl enable mariadb

Monitor Process in Linux

•ps

•pstree

•top

Who Monitors Processes?

•Admins

•Developers as needed

Tasks

•start, stop, restart, status, kill

•powershell.exe -noprofile -executionpolicy bypass -file .\hello.ps1

•Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Bypass -Force;

•Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted -Force;

•set-executionpolicy remotesigned

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