Operating Systems

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Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

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Hello,

I have an A/V question. I just mounted 5 LG TV's in a few offices. I terminated each end to a HDMI keystone, and the length of the HDMI run is approx. 15 - 20 ft. I'm connecting the PCs to the TVs as a third monitor. Of the 5, two are working without an issue, but i'm having issues with the other three. The OS and the graphics card is detecting the TV as a third display, but after choosing the correct input on the TV, it's still displaying "no signal". This is the case for all of the displays that aren't working.

Any advice or guidance will be helpful!
0
Learn SQL Server Core 2016
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Learn SQL Server Core 2016

This course will introduce you to SQL Server Core 2016, as well as teach you about SSMS, data tools, installation, server configuration, using Management Studio, and writing and executing queries.

Hello Powershell Experts,

I need some help generating a table to display results of a Powershell script.  The script basically checks our servers for drive space.  The code of the script is as follows:

Get-ADComputer -Filter {OperatingSystem -like '*Windows Server*'} | Select name | sort name | ForEach-Object {
    $PingTest =Test-Connection -ComputerName $_.name -Count 1 -Quiet 
        if ($PingTest -eq "True") {
            Get-WmiObject win32_logicaldisk -ComputerName $_.name -Filter "DriveType=3" -ErrorAction SilentlyContinue | `
                Select-Object `
                    @{n="Server";e={$_.SystemName}},`
                    @{n="Drive Letter";e={$_.DeviceID}},`
                    @{n="Volume Name";e={$_.VolumeName}},`
                    @{n="Total Size (GB)";e={"{0:n2}" -f($_.size/1GB)}},`
                    @{n="Free Space (GB)";e={"{0:n2}" -f($_.FreeSpace/1GB)}},`
                    @{n="Used Space (GB)";e={"{0:n2}" -f(([Int64]$_.size/1gb) - ([Int64]$_.FreeSpace/1gb))}},`
                    @{n="Percentage Used";e={"{0:P2}" -f((1-[Int64]$_.FreeSpace/[Int64]$_.Size))}} 

        }

}

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This returns the desired information in a list format.  If I add the format-table commandlet at the end, it almost gives me what I want.  Below is the code and the results:

Get-ADComputer -Filter {OperatingSystem -like '*Windows Server*'} | Select name | sort name | ForEach-Object {
    $PingTest =Test-Connection -ComputerName $_.name -Count 1 -Quiet 
        if ($PingTest -eq "True") {
            Get-WmiObject win32_logicaldisk -ComputerName $_.name -Filter "DriveType=3" -ErrorAction SilentlyContinue | `
                Select-Object `
                    @{n="Server";e={$_.SystemName}},`
                    @{n="Drive Letter";e={$_.DeviceID}},`
                    @{n="Volume Name";e={$_.VolumeName}},`
                    @{n="Total Size (GB)";e={"{0:n2}" -f($_.size/1GB)}},`
                    @{n="Free Space (GB)";e={"{0:n2}" -f($_.FreeSpace/1GB)}},`
                    @{n="Used Space (GB)";e={"{0:n2}" -f(([Int64]$_.size/1gb) - ([Int64]$_.FreeSpace/1gb))}},`
                    @{n="Percentage Used";e={"{0:P2}" -f((1-[Int64]$_.FreeSpace/[Int64]$_.Size))}} | Format-Table

        }

}

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1
Obviously by my question, all will know that I am Apple illiterate.
I have a client that has a MAC Apple computer and the password no longer works.
I have done the following:
Booted to Recovery Mode
Ran Utilities - Terminal Mode typed resetpassword
Choose user [only one user present, and it is the user I want to change the password for]
enter password for otheruser@iclod.com. [I think this may be an Apple ID]
This is where the problem occurs, The "other user" is no longer with the organization, and has no recollection of ever having created the ID. [I think that this computer was the first Apple that "other user" had anything to do with.

Is there anyway to recover  or revoke or replace the current other user@icloud.com?  Would it make sense to try wipe the computer and start over with a fresh install of the OS?  Obviously any data that may be on the computer is lost if the password cannot be reset.  Can the computer operating system be restored without knowing the information for "other user"
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We have an application that has to run on a client OS, currently running on Windows 10.  We need this to be always on.  Is there a way with VMware or some third party product to have a failover setup with Windows 10 that will failover to an identical machine with the same IP should this one go down?
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Dear Friends,

I would like to know how can I increase the space capacity of OS Drive (c:), This  is a virtual machine hosted on Open stack. I asked the service provider  he said its not possible. Is there any alternative for this situation. Log files and DB is already on other drive. Please suggest me solutions. Thanks
Please suggest me how can I deal with this situation. This is an production environment.
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i'm looking at a pc that is rather slow; it has following hardware
mobo P8H61-M with i3 -2130 cpu and  8 Gb Ram + 1 TB WD drive for OS and data
when i open taskmanager, i see lots of spikes on disk usage, cpu and ram seem rather normal
the disk shows several AVG processes - can that be the cause ? -it's AVG free btw
is Panda Free AV better ?

 - the system seems virus free, but the disk is about 60 % full -  - disk is tested with WD diag and passed !
what should i also look into?
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Change mouse cursor color from white to black on Windows 10

I spend too much time looking for my mouse, and realized it's white.

Can I change it and/or change it's size on Windows 10?

Thanks
0
Need to take a small screen capture in Windows 10

Without installing any new programs, can I take a small photo of part of the screen?

Thanks
0
I am concerned; I close to buy a Power 9 (IBM SYSTEM) to replace our AS400 (ISERIES).

This sales is through a business partner. We only need the equipment with the last OS and releases and also the last PTF for the that OS, we will transfer the information from the AS400 TO POWER 9.

My business partner says

Agnes,

This system will ship with the IBMi OS installed with the latest RS (re-spin this is a re-spin of the OS with PTF’s) level that is available at order time. This is not the latest PTF levels but it does have PTF’s already installed on the OS. The system will also ship with the latest RS level of the Program Products.  If SFNH(ME) wants to install the latest level PTF’s this also would be SFNH's(ME) responsibility, but the OS will come with some already installed.

Is this true? the equipment doesn't comes with the last PTF? so I have to pay to somebody else to apply the rest PTF's? and what about the OS release now is 7.3 have to come with that right?

Please if somebody knows about this could you please guide?

Thank you for your help
0
I need a VGA monitor for an experiment.

There is a VGA Connector on my HP ENVY dv4 laptop.  There is Intel Core i3 inside the laptop.

Is this VGA input or output?  Can I output graphics from my experiment board to this laptop monitor over VGA cable?
0
OWASP Proactive Controls
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OWASP Proactive Controls

Learn the most important control and control categories that every architect and developer should include in their projects.

This is using a IBM Storwiz v3700 with a physical server. There is a fc connection between them, and the wwn of this server is found and registered as "host" in storage. This server is using solaris v11. On IBM storage, I have provision a 100 GB LUN to this server. BTW, what should I do to format, install filesystem, and make use of this LUN.

I am new to solaris, but not suse, redhat.

Thanks in advance.
0
I have a Powershell script find multiple servers, but I wanted to see if it can't be modified to also find What the OS is, Specs of Hardware, and VM Server or Physical.

I know this may work out better with SCCM, but wanted to see if I can find it via Powershell as well.

Thank you,

$strCategory = "computer" 
$strOperatingSystem = "Windows*Server*" 
 
$objDomain = New-Object System.DirectoryServices.DirectoryEntry 
 
$objSearcher = New-Object System.DirectoryServices.DirectorySearcher 
$objSearcher.SearchRoot = $objDomain 
 
$objSearcher.Filter = ("OperatingSystem=$strOperatingSystem") 
 
$colProplist = "name" 
foreach ($i in $colPropList){$objSearcher.PropertiesToLoad.Add($i)} 
 
$colResults = $objSearcher.FindAll() 
 
foreach ($objResult in $colResults) 
    { 
    $objComputer = $objResult.Properties;  
    $objComputer.name 
    }

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1
Is there a way to stop the constant android nag to upgrade to a later version of OS, im using ver 6 and happy with it, i read somewhere that enabling developer mode would help in this respect, so far i just keep postponing the update, but will it eventually force the update?
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I was installing VMware vSphere Hypervisor onto my Hp Prolient ML310e Gen8 server. The installation went on successful but when it restarted it gave me an error of Attempting to boot from Hard Disk. Missing Operating System. I tried that several time by turning Logical drive to primary boot, but no success still.

And also does VMware esxi installer installs OS on physical drive or on logical drive ?

Can someone please help.
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Need to read up on Windows Architecture & Operating system / Win32 APIs

What can you suggest?
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I have a virtual server that the size of the C drive is not showing correctly.

The size of the C drive is 100.00 GB but Windows Explorer only shows 5.00 GB.  Also, Disk Management shows the drive as 5.00 GB in the upper window, but 104.66 GB in the Disk 0 slot.

I will attach a screenshot to help out visually.

Does anyone know how to correct this issue if the OS is seeing the wrong size?
2019-02-08_14-54-46.jpg
0
Hi Experts I need help on MySQL I have a task
#RU        CDIR       HOSTNAME       INSTANCE       DATABASE       SIZE_GB        CREATION_DATE       

The above is the columns of  csv file ,I need to write Hostname,Instance ,Database,Size_GB and creation_DATE onto the csv file.
Can you please guide how can i write a shell script on Linux OS which will talk with MySql and give the output in the above format. I would run it from the linux os /bash
For example : I know SHOW DATABASES will give me database list , But how to put the database list onto the 5th Column i.e DATABASE and like wise other next column.
Thanks in advance.
0
I have an application on a 3-meber terminal server farm that requires Windows 7 compatibility mode. All three servers are running the same version of the OS, Server2008r2, and the same arch (Don't think this was ever an option so they are all on x64). On 2 of the three terminal servers, I have the option to run in compatibility mode for Windows 7... but the third one only goes as high as Vista SP2. Any idea how to get Windows 7 to appear on the dropdown?
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How long - or on which terms - does Windows retain DiskID and other HKEY entry information for removable media such as a USB stick? Why is it not erased when the USB stick is removed and the display refreshed in RegEdit?
0
Why Diversity in Tech Matters
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Why Diversity in Tech Matters

Kesha Williams, certified professional and software developer, explores the imbalance of diversity in the world of technology -- especially when it comes to hiring women. She showcases ways she's making a difference through the Colors of STEM program.

I purchased an old Dell i3 PC where the OS had been wiped.
It has a Windows 7 Pro license sticker.

Where can I download a Windows 7 Pro (32 Bit) ISO?
It's not available here ... https://tb.rg-adguard.net/public.php?lang=en-GB

Is the Dell Product Key of any use?
0
Hi. I have an older HP ProLiant server and have a quick question about RAID.
The server has 8 hard drives.
The first 2 were used for a RAID1 setup and that's where the OS was installed (Server 2008 R2).
The other 6 drives were setup in a RAID10 config and housed a COPY of the company's data.
I decided to replace the first 2 drives with SSDs and was thinking that the other 6 drives would still be accessible after the OS was reinstalled on the 2 x SSDs.
I noticed when I initially booted into the RAID setup, I saw a message stating that some drives and configs were removed and such.
It's not a HUGE deal to recreate the RAID10 config on the other 6 drives and copy all of the company data again, but it is very time-consuming.
Just wondering if I have any options before I recreate the RAID10 config and copy everything all over again.
Thanks in advance.
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My OS is win 7 64 bit and I am shopping for a USB Hub which is reliable.  Can the experts please  suggest a model for my Laptop E6500 Lattitude. thank u and regards
0
i'd like to write a function that'll read the contents of a text file (attached, see below) and convert several time/dates into epoch time

i'm getting this error:

Traceback (most recent call last):
  File "practice_0009.py", line 15, in <module>
    converter[data]
TypeError: 'function' object has no attribute '__getitem__'

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Code
#!/usr/bin/python

import os

specimen = open("timedate.txt")
timedates = specimen.readlines()
pattern = "%b %d %Y %H %M %S"
def converter(data):
    calTime = data[0] + " " + data[1] + " " + data[2] + " " + data[3] + " " + data[4] + " " + data[5]
    epoch = int(time.mktime(time.strptime(calTime, pattern)))
    return epoch

for line in timedates:
    data = line.split()
    converter[data]
    print epoch

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this is the contents of the timedat.txt file

Jan 29 2019 23 44 00
Mar 3 2017 12 44 32
Dec 12 1987 3 30 12
Jul 4 1976 4 39 11
Feb 20 1951 14 12 13
Oct 14 1983 2 00 23

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thanks for any help

-dave.j
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We are considering moving to Hyper-V from ESX, but that could be up to 1 yr in the future. In the meantime, I want to create my VMs in a way that is easy to move.

In this case we are reviewing the use of Win 2016 Datacenter vs. Standard. We will definitely be using Datacenter for the Hyper-V host, but have questions about the guest OS to use.
Many of the additional features of Datacenter seem to be focused on using it as the Hyper-V server

1. If we use Standard as the guest OS will we lose access to any of the additional Datacenter features
2. Does Datacenter use significantly more resources than Standard?
3. Does Datacenter licensing apply to all guests even if they are Standard?
0
I´ve create this file : /home/user/rest.sh  (rwxr-xr-x).
------------------------------
#!/bin/bash
#rest.sh

shutdown -r now
-----------------------------

Edited the crontab file with crontab -e command.
inserted this line :

30 14 * * * /bin/sh /home/user/rest.sh

But the computer didn´t restart. What I´m doing wrong /
I´m using Debian Wheezy
0

Operating Systems

35K

Solutions

36K

Contributors

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.