Operating System (OS)
An Operating system (OS) is a software that acts as an interface between the end-user and computer hardware. Every computer must have at least one OS to run other programs. The OS helps you to communicate with the computer without knowing how to speak the computer's language. It is not possible for the user to use any computer or mobile device without having an operating system.

Examples of Operating System
  1. Windows
  2. Linux
  3. Android
  4. iOS  
  5. Mac OS  
  6. Chrome OS
 Client Vs  Server OS:

Windows is?

 Microsoft Windows was announced by Bill Gates on November 10, 1983.Microsoft introduced Windows as a graphical user interface for MS-DOS, which had been introduced a couple of years earlier.

Versions of Windows
  • MS-DOS Windows 1.0 - 2.0
  •  Windows 3.0 – 3.1 
  • Windows 95 
  • Windows 98 
  • Windows ME - Millennium Edition 
  • Windows NT 31. - 4.0 
  • Windows 2000 
  • Windows XP 
  • Windows Vista 
  • Windows 7 
  • Windows 8 
  • Windows 10 
  • Windows Server 
  • Windows Home Server 
  • Windows CE 
  • Windows Mobile 
  • Windows Phone 7-10

Linux is?
●   Free
●   Unix Like
●   Open Source
●   Network operating system

 Who developed the Linux?
In 1991, Linus Torvalds studying Unix at the University, where he used special educational experimental purpose operating system called Minix (small version of Unix and used in Academic environment). But Minix had it's own limitations. Linus felt he could do better than the Minix. So he developed his own version of Minix, which is now know as Linux. Linux is Open Source From the start of the day.


How to get Linux?

Linux available for download over the net, this is useful if your internet connection is fast.
Various Linux distributions are available. The following are important Linux distributions.

Linux distributions.  (Distros)



  • Red Hat Linux
  • UBUNTU Linux
  • SuSE Linux
  • Mandrake Linux
  • Caldera Linux
  • Debian GNU/Linux
  • Slackware Linux

Let's see How to Install Windows Client OS- Windows 7:
Minimum recommended specs for Installing Windows 7: 
  1. 1 GHz 32-bit or 64-bit processor 
  2. 1 GB of system memory 
  3. 16 GB of available disk space 
  4. DVD-R/W Drive 
  5. Internet access (to activate and get updates)

Difference Between 32 bit and 64 Bit Windows 7 OS: 

You need to decide whether to install the 32-bit or 64-bit version of Windows 7. The Windows 7 installation disc package includes both 32-bit and 64-bit versions of Windows 7. Basically, the 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system. So if you plan on using Windows 7 on a computer with more than 3 GB of RAM, Here we strongly suggest using the 64-bit version. Most programs designed for the 32-bit version of Windows will work on the 64-bit version of Windows.

Types of Installation

Basically, there are 2 approaches to installing Windows 7: 

  1. Upgrade (In-place upgrade) – This option replaces your current version of Windows with Windows 7, and keeps your files, settings, and programs in place on your computer. 
  2. Custom (“fresh” installation) – This option replaces your current version of Windows with Windows 7, but doesn’t preserve your files, settings, and programs. It’s sometimes referred to as a clean installation for that reason.

Let's start Installing Windows 7

When installing Win 7 on a  computer insert your Windows 7 DVD  into your DVD drive and reboot your computer. If you are asked to press a key to boot from DVD or CD; press any key. A black window will appear momentarily while the DVD content is read.



Now the “Install now” button.


Next, accept the license terms and click on “Next”.



Next, unless you are trying to upgrade an existing Windows installation, press the Custom (Advanced) Installation button. Note that in this case,; the Upgrade button is disabled because of this specific installation if performed on a new computer which does not have any previous operating system (OS) on it.


Here we reached the partition table of windows 7 we can see that our Disk space is 80 GB. In Windows 7 we can create only 4 partitions during the installation time, aslo a partition of 100 MB will automatically create for saving the System Files. So its better to create only two partitions, one for the windows installation and the whole remaining space in one partition, because we can create partitions as we wish after completing the installation through Device Manager.

Select the disk and click on New 
Give the partition size and click Apply

Click OK in the dialog box


Click Unallocated Space and click New 
Here we are creating 2 Partitions again so applied 30000 MB for the partition and click OK


Finally creating the last partition so select the Unallocated Space and click New doesn’t need to change the size so click Apply.



Finally, we completed the partitioning we can see that we created 3 partitions and one 100 MB Special partition. 

Select the partition in which you want to install Windows 7 and Click Next.



The setup process will now begin to copy files from the bootable DVD to the hard disk


The computer will reboot, and the next thing you will see is the prompt to set the user’s and computer’s name. By default the computer’s name will be username-PC, where username is the username you will enter there in the corresponding space.



Enter the user’s password. And please remember this password for future use.


Next, type in your product key. If you do not have the product key at hand you can still click “Next”, and proceed with the installation.


Choose what sort of protection your computer needs


Choose your time zone and location and click on Next


Select your network location type. This setting can be changed later,; if required.  Also please Note that choosing a profile will have effect on the Windows Firewall and sharing settings. Click “Next”.


Windows will finalize the settings and your desktop will appear


Here it concludes the Wndows 7 Insallation
DAY 2 WINDOWS CLIENT OS

Windows Client OS Installaton

Operating System (OS)
An Operating system (OS) is a software that acts as an interface between the end-user and computer hardware. Every computer must have at least one OS to run other programs. The OS helps you to communicate with the computer without knowing how to speak the computer's language. It is not possible for the user to use any computer or mobile device without having an operating system.

Examples of Operating System
  1. Windows
  2. Linux
  3. Android
  4. iOS  
  5. Mac OS  
  6. Chrome OS
 Client Vs  Server OS:

Windows is?

 Microsoft Windows was announced by Bill Gates on November 10, 1983.Microsoft introduced Windows as a graphical user interface for MS-DOS, which had been introduced a couple of years earlier.

Versions of Windows
  • MS-DOS Windows 1.0 - 2.0
  •  Windows 3.0 – 3.1 
  • Windows 95 
  • Windows 98 
  • Windows ME - Millennium Edition 
  • Windows NT 31. - 4.0 
  • Windows 2000 
  • Windows XP 
  • Windows Vista 
  • Windows 7 
  • Windows 8 
  • Windows 10 
  • Windows Server 
  • Windows Home Server 
  • Windows CE 
  • Windows Mobile 
  • Windows Phone 7-10

Linux is?
●   Free
●   Unix Like
●   Open Source
●   Network operating system

 Who developed the Linux?
In 1991, Linus Torvalds studying Unix at the University, where he used special educational experimental purpose operating system called Minix (small version of Unix and used in Academic environment). But Minix had it's own limitations. Linus felt he could do better than the Minix. So he developed his own version of Minix, which is now know as Linux. Linux is Open Source From the start of the day.


How to get Linux?

Linux available for download over the net, this is useful if your internet connection is fast.
Various Linux distributions are available. The following are important Linux distributions.

Linux distributions.  (Distros)



  • Red Hat Linux
  • UBUNTU Linux
  • SuSE Linux
  • Mandrake Linux
  • Caldera Linux
  • Debian GNU/Linux
  • Slackware Linux

Let's see How to Install Windows Client OS- Windows 7:
Minimum recommended specs for Installing Windows 7: 
  1. 1 GHz 32-bit or 64-bit processor 
  2. 1 GB of system memory 
  3. 16 GB of available disk space 
  4. DVD-R/W Drive 
  5. Internet access (to activate and get updates)

Difference Between 32 bit and 64 Bit Windows 7 OS: 

You need to decide whether to install the 32-bit or 64-bit version of Windows 7. The Windows 7 installation disc package includes both 32-bit and 64-bit versions of Windows 7. Basically, the 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system. So if you plan on using Windows 7 on a computer with more than 3 GB of RAM, Here we strongly suggest using the 64-bit version. Most programs designed for the 32-bit version of Windows will work on the 64-bit version of Windows.

Types of Installation

Basically, there are 2 approaches to installing Windows 7: 

  1. Upgrade (In-place upgrade) – This option replaces your current version of Windows with Windows 7, and keeps your files, settings, and programs in place on your computer. 
  2. Custom (“fresh” installation) – This option replaces your current version of Windows with Windows 7, but doesn’t preserve your files, settings, and programs. It’s sometimes referred to as a clean installation for that reason.

Let's start Installing Windows 7

When installing Win 7 on a  computer insert your Windows 7 DVD  into your DVD drive and reboot your computer. If you are asked to press a key to boot from DVD or CD; press any key. A black window will appear momentarily while the DVD content is read.



Now the “Install now” button.


Next, accept the license terms and click on “Next”.



Next, unless you are trying to upgrade an existing Windows installation, press the Custom (Advanced) Installation button. Note that in this case,; the Upgrade button is disabled because of this specific installation if performed on a new computer which does not have any previous operating system (OS) on it.


Here we reached the partition table of windows 7 we can see that our Disk space is 80 GB. In Windows 7 we can create only 4 partitions during the installation time, aslo a partition of 100 MB will automatically create for saving the System Files. So its better to create only two partitions, one for the windows installation and the whole remaining space in one partition, because we can create partitions as we wish after completing the installation through Device Manager.

Select the disk and click on New 
Give the partition size and click Apply

Click OK in the dialog box


Click Unallocated Space and click New 
Here we are creating 2 Partitions again so applied 30000 MB for the partition and click OK


Finally creating the last partition so select the Unallocated Space and click New doesn’t need to change the size so click Apply.



Finally, we completed the partitioning we can see that we created 3 partitions and one 100 MB Special partition. 

Select the partition in which you want to install Windows 7 and Click Next.



The setup process will now begin to copy files from the bootable DVD to the hard disk


The computer will reboot, and the next thing you will see is the prompt to set the user’s and computer’s name. By default the computer’s name will be username-PC, where username is the username you will enter there in the corresponding space.



Enter the user’s password. And please remember this password for future use.


Next, type in your product key. If you do not have the product key at hand you can still click “Next”, and proceed with the installation.


Choose what sort of protection your computer needs


Choose your time zone and location and click on Next


Select your network location type. This setting can be changed later,; if required.  Also please Note that choosing a profile will have effect on the Windows Firewall and sharing settings. Click “Next”.


Windows will finalize the settings and your desktop will appear


Here it concludes the Wndows 7 Insallation