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To Check Max Capacity of Ram

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If you want to increase the RAM of your laptop and you do not know the equivalent of your laptop or how many GB of RAM support and if you increase the RAM in your laptop and put more RAM than the capacity of the laptop then your money will be wasted. So you open the CMD and check it. To do this, use the following command:   wmic memphysical get maxcapacity Step 1:First you open the terminal on your computer. Step 2:Then you type  wmic memphysical get maxcapacity in  your cmd. and you get that how much RAM supported in your computer. NOTE: This is in kb so you can convert KB to GB.
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Basics of Computers – Types of OS

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👉 Types of OS ?

  1. GUI OS
  2. Time Sharing OS
  3. Real Time OS
  4. Distributed OS
  5. Popular Operating Systems    (Ex: Windows, BOSS, etc..)
  6. Mobile OS   (Ex: Android, Apple iOS, etc..)


  1. GUI OS

GUI is the acronym for Graphical User Interface. An operating system that presents an interface comprising graphics and icons is called a GUI OS. GUI OS is very easy to navigate and use as users need not remember commands to be given to accomplish each task. Examples of GUI OS include Windows, macOS, Ubuntu, etc.

2.Time Sharing OS

Operating systems that schedule tasks for efficient processor use are called time sharing OS. Time sharing, or multitasking, is used by operating systems when multiple users located at different terminals need processor time to complete their tasks. Many scheduling techniques like round robin scheduling and shortest job next scheduling are used by time sharing OS.

3.Real Time OS

An operating system that guarantees to process live events or data and deliver the results within a stipulated span of time is called a real time OS. It may be single tasking or multitasking.

4.Distributed OS

An operating system that manages many computers but presents an interface of single computer to the user is called distributed OS. Such type of OS is required when computational requirements cannot be met by a single computer and more systems have to be used. User interaction is restricted to a single system; it’s the OS that distributed work to multiple systems and then presents the consolidated output as if one computer has worked on the problem at hand.

5.Popular Operating Systems

  • Windows − Windows is a GUI operating system first developed by Microsoft in 1985. The latest version of Windows is Windows 10. Windows is used by almost 88% of PCs and laptops globally.
  • Linux − Linux is an open source operating system mostly used by mainframes an supercomputers. Being open source means that its code is available for free and anyone can develop a new OS based on it.
  • BOSS − Bharat Operating System Solutions is an Indian distribution of Linux based on Debian, an OS. It is localized to enable use of local Indian languages. BOSS consists of −
    • Linux kernel
    • Office application suite BharteeyaOO
    • Web browser
    • Email service Thunderbird

7.Mobile OS

An operating system for smartphones, tablets and other mobile devices is called mobile OS. Some of the most popular OS for mobile devices includes−

  • Android − This Linux-based OS by Google is the most popular mobile OS currently. Almost 85% of mobile devices use it.
  • Windows Phone 7 − It is the latest mobile OS developed by Microsoft.
  • Apple iOS − This mobile OS is an OS developed by Apple exclusively for its own mobile devices like iPhone, iPad, etc.



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