Computer Fundamentals Index

Computer Introduction Types of computer Characteristics of computer Uses of computer History of Computers

Computer Languages

Low Level language Middle level Language High level language

Computer Generation

Generation of Computers Second generation of Computers Third generation of Computers Fourth generation of Computers Fifth generation of Computers

Peripheral Devices

Input devices Output device


Block diagram and basic components Control processing unit (CPU) Software Hardware


Computer Memory Registers Memory Hierarchy RAM Vs ROM Understanding file sizes (Bytes, KB, MB, GB, TB, PB, EB, ZB, YB)

Computer Network

Types of Network Types of Area Networks (LAN, WAN, MAN) TCP Flags

Computer Virus

Computer Virus

Computer Ports

Computer Ports


How to hack a computer How much do Computer Programmers make How does a Computer work How to associate a file with a program How does a computer convert text into binary How does a computer process data into information How to fix a CD-ROM DVD How to fix the no input signal How to install computer memory How to associate a file with a program How to log out of your operating system How do I change my name on Google How to installation or uninstallation Microsoft Paint How to fix a not a valid Win32 application error How to fix missing Microsoft Windows .dll files How to use a computer keyboard How to erase my hard drive and start over How can I test how many words I can write a minute How to shut down a computer How do I open and edit the Windows registry How to edit the registry from the command line How to restart Microsoft Windows How to install a computer processor How to open Microsoft Paint How to fix problems in Windows after installing new software How to enable or disable the preview pane of Microsoft Outlook How to open a Microsoft .wps or Works file in Word How to view the HTML source code in Microsoft Word How to View or Change the Screen Resolution of a Monitor How to Connect and Install a Computer Keyboard How to Delete Temporary Files in Windows 10 How to determine Which Version of Microsoft Office I'm using How to find out how much hard drive space is available How to Fix PC Stuck on Verifying DMI Pool Data How to choose which items show in the notification area How to find similar images using Search by Image How to fix Low Memory and out of memory errors How To Replace the CMOS Battery How do I Update my Antivirus Program How to fix a general protection fault How to Identify problems in the Windows Device Manager How can the Base be Shown How to test if a Website or Web Page is down How Much is 1 Byte, Kilobyte, Megabyte, Gigabyte, etc


Who invented Computer What are the advantages of the Internet? What are the disadvantages of the Internet? Is my computer 64 bit? What is Edge Computing? What is a Router? What is Monitor What is Printer What is a Web Browser What is Microphone What is a Webcam What is PC What is Keyboard What is Motherboard What is WAP What is URL What is a Digital Assistant When was the first Computer Invented What is Modem What is Firmware What is Imperative Programming What is Protocol What is Safe Mode What is Device Driver What is Hybrid Topology What is Mesh Topology What is Procedural language What is a hyperlink What is a Username Who invented the Internet What is Video Card What is Sound Card What is Binary What does Alt+B do What does Alt+D do What does Alt+E do What does Alt+Esc do What does Alt+R do What does ALT + Q do What does Alt + Tab do What is Data Manipulation What is a touch screen What is Back Panel What is Analog Monitor What is AR lens What is an ATX Style Connector What is a File System What is Hard Disk Drive (HDD) What is a boot device What is accessibility What is Line In What is network Interface card (NIC) What is Optical Disk Where can I ask questions on the internet What is Auto Rotate What is CAD (Computer-aided design) What is Cable Modem What is Home Page What is boot menu What is braille reader What is flash memory What is Windows What is Clipboard What is Cyber Warfare What is Myspace Why has my IP address changed What is Jacquard Loom My computer is running slow, what steps can I do to fix it What is a Kensington Lock What is a multicore processor What is automation Are smartphones and tablets computers What is a Login Script What is a Loosely Typed Language What is Multitasking? Why my computer monitor shows no display or black screen What is REM What is Parallelization What is Overtype mode What is open with What is Bracket What is an Online Service What is REM What is Parallelization What is Overtype mode What is open with What is Bracket What is an Online Service What is the Pg Dn Key (Page Down Key) What is the Pg up Key (Page up Key) What is Palmtop Computer What is a Processing Device What is a Print Preview What is the Print Screen Key What can I do if my computer or laptop is lost or stolen What is a Model Number What are the currently available antivirus programs What are Toggle keys What is a Case fan What is a Silicon Chip What is a Slate PC What is a TAB stop What is an Octothorpe What is Task Pane What is Task View What is the svchost.exe file used for in Windows Where can I find free online virus scanners Why am I unable to increase the resolution in Windows What is Autofill When I click my mouse, it sometimes double-clicks What is Scratch What is UDIMM What is MsConfig What is an Expansion Card What is an Executable File What is an Elevated Command Prompt What is an AC Adapter What is AIMBOT What is a Software Suite What is a LED Monitor What does Alt + X do What does alt + space do What does Alt + O do Now that I’ve got a Computer, what can i do What is a Punch Card What is RDIMM What is Select All What is Serial number What is Thermos flask What programs can I use for speech recognition What are the Advantages of Computers What are the Disadvantages of Computers What does Alt + T do What Hardware Device Drivers should be Updated What is a Desktop What is a Ring Topology What is CMOS What is a Directory What is a Mechanical Mouse What is a Plotter What is a Variable What is an Icon What is Data What is HDMI What is Remote What is Right-Click What is SMPS Why does my Laptop not turn on What is a Copyright What is a Cordless Mouse What is a CSV file What is a Joystick What is a Start Button What is a Taskbar What is an Alignment What is an Output Device What is Cat 5 What is Google Chrome What is Post


Difference between hardware and software Difference between multiprocessor and distributed systems Difference between Desktop and Laptop Difference between File and folder Difference between Hard Copy and Soft Copy Open Source Programs vs Closed Source Programs


Quantum Computing Computer Software Autoexec.bat and config.sys info Update an Antivirus Use of Internet Advantages and disadvantages of Email Computing Power Internet Explorer Shortcut Keys Advanced Encryption Standard (AES) Augmented Reality Infrastructure Readiness Check Top 10 Internet tips and tricks Introduction and Features of FoxPro Features of Multimedia Top 10 online services and applications Receiving S.M.A.R.T. status bad backup and replacing error Version Control System Uninstalling Software or Apps in Windows Data Warehouse Increase or decrease font size in Word using keyboard shortcuts Mouse not detected or working in Windows Computer Cleaning Information and Steps Function Keys on Keyboard Windows 7 Alt+Tab won’t stay on top or stick

How to log out of your operating system

Whenever you use an application or software or an operating system, you have to log in to that particular system. As soon as you log in, a period called a login session starts, and the work you do in that system is done during this period. When you have finished your work, that system gives you an option to log out. It is a good and vital method to log out as it protects your data from the access of some other user coming to that system.

According to different Operating Systems and their versions, there are multiple ways to log out.

For Windows 10 Users

1) Using Ctrl + Alt + Del – This is a keyboard shortcut method in which first press "Ctrl + Alt + Del" keys from your keyboard, and you will get to see several options such as Lock, Switch User, Sign Out, and Task Manager between these options click on Sign Out.

How to log out of your operating system

2) Using Alt + F4 – This is another keyboard shortcut method by pressing "Alt + F4" keys simultaneously will open a Shut Down Windows popup. You will get to see a drop-down list. Click on it and select the option ‘Sign Out.

How to log out of your operating system

3) Using Power Menu – One way of doing this is by using the keyboard shortcut keys "Win + X" or on your screen, you will get to see a Start icon on the bottom left corner. Using your mouse right, click on this icon. After doing any one of the above, a power menu opens up, having multiple options. Choose the Shut down or sign out option and select Sign out.

How to log out of your operating system

4) Sign Out from Command Prompt – Press the "Win + X" keys from your keyboard, and you will get to see a power menu opening. Choose Windows PowerShell or Command Prompt option. After this, type the command "shutdown /l", and press enter from your keyboard. Windows will now automatically sign out from your account.

5) Using Start Menu – Using your mouse left, click on the "Start" icon and select the profile picture of the user who is currently logged in to the system. Choose the option Sign out. If multiple users are logged into the single system, you also get to see the Switch account option. By choosing the Switch account option, you will be able to log out from the current account and log in to some other account.

How to log out of your operating system

6) Run Logoff Command – From your keyboard, press the "Win + R" keys, and you will get to see a "Run" named dialog box opened. Besides the "Open:" label, you will get to see a typing space out here type "logoff" and press enter. Now Windows will sign you out from your current account.

7) Add Sign Out Shortcut Menu – This method will create a shortcut Sign out menu on the desktop, with the help of this you will be able to Sign out quickly. To do so, first of all, type "logoff" from your keyboard in the Cortana Search Box or in Windows. You will get to see an option named "logoff" as Run Command right-click on this option and then select "Open file location".

A path "C:\Windows\System32" will open up, which contains the "logoff.exe" file on your computer. From the several options displayed right, click on the "logoff" file and then select the "Send to" option. Under this, choose the "Desktop (create shortcut)" option. Now you will get to see a "logoff-Shortcut" on your desktop.

For Windows 8 and 8.1 users

1) Using Ctrl + Alt + Del – This is a keyboard shortcut method in which you need to press the "Ctrl + Alt + Del" keys from your keyboard and then choose the "Sign out" option.

2) Using Start Screen – In the Start screen of your Windows, click on the profile picture of the user who is currently logged in to the system and then select the "Sign out" option.

For Windows 7 and Vista users

1) Using Ctrl + Alt + Del – This is a keyboard shortcut method in which first press the "Ctrl + Alt + Del" keys from your keyboard and then choose the "Log off" option.

2) Using the Start menu – Click on the "Start" icon, and you will get to see the "Start" menu. In this menu, on the bottom right side beside the "Shut down", click on the right arrow and choose the "Log off" option.

How to log out of your operating system

For Windows XP users

1) Using the Start menu – Click on the "Start" icon, and a "Start" menu will open up. In this menu, click on "Log off".

How to log out of your operating system

For Apple Mac OS users

1) Using Shift-Cmd-Q - From your keyboard, press "Shift-Cmd-Q", and a dialog box named "logoff" opens up and here, click on "Log Out".

2) Using Shift-Opt-Cmd-Q - Press "Shift-Opt-Cmd-Q" and click on "Log Out".

3) Using Apple Menu – At the upper left corner, click on the Apple icon. An Apple menu opens up and at the bottom, click on "Log Out".