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 First Generation of Computer Second generation of Computers Third generation of Computers Fourth generation of Computers Fifth generation of Computers Sixth Generation of Computer

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 How to fix a CMOS checksum error How to Fix a Windows CD-ROM, DVD, or Disc Drive Issue How to Open Safe Mode How to Password Protect Files and Folders in Windows How to Reset CMOS or BIOS Settings How to use Computer Keyboard How to create a text file How to enable or disable DHCP in Windows How to test computer memory to determine if its bad How do double space or change line spacing in Microsoft Word How do I know if I have Windows Administrator Rights How many cores does my computer have How to Create a Directory or Folder How to Enter and Exit the BIOS or CMOS Setup How to change Windows Compatibility mode How to clear your internet browser history How to Connect Computer Speakers How to Copy a Web Page Link or URL How to install a Hard Drive or SSD How to Open the Windows Control Panel How to split a screen in Windows How to copy text from a scanned PDF


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 What are Recordable DVD Drives What Does Alt + F4 Do What Does Alt + L Do What is a bit (Binary Digit) What is a cable What is a Calculator What is a capacitor What is a Cold Boot What is a Dialog Box What is a Dual-boot What is a Slide What is A4 What is AM What is Barcode Reader What is EHCI What is a Header What is a Joystick What is a Secondary Storage Device What is Access Time What is Account Sharing What is an Asterisk What is Asynchronous DRAM What is Back Quote What is BIOS What is Borderless Printing What is Case Badge What is CD-ROM What is Chat Slang What is Composite What is RJ Cable What Are Bottom Row Keys What is SAN What is Tray What is VDU What Does Alt + M Do What Does Alt + P Do What is a Cell What is a Command Key What is a key Combination What is a Menu Bar What is a Startup What is a T What is Chat What are the F1 through F12 keys What does Alt + Enter do What Does Alt + Home DO What does Alt + R do What does Ctrl + B do What Does Ctrl + Enter Do What Does Ctrl + R Do What does Ctrl + G do What does Ctrl + 9 do What does Ctrl + End do What does Ctrl + O do What Does Ctrl + P do What Does Ctrl + Q do What is a Colon What is a Core What is Apple Touch Icon What is Clock What is Code What is Computer Crime What is Ctrl What is DAT What is Data diddling What is Date Why won't my computer turn on What Does Alt + N Do What does ctrl + 2 do What does ctrl + space do What does Ctrl + W do What does Ctrl + T Do What Does Ctrl + 2 do What does Ctrl + 5 Do What are the most common file types and file extensions What are Sticky keys What Does Ctrl + Shift + Esc Do What is Settings What is Task Manager What is Taskbar What is a DNS Resolver What does ctrl + 1 do What does ctrl + 0 do How to install software What is a Folder What is a Legend What is a MAC Address What is a Path What is a Ruler What is a Toolbar What is an Intranet Meaning and Differences with Internet What is an SSD What is Inheritance What is Tablet What is Depth What is Docking Station What is Double Click What is a Solid Ink Printer What is a Temporary File What is Backup and Restore What is Electronic Payment Systems Eps What is Marshalling


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 Difference between Optical Fibre and Coaxial Cable Difference between Website and Webpage Difference between Classes and Objects Input VS Output Difference between Primary and Secondary Storage with Examples


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 10 Essential Examples of Web Browsers Binary Subtraction using 2’s Complement Case Sensitive Languages Computer Pioneers and people who are CEO Microsoft Word Shortcut Keys Parts of Computers Names, Definitions and Images ROM and its Types Basics of Information Technology Characteristics of a Good Software Design Characteristics of Management Information System Classification of Management Information System Implementation of MIS Input Devices of Computer Definition Limitations of Management Information System 3 Types Of Network in Computer Block Diagram Of Control Unit Difference Between Computer and Embedded System Difference Between Hard Disk and Floppy Disk Abstraction in OOAD Hardware and Software Devices Optomechanical Mouse CMOS Memory What is a Terminal? What is Graphic Design? What is Load? What is Passcode? What is Reboot? What is Registry? What is Safe Mode? What is Standby? What is SYN (Synchronize)? What is Task Manager? Attribute Computing BPS in Computer Bulletin Board System Light Pen Input Device 3 TYPES OF NETWORK IN COMPUTER Block diagram of control unit What is a Solid Ink Printer? What is a Temporary File? What is an App launcher? What is Backup and Restore? What is a Tab Character? What is the Core i3? What is Paint? What is a Workbook? Advantages and Disadvantages of Online Education What is a String? What is a VDU (Visible Display Unit)? 50 Uses of Computer What is Workspace? What is a Procedural Language? What is VGA (Video Graphics Array)? Object Linking and Embedding in MS Word Semiconductor Memory Types of Parallel Computing Web Resources Difference between Virus, Worm and Trojan Horse Difference between HQ (High Quality) and HD (High Definition) What is Text Wrapping What is Timestamp? Semiconductor Ram Memory What is a File Attribute? What is a Video Call? Difference between SDRAM and DDR What is ANSI? Difference between DOS and Windows How to Set the Path and Environment Variables in Windows? Mainframe System What is ScanDisk? C drive in Mac Computer Memory Table How to Change the Keyboard Language in Windows? What is a Video Call? What is a Zoom Slider? What is Floppy Disk in Computer What is the most Popular Operating System? OMR in Computer What is a Work Area?

How to test if a Website or Web Page is down?

The web server hosting a website, the routers, and other hardware connecting your computer to the server could all fail. The web server or routers may be unavailable due to adjustments, maintenance, patching, or other problems. When this occurs, your computer may experience a timeout or an error (such as a 404 error) when attempting to access a website.

Your DNS settings, hosting company, or web apps may be at fault if your website is offline. An offline website may also be the result of security problems brought on by DDoS attacks or hackers trying to infiltrate your website with malicious malware. The longer your website is down for users, the more money you could be losing. Popular websites like Amazon reported losing $4.8 million after experiencing a 40-minute outage.

How to test if a website or web page is down

Additionally, downtime on your website can harm your ranking on Google and other search engines. You might not be aware that your website is offline, though, as errors sometimes happen on the user's end. In this situation, continual site uptime monitoring is essential for taking preventative steps to safeguard your WordPress site.

The tests listed below can help you figure out whether the issue is on your end, between you and the problem, or on the web server.

1. Examine your Internet connection.

A website could seem to be unavailable if your Internet connection is down. By visiting a website you've never been to, you can determine whether you have this issue rapidly. For instance, your Internet connection is probably not the issue if you are accessing this website for the first time while using the same Internet connection.

2. Try a different browser or refresh your current one.

You can experience issues in some circumstances because of your Internet browser. Make sure to hit the keyboard's F5 key to update the website you are trying to visit to help make sure that is not the issue. Try using another browser if this doesn't work, and you have one installed (like Google Chrome or Firefox, for example). Try clearing your browser's cache if the web page functions well in another browser but not in the one you prefer. You may need to restore the browser to its factory settings if this does not solve the problem.

3. A router test and reset

A website or web page may not function if your home router or broadband modem is having issues, which is not uncommon. Websites are frequently not found as a result of an issue with routers' routing tables. Alternatively, it could seem like all websites function properly except for one. Disconnect the power line from your router and modem and keep the devices unplugged for 10 seconds to assist ensure there isn't a problem with them. Wait a short while, then plug the devices back in and attempt the website or web page again. After trying the website once more, make sure to restart your browser. If not, a cached version of the website might be used by the computer.

How to test if a website or web page is down

4. The site was used as a test for an online service

Check to see if the issue is on their end if you have tried all of the options above and are still unable to access a website. Using a third-party service to determine whether a website is active or not is the most effective approach to testing this. A few services to determine whether or not a website is operational are listed below.

One of the following factors could be to blame for the issue factors if these services indicate that the website or web page is up, but you are still unable to view it.

  • Internet connectivity issue.
  • The website has been restricted by work or school.
  • It's possible to prohibit an IP address.

By calling them for assistance, you can make sure the issue is not on their end and rule out a problem with your ISP (Internet service provider). You must get in touch with the network administrator if this machine is located at a place of business or education. Another technique to test a website is to turn off the Wi-Fi on your smartphone, and the website is currently unavailable. Check to determine whether the issue persists when Wi-Fi is disabled while utilising the cellular data service on your phone. If the website works well on your phone, there is a router or PC issue.

5. Trace the network connection

A traceroute on the IP address or domain you are attempting to reach can be used for additional troubleshooting. You can determine if one of the routers between you and the web server is the issue by performing a traceroute.

6. Root Cause Evaluation

To assign IT, workers to the task of resolving and making your website accessible once more after being informed about accessibility issues with your website, you are necessary to gather more information about the issue in question. Certain monitoring tools frequently send additional data. This data, which can include HTTP status codes, request content, resolving IP tests, DNS failures, and traceroute, is also known as root cause analysis and is used to locate and resolve issues. The 404 error code, for example, indicates that a specified page was not found; it may be the result of a wrongly configured check, an unintended deletion of a page, or a botched redirect. HTTP status codes often aid in understanding specific issues.

Web page speed testing: The speed at which first- and third-party resources load can be measured using page speed monitoring to assess a website's functionality. With the help of this, you can evaluate how well your website is optimised and take action to fix loading problems before they affect a larger user base.

Monitoring of transactions: Monitoring key website navigational processes, such as purchases, orders, and registrations, is helpful. This supports the early rectification of transactional issues in order to avoid the loss of money and engagement.

Automation and simulation techniques are used to do monitoring for transaction monitoring, page load, and uptime jointly. The term "synthetic monitoring" is used to describe them. Even though synthetic monitoring might not be able to identify every potential issue with transactions, page loading, and downtime, it is still important to ensure sure your website is up and functioning properly. For instance, a navigational flow may break on mobile devices, or a particular subpage may load slowly on a specific browser or device type because your customers could be using any browser or device platform, wherever in the world, synthetic monitoring is unable to take into account every scenario that might arise.

A short piece of code that is frequently injected across your website by real user monitoring software allows you to collect information about visitor activity in real-time directly from their browsers. As a result, you can learn more about the interactions and experiences that actual website users are having. Consequently, it can aid in locating issues that synthetic monitoring was unable to find. It can also provide you with total visibility into how well your website performs across the entire internet.


Many things can cause a website to go down, such as server maintenance, DNS problems, or malicious requests from hackers. If you own a website, you should optimise it by keeping an eye on its uptime. Your website's prolonged downtime may result in security flaws, a decline in visitors, or a loss of revenue. Fortunately, there are a variety of tools you may use to check if a website is down. You will be able to view the outcomes of your website status several times after entering the website domain and a few other pieces of information into these tools.

Sometimes users are unable to access your website because it appears to be down on their network. To determine whether your website is usable worldwide, you must first do a lookup with one of the resources we provide. If the website appears to be operating fine, The problem is probably being brought on by the user's network. In this case, the user might need to clear their cache or fix problems with their internet connection. Make sure to test with different tools for more accuracy. To prevent website downtime, it's essential that you choose a package from a trustworthy hosting provider. A 99.99% uptime guarantee is included with all reliable hosting services.