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

Components

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

Memory

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

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

Questions

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

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

Misc

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?

What is Dial-up?

Dial-up is an internet connection that uses a standard telephone line to connect to the internet. The term "dial-up" refers to dialing a phone number to establish a connection between your computer and your Internet Service Provider (ISP). When you use dial-up, your computer uses a modem to send and receive data over the phone. To establish a connection, your computer sends a series of tones, called "handshaking," to the ISP's modem. Once the connection is established, data can be transmitted at a speed of up to 56 kilobits per second (Kbps).

What is Dial-up

What does a dial-up connection sound like?

A dial-up connection has a distinct sound that many people who used the internet in the 1990s and early 2000s may remember. When you dial up, you'll hear a series of beeps and screeches as your modem communicates with the ISP's modem to establish a connection. The sound is often described as a series of high-pitched noises and static, and it can be quite loud. Here's a description of the sounds you might hear during a dial-up connection:

Dial tone: When you first pick up the phone line, you'll hear a steady tone indicating that the line is active and ready to make a call.

Handshaking: After you dial the ISP's phone number, your modem will emit a series of beeps and screeches as it communicates with the ISP's modem. This is the handshaking process, during which the two modems negotiate the terms of the connection.

Connection: Once the handshaking is complete, you'll hear a steadier sound, indicating that the connection has been established and data can be transmitted.

Disconnect: When you're ready to end the session, you must disconnect manually by hanging up the phone or clicking the "disconnect" button in your dial-up software. As the connection is terminated, you'll hear another series of beeps and static.

History of Dial-up:

Dial-up internet access was one of the earliest internet connecting methods and was widely used in the 1990s and early 2000s. Here's a brief history of dial-up:

  • The first modems were developed in the 1960s and used for sending data over telephone lines. These modems transmitted data at about 110 bits per second (bps).
  • In the 1980s, modems became more widely available for personal computers to connect to online services such as CompuServe and AOL.
  • In the early 1990s, the World Wide Web began to gain popularity, and dial-up internet access became more widely available through ISPs such as Prodigy, CompuServe, and AOL.
  • At the time, dial-up connections were typically limited to 14.4 Kbps or 28.8 Kbps, which later increased to 56 Kbps.
  • In the late 1990s, broadband internet access emerged, offering faster speeds and a more reliable connection than dial-up.

Today, dial-up is largely obsolete, with broadband internet access now the norm in most developed countries. However, dial-up may still be used in some rural areas or developing nations as it can be more readily available and affordable than broadband alternatives.

The dial-up connection today:

Dial-up internet connections are still available today, but they are increasingly rare and have been largely superseded by faster and more reliable broadband internet connections.

  • In developed countries, dial-up is no longer a common home or business internet connection option. Most people now use broadband connections such as DSL, cable, or fiber optic, which offer much faster download and upload speeds, greater reliability, and the ability to simultaneously use the internet and phone lines.
  • In some remote areas or developing countries, dial-up may still be the only option for internet access. Installing broadband infrastructure in these areas can be difficult or prohibitively expensive. In such cases, dial-up may still be used because it is more readily available and affordable than broadband alternatives.

While dial-up connections still exist, they are now considered a legacy technology and are unlikely to be a popular choice for internet users worldwide.

Explain the process of dial-up:

The process of establishing a dial-up internet connection involves several steps. Here is a brief overview of the process:

  • Connect your computer to a phone line: To use dial-up, you need to connect your computer to a standard telephone line using a modem. This can be done with a physical cable or with a wireless modem.
  •  Once your computer is connected to the phone line, you need to start the dial-up software that comes with your computer or that you have installed separately. This software lets you connect to your Internet Service Provider (ISP).
  •  In the dial-up software, you will need to enter the phone number of your ISP. The ISP usually provides this phone number, which can be found in the documentation or on the ISP's website.
  •  When you initiate the connection, your modem will send a series of tones to the ISP's modem to establish a relationship. This process is called handshaking, and it typically takes a few seconds.
  •  Once the handshaking process is complete, your modem will establish a relationship with the ISP's modem. At this point, you can send and receive data over the internet.
  •  Once connected, you can use the internet as you would with any other internet connection. However, you should be aware that dial-up connections are much slower than broadband connections and may be subject to disconnections and other technical issues.
  •  When you are finished using the internet, disconnect your dial-up connection to avoid running up unnecessary charges or tying up the phone line. You can do this by clicking the "disconnect" button in the dial-up software or hanging up the phone.

Advantages of dial-up:

Dial-up internet connections have some advantages over other types of internet connections. Here are a few examples:

  1.  Dial-up internet connections are widely available and can be accessed almost anywhere with a standard telephone line. This makes them a good option for people living in remote areas or in countries where broadband internet is not yet widely available.
  •  Dial-up internet connections can be more affordable than other internet connections, such as broadband or mobile data plans. This is because dial-up does not require any special equipment or infrastructure beyond a phone line and a modem, which many people already have.
  •  Because dial-up internet connections use a dedicated phone line, they can be more secure than other internet connections. There is no risk of interference or hacking from other users on the same network, as there can be Wi-Fi or other shared networks.
  • : Dial-up internet connections are relatively simple to set up and use. They do not require any special technical knowledge beyond basic computer skills, and the software used to connect to the internet is often user-friendly.

However, it should be noted that dial-up internet connections have several significant disadvantages compared to other types of internet connections. These include slow download and upload speeds, limited bandwidth, the inability to use the phone line for voice calls while connected to the internet, and frequent disconnections.

Drawbacks of Dial-up:

While there are some advantages to dial-up internet connections, there are also several significant drawbacks. Here are a few examples:

  •  Dial-up connections are significantly slower than other types of internet connections, such as broadband or mobile data plans. Dial-up speeds typically range from 14.4 kbps to 56 kbps, much slower than most other types of internet connections. This can make browsing the web, downloading files, and streaming media very slow and frustrating.
  •  Dial-up internet connections have limited bandwidth, meaning they cannot simultaneously handle large amounts of data. This can lead to slow speeds and disconnections if you try to download or upload large files or use bandwidth-intensive applications such as video conferencing.
  •  When you are connected to the internet with a dial-up connection, your phone line is tied up, meaning you cannot make or receive phone calls online. This can be inconvenient, especially if you rely on your phone for work or other important communications.
  •  Dial-up connections are prone to frequent disconnections, which can be frustrating and time-consuming. Disconnections can occur for various reasons, such as line noise, network congestion, or software issues.
  •  Dial-up technology is outdated and largely replaced by faster and more reliable broadband internet connections. This means that dial-up links may not be compatible with some modern websites, applications, or devices.

While dial-up internet connections may be a good option in some situations, they are generally not a practical or convenient choice for most users due to their slow speeds, limited bandwidth, and frequent disconnections.