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?

What is a cable?

A cable is one or more wires covered in plastic and can connect the computer system. It is also referred to as a cord, connector or plug. Cables are also used to connect input and output devices to computers. It provides a medium for transmitting information from one device to another. Cables are essential to many different technologies and are used in various applications, including telecommunications, networking, power transmission, and audio/visual systems.

History of Cable

Cable television was first developed in the United States in the late 1940s to bring television signals to areas that were too far away from broadcast towers to receive them over the air. In the early days of cable, the signs were collected and transmitted using coaxial cables, which are thick, shielded cables capable of transmitting high-frequency signals over long distances without significant loss of quality.      

What is a cable?

The first cable was small and served only a few hundred subscribers, but as the technology developed, cable systems began to grow in size and popularity. In the 1970s and in the 1980s, cable television began to offer additional channels beyond the basic broadcast channels, and by the 1990s, it had become a significant source of entertainment for millions of people around the world. In the early 21st century, cable television was joined by other forms of high-speed internet access, such

DSL and fibre optic offered even faster speeds and more reliability.

Today, cable remains a popular choice for both television and internet service,

although it faces competition from other types of broadband technologies.

Uses of Cable

  • A cable is a wire used to transmit electrical power or signals over long distances. It comprises one or more conductive wires encased in a protective outer layer, typically made of rubber, PVC, or other insulating material.
  • Cable is often used to transmit electricity from power plants to homes and businesses and transmit signals such as data, audio, and video between devices.
  • A cable is a wire used to transmit electrical power or data. It is typically made of copper or aluminium wire insulated with a protective coating or jacket.
  • Cable is used in various applications, including building electrical wiring, telecommunications, and data transmission.
  • The cable can transmit electrical power or data over long distances. It is often used with other devices, such as connectors and cable ties, to create a secure and reliable connection.
  • Cable is available in different sizes, types, and ratings to suit various applications, and it is an essential component in many modern electrical and communication systems. Top of Form Cables are used for various purposes, including transmitting electrical power, data, and audio and video signals.

Some common examples of cable and their use

1) Electrical cables: These are used to transmit electrical power from one location to another. They are typically made of copper or aluminium wire and are used in various applications, including powering buildings, homes, and industrial machinery.

What is a cable?

2) Data cables: These are used to transmit data between devices, such as computers, printers, and servers. Some standard data cables include Ethernet, USB, and HDMI cables.

What is a cable?

3) Audio and video cables: These are used to transmit audio and video signals between devices, such as TVs, speakers, and home theatre systems. Standard audio and video cables include HDMI cables, RCA cables, and coaxial cables.

What is a cable?

4) Communication cables: These are used to transmit communication signals, such as phone calls and internet data. Standard communication cables include telephone, fibre optic, and satellite cables.

What is a cable?

5) Control cables: These are used to transmit control signals between devices, such as in industrial automation systems. Some common types of control-providing power cables include ethernet cables.

What is a cable?

Advantages of Cable

There are several advantages to using cable as a means of transmitting data or providing power:

  • Cable is generally more reliable than wireless transmission methods, as it is not subject to interference from other devices or environmental factors.
  • It can transmit data at much higher speeds than wireless methods, making it suitable for high bandwidth applications.
  • It is generally more secure than wireless transmission methods, as it is difficult for outsiders to intercept data transmitted over a cable.
  • It is a more cost-effective solution for transmitting data over long distances, as it does not require expensive wireless equipment or infrastructure.
  • It is a durable and long-lasting solution, as it is not subject to wear and tear like wireless devices that rely on batteries or other consumables.
  • It is a versatile solution that cable can use in various applications, including networking, power transmission, and audio/visual signal transmission.
  • Cable internet is widely available in urban and suburban areas, making it a convenient option for many people.
  • Cable internet is typically more reliable than satellite internet, which can be affected by weather conditions.

Disadvantages of Cable

There are also some disadvantages of using cable as a means of transmitting data or providing internet access:

  • Limited availability: Cable internet is unavailable in all areas, predominantly rural or remote.
  • Shared bandwidth: Cable internet relies on shared bandwidth, which means that the speed of your connection can be affected by the number of people using the internet in your area simultaneously.
  • Cost: Cable internet can be more expensive than other types of internet service, such as DSL or fibre optic.
  • Long-term contracts: Many cable companies require long-term contracts, which can be inconvenient if you want to switch providers or move to a new location.
  • Equipment rental fees: Some cable companies charge a fee for renting the modem and router needed for their service.
  • Potential for interference: Cable internet relies on coaxial cables, which can be affected by electrical interference from devices such as TVs, appliances, and fluorescent lights. The cable can cause problems with the quality and speed of your internet connection.
  • Many cable providers charge customers a fee to rent equipment such as modems and routers.

Types of Cable

Many types of cable are available, including coaxial cable, fibre optic cable, and twisted pair cable, each of these is designed for specific applications and signals. Thread is essential to modern communication and electrical systems and is used in various industries, including telecommunications, construction, and automotive. Several types of wires are commonly used for transmitting data and other signals. 

  • Coaxial cable: Coaxial cable, also known as coax, is a type of cable that is commonly used for transmitting high-frequency signals, such as television and internet data. It is made up of a central conductor surrounded by insulation and is protected by an outer shield. Coaxial cable is resistant to interference and can transmit signals over long distances without significantly losing quality.
What is a cable?
  • Ethernet cable: Ethernet cable is a twisted pair of cables that connect computers and other devices to the internet or each other. Various Ethernet cables, including Cat5, Cat5e, Cat6, and Cat7, differ in speed and performance capabilities.
What is a cable?
  • Fibber optic cable: Fibber optic cable is a type of cable that uses thin strands of glass or plastic to transmit data as light signals. It can transmit data over long distances at extremely high speeds and resist interference.
What is a cable?
  • HDMI cable: HDMI (High Definition Multimedia Interface) is a cable used to transmit audio and video signals between devices, such as a television and a Blu-ray player. HDMI cables are available in different lengths and versions, which support different resolutions and refresh rates.
What is a cable?
  • USB cable: USB (Universal Serial Bus) is a cable used to connect devices to a computer or to each other. Several types of USB cables, including USB-A, USB-B, USB-C, and others, differ in their shape and capabilities.
What is a cable?