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)?

Parts of Computers Names, Definitions and Images

Computer: A computer is an electronic device, which is made up of using various hardware. The computer processes data, performs calculations, and communicates with other devices and systems. Hardware refers to the physical components that are used in a computer. Generally, the hardware is considered as the parts of a computer.

Computer works with the help of Software, which are programmed in the computer according to their flow of executions. There are many different types of software; for example, the Operating System we use is a big software that controls all the other hardware of a computer and web browsers, and other applications.

Parts of Computer

1) Keyboard.

A keyboard is an input device that allows users to input and control the computer using keystrokes. It consists of a layout of buttons or keys, each corresponding to a specific character or function. Most keyboards also have special keys, such as the Enter key, the Shift key, and the Ctrl key, which perform specific functions. Keyboards come in various sizes and shapes, and they can be connected to the computer using a variety of interfaces, such as USB, Bluetooth, and wireless. The layout of the keys on a keyboard is typically standardized, with the keys arranged in rows and columns. The keys on a standard keyboard include the following:

  • Alphabetical keys: These are the keys that represent the letters of the alphabet. They are arranged in a QWERTY layout, which means Q, W, E, R, T, and Y are arranged in the top row of the keyboard.
  • Numeric keys: These are the keys that represent the digits 0 through 9. They are typically located in a row above the alphabetical keys.
  • Function keys: These are the keys labelled F1 through F12 and are typically located at the top of the keyboard. They are used to perform specific functions within an application or operating system.
  • Special keys: These are the keys that perform specific functions, such as the Enter key, the Shift key, the Ctrl key, and the Alt key. They are typically located along the bottom row of the keyboard.
  • Arrow keys:  These change the position of the cursor on the screen. You can find these Keys on the left of the numeric keys.
  • Modifier keys: They are used with other keys to perform specific functions. The shift key, the Ctrl key, and the Alt key fall under this category.
Parts of Computers: Names, Definitions, and Images

In addition to these standard keys, many keyboards also have additional keys that perform specific functions. These can include keys for media controls, such as play, pause, and skip, as well as keys for adjusting the volume or brightness of the screen. Some keyboards also have a touchpad or trackball built in, which can be used as an alternative to a mouse.

2) Mouse

A mouse is an input device that allows users to move a cursor on the screen and interact with the user interface using clicks and gestures. It consists of a small body with one or more buttons and a pointing device, such as a ball or a trackball, that can be moved to control the cursor's movement. Some mice have additional buttons that perform specific functions, such as right-clicking or scrolling.

Mice can be connected to the computer using a variety of interfaces, such as USB, Bluetooth, and wireless. They come in various sizes and shapes; some are designed for specific purposes, such as gaming or economic use. Place your palm on the mouse's body and moves the pointing device to control the cursor's movement on the screen. Buttons on the mouse can be clicked to select items or perform other actions within the user interface. Some mice have additional buttons or features, such as a scroll wheel or a touchpad. The scroll wheel can use to perform specific functions.

Parts of Computers: Names, Definitions, and Images

3) Touchpad

The touchpad is a tiny, flat surface on the palm of a laptop computer. It controls the cursor on the screen by moving your finger across the touchpad in the desired direction. The touchpad usually responds to two types of input: movement and clicks. To move the cursor, you place your finger on the touchpad and slide it in the desired direction. To make a selection, you can either tap the touchpad with your finger (also known as a "tap to click") or press down on the touchpad with your finger and then release it (also known as a "click").

Some touchpads have additional features that allow you to perform more advanced actions. For example, many touchpads support multi-finger gestures, which allow you to perform certain actions by moving your fingers in specific patterns on the touchpad. For example, you can use a three-finger swipe to switch between open applications or a two-finger pinch to zoom in and out on a web page.

In addition to supporting basic movement and clicks, touchpads usually have buttons on the side or below the touchpad. These buttons can perform additional actions like right-clicking or scrolling through a webpage. Some touchpads also have a separate button for activating the touchpad itself. It can be useful if you want to disable the touchpad while typing or using an external pointing device, such as a mouse.

Parts of Computers: Names, Definitions, and Images

4) Microphone

A microphone, also known as a mic or mike, is a device that converts sound waves into an electrical current. It is commonly used to amplify or record sounds, such as a person's voice or music.

There are various types of microphones, each designed for specific purposes. For example, a dynamic microphone is commonly used for live performances, as it can handle high sound pressure levels and is resistant to feedback. On the contrary, a condenser microphone is more sensitive and is often used for recording music or podcasting.

Most microphones have a diaphragm, a thin material that vibrates when sound waves hit it. The diaphragm is connected to a transformer or preamplifier, which converts the mechanical energy of the diaphragm's vibrations into an electrical current. This electrical current is then sent to an amplifier or recording device, where it is amplified or recorded.

In addition to the type of microphone, there are also different pickup patterns to consider. A microphone with a cardioid pickup pattern is most sensitive to sound coming directly in front of it and less sensitive to sound coming from the sides and rear. This makes it a good choice for isolating a specific sound source, such as a person speaking into the microphone. Other pickup patterns include omnidirectional, which picks up sound equally from all directions, and figure-8, which takes sound from the front and back but not the sides.

Overall, microphones are an important tool for capturing and amplifying sound, and they are used in a wide variety of applications, including live performances, recordings, podcasts, teleconferences, and more.

Parts of Computers: Names, Definitions, and Images

5) Scanner

A scanner is a device used to digitize physical documents, photographs, and other media types. Scanners work by taking a digital image of the document or photograph and storing it on the computer. This allows users to create electronic copies of documents, photographs, and other media, which can be edited, shared, and stored on a computer or digital device.

Several scanners are available, including flatbed, sheet-fed, and handheld scanners. Flatbed scanners are the most common type to scan flat, single-page documents. Sheet-fed scanners scan multiple pages and are often used in offices and businesses. Handheld scanners are portable scanners that can be carried and used on the go.

Scanners use different technologies to digitize documents and media, including optical character recognition (OCR), which allows the scanner to recognize and interpret text, and image scanning, which captures a digital image of the document or photograph.

Scanners are useful tools for creating electronic copies of documents and media and digitizing physical documents and photographs for storage, editing, and sharing.

Parts of Computers: Names, Definitions, and Images

6) Monitor

A monitor displays visual information from a computer or other electronic device. It consists of a screen, a casing, and a power supply. The screen is typically a flat panel display, and it can be a liquid crystal display (LCD) or a cathode ray tube (CRT). The casing encloses the screen and the power supply and may include additional features, such as built-in speakers or a web camera.

Monitors are generally used with desktop computers, laptops, and other devices which require a visual display. They can display text, graphics, and video and are often used to view documents, browse the internet, watch movies, and play games. Monitors come in various sizes, resolutions, and aspect ratios, and some models are designed for specific tasks, such as gaming or professional graphics work.

There are several types of monitors, including:

  • CRT monitors: These are the traditional monitors in which cathode ray is used to display images. They are generally large and heavy, but they can display high-quality images and have a wide viewing angle.
  • LCD monitors: These monitors use liquid crystals to display images and are much thinner and lighter than CRT monitors. They are commonly used in laptops and other portable devices and are also popular for desktop computers.
  • LED monitors: These monitors use light-emitting diodes (LEDs) to backlight the LCD screen, which can result in a brighter and more energy-efficient display.
  • OLED monitors: These monitors use organic light-emitting diodes (OLEDs) to create the display, resulting in high-quality images with deep blacks and wide viewing angles.
  • Touchscreen monitors: These monitors have a touch-sensitive screen that allows users to interact with the display using their fingers or a stylus. They are often used in devices such as tablets and smartphones.
Parts of Computers: Names, Definitions, and Images

7) Printer

A printer produces a physical copy of digital documents or images. Printers are commonly used to print text documents, photos, labels, and other media types.

Parts of Computers: Names, Definitions, and Images

There are several types of printers, including:

  • Inkjet printers: These printers use small jets of ink to produce images and text on paper. They are commonly used for home and office printing and can produce high-quality color prints.
  • Laser printers: These printers use a laser to produce an image on a drum, which is then transferred to paper. They are fast, efficient, and commonly used in offices to print large text documents.
  • Thermal printers: These printers use heat to produce an image on special thermal paper. They are commonly used in point-of-sale systems, label printers, and photo printers.
  • Dot matrix printers: These printers use a matrix of tiny pins to produce an image by striking an inked ribbon against the paper. They are no longer as common as they used to be, but they are still used in some industrial and point-of-sale applications because of their low cost and ability to print on multi-part forms.

Printers can be connected to a computer or other device through various methods, including USB, Ethernet, and Wi-Fi. Some printers also can scan, copy, and fax documents in addition to printing.

8) Speaker

Speakers are output devices that produce sound. They are used in various electronic devices, including computers, smartphones, televisions, and home theatre systems. Speakers contain a driver, a small device that converts an electrical signal into sound waves, and an enclosure, which houses the driver and shapes the sound.

There are several types of speakers, including:

  • Stereo speakers: These speakers contain two drivers, one driver for the left and the other for the right, which produce a stereo soundstage. They are commonly used with music and movie systems.
  • Surround sound speakers: These speakers contain multiple drivers, usually five or more, arranged in a specific configuration to produce a multi-channel surround sound experience. They are commonly used with home theater systems.
  • Portable speakers: These are small, portable speakers that can be carried with you and used with various devices. They are often Bluetooth-enabled and can be used on the left to play music from a phone or other device.
  • Computer speakers: These are small speakers designed to be used with a computer. They may be built into the computer monitor or be a separate device connected to the computer via USB or a headphone jack.
Parts of Computers: Names, Definitions, and Images

9) CPU

A CPU, or central processing unit, is a computer's primary component responsible for executing instructions and performing calculations. It is often referred to as the "brain" of the computer because it controls all the other components and processes information.

It consists of transistors and tiny electronic switches representing the 1s and 0s of binary data when turned on and off, respectively. The CPU reads instructions from memory and executes them by performing calculations and accessing other parts of the computer. It can also communicate with other devices, such as input and output, to perform tasks and exchange data.

There are two types of CPUs: single-core, which only have one processing unit, and multi-core, which have two or more. Multi-core CPUs are more powerful and efficient because they can process multiple instructions simultaneously, known as parallel processing.

The CPU speed is measured in hertz, the number of cycles it can perform per second. Higher hertz means faster processing speed. CPUs can also be differentiated by the number of bits they can process simultaneously, with 32-bit and 64-bit being the most common.

In conclusion, the CPU is a critical computer component responsible for executing instructions and performing calculations. It is made up of transistors and can be single-core or multi-core, with higher hertz and bit counts indicating faster-processing speed.

Parts of Computers: Names, Definitions, and Images

10) Memory

Memory, also referred to as RAM (random access memory), is a vital computer component that stores data and instructions for the central processing unit (CPU) to access. It acts as a temporary workspace for the CPU, allowing it to retrieve and modify data as needed quickly.

There are two main types of memory: volatile and non-volatile. Volatile memory, such as RAM, is temporary and is lost when the computer power is cut off. Non-volatile memory, such as a hard drive or solid-state drive (SSD), is permanent and retains data even when the power is off.

RAM is measured in capacity, typically in megabytes (MB) or gigabytes (GB). The capacity to store data is directly proportional to the amount of MB/GB. A computer running low on RAM may slow down or crash because the CPU has to access data from the hard drive, which is slower than accessing data from RAM.

In conclusion, memory, or RAM, is a vital component of a computer that stores data and instructions for the CPU to access. It comes in two main types: volatile and non-volatile, with RAM being temporary and hard drives or SSDs being permanent. The amount of RAM a computer has affects its performance, with more RAM allowing faster data access.

Parts of Computers: Names, Definitions, and Images

11) Motherboard

Motherboards are the main circuit board in a computer, containing the connectors for the processor, memory, and other peripherals. They are also responsible for providing power to the computer's various components and communicating with the other peripherals.

The motherboard is an essential component of any computer system, as it is the hub for all other hardware components. It connects the processor, memory, storage drives, and other peripherals, allowing them to communicate with each other and the operating system.

Several different motherboards are available, each designed to work with a specific processor and system architecture. Some common types of motherboards include ATX, microATX, and Mini-ITX.

ATX motherboards are the most common type used in most desktop computers. They are larger and have more connectors and expansion slots than other motherboards.

MicroATX motherboards are smaller than ATX motherboards and are often used in smaller form factor cases. They have fewer connectors and expansion slots but can still support most hardware components.

Mini-ITX motherboards are the smallest type, making them suitable for compact systems such as small form factor PCs and home theater systems. They have the fewest connectors and expansion slots but can still support most hardware components.

In addition to the size and type of motherboard, there are a few other key factors to consider when selecting a motherboard for your system. These include the socket type, the number of RAM slots, and the number of expansion slots.

The socket type refers to the type of processor that the motherboard is designed to support. Different processors require different sockets, so it is important to ensure that the motherboard you choose is compatible with the processor you want to use.

The amount of RAM slots on a motherboard determines the maximum amount of memory that can be installed. Most motherboards have a minimum of two RAM slots, but some have four or more.

The number of expansion slots on a motherboard determines the maximum number of hardware components that can be added to the system. These slots can be used for various purposes, such as adding a graphics card or additional storage drives.

In conclusion, the motherboard is a crucial component of any computer system, as it is the hub for all other hardware components. Choosing a motherboard compatible with the processor and other hardware you want to use is important, with enough connectors and expansion slots to meet your needs.

Parts of Computers: Names, Definitions, and Images

12) Power Supply

A power supply is a device that provides power to an electrical device or system. It converts one form of electrical energy into another, typically converting AC (alternating current) electricity from the wall outlet into DC (direct current) electricity used by the device. Several power supplies exist, including ATX, SFX, and TFX. ATX power supplies are the most common type used in most desktop computers. SFX power supplies are smaller and are often used in small form factor cases, while TFX power supplies are even smaller and are designed for use in thin clients and other compact systems.

In addition to the size and type of power supply, there are a few other key factors to consider when selecting a power supply for your system. These include the wattage, efficiency rating, and connectors. The wattage of a power supply determines how much power it can provide to the system. It is necessary to choose a power supply with a wattage that is sufficient for the system's needs, as a power supply that is too weak will not be able to provide enough power to all of the components. At the same time, a power supply that is too strong will be a waste of money and may not be used to its full capacity.

The efficiency rating of a power supply specifies how well it converts AC electricity into DC electricity. Power supplies with a higher efficiency rating will produce less heat and waste less energy, making them more environmentally friendly and more cost-effective in the long run.

The connectors on a power supply are used to connect the power supply to the various components of the system. It is important to ensure that the power supply has the correct connectors for the components you want to use and enough connectors to meet your needs.

In conclusion, the power supply is essential to any computer system, providing the power needed to run the various components. Choosing a power supply compatible with the system with sufficient wattage, a high-efficiency rating, and the correct connectors are important.

Parts of Computers: Names, Definitions, and Images

13) Modem

A modem is a device that enables a computer to transmit data over a telephone line or other communications channel. It converts digital signals from the computer into analog signals transmitted over a phone line. It then converts the incoming analog signals back into digital signals that the computer can understand.

There are two main types of modems: external and internal. External modems are standalone devices connected to the computer via a USB or Ethernet cable, while internal modems are installed inside the computer and connect to the motherboard. Modems connect computers to the internet, allowing them to access websites, send and receive emails, and perform other online activities. They are also used to connect computers to other devices, such as printers, and to connect multiple computers to create a local area network (LAN).

In addition to the type of modem, there are a few other key factors to consider when selecting a modem for your system. These include speed, compatibility, and features. The speed of a modem determines how quickly it can transmit data. Modems are typically rated in bits per second (bps), with faster modems capable of transmitting data at higher speeds.

Compatibility is an important factor to consider when selecting a modem, as it must be compatible with the computer and the communications channel it will be using. It is important to ensure that the modem is compatible with the operating system and the internet connection you will be using.

Modems may also have various features, such as support for different protocols, built-in firewalls, and the ability to connect to multiple devices. It is important to consider which features are important to you and choose a modem with the features you need.

In conclusion, a modem is a device that enables a computer to transfer data over a telephone line or other communications channel. Choosing a modem compatible with the computer and the communications channel, sufficient speed, and the features you need are important.

Parts of Computers: Names, Definitions, and Images