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COMPUTER HARDWARE
COMPUTER HARDWARE Is the physical components of the computer , Refers to the tangible ( things you can touch ) components of computer system.
Hardware components are further divided into three groups 1 = INPUT DEVICES 2 = OUTPUT DEVICES 3 = SYSTEM UNIT
1 = INPUT DEVICES An input devices lets you communicate whit a computer . You can input devices to enter information and issue commands. In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.
1 = KEYBOARD In computing, a computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input method for computers.
2 = MOUSE A computer mouse is a hand- held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface
3 = JOYSTICK A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal control device in the cockpit of many civilian and military aircraft, either as a center stick or side-stick.
4 = TRACKBALL A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes like an upside-down mouse with an exposed protruding ball.
5 = LIGHT PEN A light pen is a computer input device in the form of a light- sensitive wand used in conjunction with a computer's cathode-ray tube display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
6 = SCANNER An image scanneroften abbreviated to just scanner, although the term is ambiguous out of context is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.
7 = MICROPHONE A microphone is a device that translates sound vibrations in the air into electronic signals or scribes them to a recording medium. Microphones enable many types of audio recording devices for purposes including communications of many kinds, as well as music and speech recording.
2 = OUTPUT DEVICES An output devices displays information on a screen , creates printed copies or generates sound An output device is any piece of computer hardware equipment which converts information into human-readable form. In brief, output unit is responsible for providing the output in user readable form. It can be text, graphics, tactile, audio, and video.
1 = PRINTER A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printersvary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.
1 = INKJET Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of inkonto paper, plastic, or other substrates. Inkjet printersare the most commonly used type of printer, and range from small inexpensive consumer models to expensive professional machines.
2 = LASER A laser printer is a type of printer that uses a laser and electrical charge model instead of the traditional printing of ink onto paper.Laser printers have increased the neatness and sophistication of print projects, with typical resolutions of 600 dots per inch or higher.
3 = IMPACT Impact printer refers to a class of printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy- wheel printers, and line printers.
2 = MONITOR A computer monitor is an output device that displaysinformation in pictorial form. A monitor usually comprises the display device, circuitry, casing, and power supply. ... Oldermonitors used a cathode ray tube (CRT).
3 = MULTIMEDIA Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content.Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand- produced material.
4 = SPEAKER A speaker is a term used to describe the user who is giving vocal commands to a software program. 2. A computer speaker is a hardware device that connects to a computer to generate sound. The signal used to produce the sound that comes from a computer speaker is created by the computer's sound card.
3 = SYSTEM UNIT System Unit. The system unit, also known as a "tower" or "chassis," is the main part of a desktop computer. It includes the motherboard, CPU, RAM, and other components. The system unit also includes the case that houses the internal components of the computer.
1 = MOTHERBOARD A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.
2 = IDE SATA IDE and SATA are different types of interfaces to connect storage devices (like hard drives) to a computer's system bus. SATA stands for Serial Advanced Technology Attachment (or Serial ATA) and IDE is also called Parallel ATA or PATA. SATA is the newer standard and SATA drives are ...
3 = HARD DISK A hard disk drive, hard disk, hard drive, or fixed disk, is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks coated with magnetic material

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computer hardware

  • 2. COMPUTER HARDWARE Is the physical components of the computer , Refers to the tangible ( things you can touch ) components of computer system.
  • 3. Hardware components are further divided into three groups 1 = INPUT DEVICES 2 = OUTPUT DEVICES 3 = SYSTEM UNIT
  • 4. 1 = INPUT DEVICES An input devices lets you communicate whit a computer . You can input devices to enter information and issue commands. In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.
  • 5. 1 = KEYBOARD In computing, a computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input method for computers.
  • 6. 2 = MOUSE A computer mouse is a hand- held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface
  • 7. 3 = JOYSTICK A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal control device in the cockpit of many civilian and military aircraft, either as a center stick or side-stick.
  • 8. 4 = TRACKBALL A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes like an upside-down mouse with an exposed protruding ball.
  • 9. 5 = LIGHT PEN A light pen is a computer input device in the form of a light- sensitive wand used in conjunction with a computer's cathode-ray tube display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
  • 10. 6 = SCANNER An image scanneroften abbreviated to just scanner, although the term is ambiguous out of context is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.
  • 11. 7 = MICROPHONE A microphone is a device that translates sound vibrations in the air into electronic signals or scribes them to a recording medium. Microphones enable many types of audio recording devices for purposes including communications of many kinds, as well as music and speech recording.
  • 12. 2 = OUTPUT DEVICES An output devices displays information on a screen , creates printed copies or generates sound An output device is any piece of computer hardware equipment which converts information into human-readable form. In brief, output unit is responsible for providing the output in user readable form. It can be text, graphics, tactile, audio, and video.
  • 13. 1 = PRINTER A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printersvary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.
  • 14. 1 = INKJET Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of inkonto paper, plastic, or other substrates. Inkjet printersare the most commonly used type of printer, and range from small inexpensive consumer models to expensive professional machines.
  • 15. 2 = LASER A laser printer is a type of printer that uses a laser and electrical charge model instead of the traditional printing of ink onto paper.Laser printers have increased the neatness and sophistication of print projects, with typical resolutions of 600 dots per inch or higher.
  • 16. 3 = IMPACT Impact printer refers to a class of printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy- wheel printers, and line printers.
  • 17. 2 = MONITOR A computer monitor is an output device that displaysinformation in pictorial form. A monitor usually comprises the display device, circuitry, casing, and power supply. ... Oldermonitors used a cathode ray tube (CRT).
  • 18. 3 = MULTIMEDIA Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content.Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand- produced material.
  • 19. 4 = SPEAKER A speaker is a term used to describe the user who is giving vocal commands to a software program. 2. A computer speaker is a hardware device that connects to a computer to generate sound. The signal used to produce the sound that comes from a computer speaker is created by the computer's sound card.
  • 20. 3 = SYSTEM UNIT System Unit. The system unit, also known as a "tower" or "chassis," is the main part of a desktop computer. It includes the motherboard, CPU, RAM, and other components. The system unit also includes the case that houses the internal components of the computer.
  • 21. 1 = MOTHERBOARD A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.
  • 22. 2 = IDE SATA IDE and SATA are different types of interfaces to connect storage devices (like hard drives) to a computer's system bus. SATA stands for Serial Advanced Technology Attachment (or Serial ATA) and IDE is also called Parallel ATA or PATA. SATA is the newer standard and SATA drives are ...
  • 23. 3 = HARD DISK A hard disk drive, hard disk, hard drive, or fixed disk, is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks coated with magnetic material