Light Pen A light pen is a light-sensitive pen-like device used by pointing it at the display surface. Input Devices of Computer: Definition & Examples ... A light pen is a pointing device that can be used to select an option by simply pointing at it, or to draw figures directly on the screen. Input Devices in Computer - Tutorialspoint Keyboard. Light pen c. Digitizing tablet d. Scanner. 5. A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. It is normally like a pen and is used to directly point at the objects seen on the screen. 5. A light pen is another pointing device that has the same structure as a pen. Happy coding from The Codingbus. The Wii® remote, which works only with the Nintendo® Wii® console, may be considered a special type of pointing device. Different type of devices that have connected hardware to track the device and find out x and y values, the light pen . Light pen is a pointing device similar to a pen. Light pen is a pointing device which is similar to a pen. Trackball Input device Joystick. Input Devices MCQ Questions And Answers. devices Upvote12Downvote1ShareAnswer itKeyboard.Image scanner.Microphone.Pointing device. asked Jun 6, 2020 in Input/Output and Storage Devices by MuskanVerma ( 59.1k points) A pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to move the mouse cursor in a computer program or GUI operating system. Light Pen It is a pointing device. Light pen (pen) Meaning and Functions of Light Pen: A light pen is a pointing device that can detect the presence of light. Used with a CRT monitor, these devices were an early form of manipulating and highlighting data on the screen. Light pens have the advantage of drawing directly on to the screen. It is a light-sensitive device consisting of a photocell and an optical system placed in a small tube. A light pen is a pointing device that can be used to select anything on the computer screen by simply pointing at it or for drawing figures directly on the screen. It is used to select a displayed menu item or draw pictures on the monitor screen. Traditional or mechanical mouse. Different type of devices that have connected hardware to track the device and find out x and y values, the light pen . Pointing stick is normally used with notebook computers. It consists of a photocell and an optical system placed in a small tube. In the picture, is an example of a woman using a light pen to highlight text on the screen. It is mainly used to select on-screen items, draw pictures, and write independently in document files using a computer screen. Keyboard is among the most common and popular input device . 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. on a touch screen computer. It is usually used for designing engineering designs. Which of the following input device is not a pointing device? Used with a CRT monitor, these devices were an early form of manipulating and highlighting data on the screen. 4.Light Pen. Light Pen : It is a pointing input device with a photo detector or light source works on a specially designed screen. The light pen has a light sensor once the user touched the screen with the help of a light pen a signal is generated for further . Keyboard. Pointing stick . It consists of a photocell and an optical system placed in a small tube. The Codingbus is a hubspot for all the tech-savy people. The joystick can be moved in all four directions 9/9/2019 Designed by:INGAMULE SIRAJI 8 The Joy stick 9/9/2019 Designed by:INGAMULE SIRAJI 9 Light Pen Light pen is a pointing device similar to a pen. It is used to select a displayed menu item or draw pictures on the monitor screen. Light pen is a pointing device which is similar to a pen. Light-pen is a pointing device that senses the light from the ray forming those lines on a monitor; it senses light ray at a certan time since the ray started its path, and acording to that time it calculates and determines where you placed the pen on screen at that point in time - that information is sent back to computer and it places the . Light Pen. working with htm. Used with a CRT monitor, these devices were an early form of manipulating and highlighting data on the screen. interne. With the help of a Light pen, you can draw very easily. It can be utilized much like a normal pen, used to write or draw in computer software programs. A light pen is another pointing device that has the same structure as a pen. 639. fundamentals of compute. 150. . Light Pen: A light pen is a pointing device shaped like a pen and it is connected to the computer. Light pen is a pointing device which is similar to a pen. - Light pen - This is a pointing device consisting of a small rod that looks like a pen. Connecting you to a tutor in 60 seconds. A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. It consists of a photocell and an optical system placed in a small tube. microsoft exce. Mouse is the most popular pointing device. A light pen is a device used as a pointing device or to 'write' on the screen of a computer. Input Devices Pointing Devices 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 CRT display. It allows the user to point to displayed . The light pen is the computer input device which is used in conjunction with the computer's cathode ray tube display. Pointing stick is a pressure-sensitive device. A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. It consists of a photocell and an optical system placed in a small tube. It allows the user to point the displayed objects or draw on the screen with the greater positional accuracy. For years, multiple manufacturers have been producing genuinely wonderful laser pointer pen with excellent quality, performance, and longevity while keeping consumer ease in mind. A light pen is an example of A A pointing device. CAD systems and graphical user interfaces (GUI) allow the pointing devices to act as the user wants. Due to its shape like a pen, it is very easy to use. • A pointing device is an input device that allows the user to move the pointer (cursor) on the screen. Source: Online General Knolwedge. It consists of a photocell and an optical system placed in a small tube. Light Pen. It demands no extra space or cleaning like a mouse. You simply roll the moveable ball on top of the trackball. Light pen is also a pointing device. Track ball is rarely used in place of a mouse. When the tip of a light pen is moved over the monitor screen and pen button is pressed, its photocell sensing element . Track Ball: The trackball is similar to a mouse instead of moving the whole device. For example, using a pointing device you could point at and select an icon from a list of icons. A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. the tip of the pen has a light detector that senses the intensity of light on a screen and emit signals so that the computer can calculate its position. OMR (Optical Mark Recognition) Which kind of device reads "bubble" marks and converts them into computer-usable form? A device used for video games, flight simulators, training simulators and for controlling industrial robots. Track Ball. Optical. The light pen is the computer input device which is used in conjunction with the computer's cathode ray tube display. Used with a CRT monitor, these devices were an early form of manipulating and highlighting data on the screen. A light pen is a pointing device used to read and write information on the screen. Mouse. Answer (1 of 2): A light pen nowadays means a pointing pen with a sensitive pad connected to the computer. Answer (1 of 2): Yes, although not a very good one - and they generally only work with old-school cathode ray tubes. Now, provide one line definition of each device. A light pen has photo-detector at its tip. This has a light sensitive tip that is excited while the light is emitted and an illuminated point upon the display comes in its field of view. The Light Pen has a connection with the device by a wire. Working : It has a switch and a cord that connects it to computer while some pens also have built in switches that activates when pressed on the screen. We love to share our work all the people around us who want to learn. It consists of a photocell and an optical system placed in a small tube. It can also assist you in drawing on the screen if necessary. Mouse. Light pen. It is a pointing device. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) It can be use to direct the audience's attention to a specific area, such as a picture or text in a presentation. NULL. It consists of a photocell and an optical system placed in a small tube. The tip of the light pen contains a light-sensitive element which placed against the screen, detects the light from the screen enabling the computer to identify the location of the pen on the screen. Light Pen. Light Pen. The light pen is a very focuse flashlight-type device or a laser pointer. A light pen can work with any CRT-based display, but its ability to be used with LCDs was unclear (though . It is just like a pen connected to a VDU. Light Pen. Light Pen . Touch Screen. In the picture is an example of a woman using a light pen to highlight text on the screen. Light pen is a pointing device similar to a pen. What is a light pen? Just like the mouse , Joystick is also a pointing device, which is used to move cursor position. Optical mouse. The tip of the light pen contains a light sensitive element which when placed against the screen, detects the light from the screen enabling the computer to identify the location of the pen on the screen. CAD systems and graphical user interfaces (GUI) allow the user to control and provide data to the computer using physical gestures by moving a hand-held mouse or similar device across the surface of the physical desktop and activating switches on the mouse. Track Ball. Light pen is a pointing device similar to a pen. A "pointing device" can also refer to a special "stick" (sometimes telescopic, to reduce the length when not in use), or a lamp with a narrow light beam that is pointed at a map, blackboard, slide . Light Pen. 5. Lightpen is a pointing device similar to a pen. It is used to select a displayed menu item or draw pictures on the monitor screen. When the user pushes the pointing stick, the pointer on the screen also moves. Digitizer. Light Pen. Scanner. Correct Answer of this Question is : Input Devices MCQs : This section focuses on "Input Devices" in Computer Fundamentals. It is a light-sensitive device consisting of a photocell and an optical system placed in a small tube. Light pen - input and output devices, Computer Graphics. It consists of a photocell and an optical system placed in a small tube. D) Optical output device, 5. - Can be used to select and highlight text on the screen - The manifestation of the embodiment of light concentrated into a small pen for the convenience of incinerating people who dare go near it. When the tip of a light pen is moved over the monitor screen and pen button is pressed, its photocell sensing element . • 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. A light pen is another pointing device that can be used in the computer. When the tip of a light pen is moved over the monitor screen and the pen button is pressed, its photocell sensing element This has a light sensitive tip that is excited while the light is emitted and an illuminated point upon the display comes in its field of view. Digitizer. Which of these is NOT a pointing device?-light pen -touchpad -trackball -scanner. Mouse b. It works like a mouse. Keyboard is the most common and very popular input device which helps to input data to the computer. Input device. It is a pointing device. Light Pen. A pointing device is a human interface device that allows a user to input spatial (i.e., continuous and multi-dimensional) data to a computer. A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. Microphone. A mouse is a . 3. It is used to select a displayed menu item or draw pictures on the monitor screen. The item's position is detected by its light-sensitive tip, which transmits the appropriate signals to the CPU. The light pen consist of a photocell mounted in a pen shaped tube and is capable of sensing a position on the screen when its tip touches the screen. Joystick. Light pens are used by health care professionals (such as doctors and dentists) and design work. As a result, we've included the best laser pointer pen - Ultimate Reviews to assist you in rapidly finding…Continue Reading Best Laser Pointer . a. Joystick b. , Options is : 1. It consists of a photocell and an optical system placed in a small tube. When its tip is moved over the monitor screen, and pen button is pressed, its photocell sensing element detects the screen . Which is used to do graphic design, text message, etc. Traditional or mechanical mouse has a cable connected to the computer. The light pen can be a very focused flashlight-type of device or a laser pointer. As the old-style cathode ray tube scanned the screen, line by line - the light pen would produce a pulse of electricity as the bright spot passed under it's tip. Graphics tablet. A optical mouse uses a LED to detect the position of the mouse on your desk/ table. A pointing device is that which helps you move the cursor on your screen and helps you choose an item and by clicking it also gives you multiple options for the next action. It is mainly used to select on-screen items, draw pictures, and write independently in document files using a computer screen. Scanner. Get answers to your doubts. It is used to select a displayed menu item or draw pictures on the monitor screen. It is used to select a displayed menu item or draw pictures on the monitor screen. A graphics tablet is a pointing device which uses the pressure of a stylus pen to draw thick or thin lines, you can also use it as a pointing device to control the mouse cursor so you don't have to switch between the mouse and the graphics tablet each time you want to select an option from the drop-down menus. Joystick. Light Pen. It is used to select a displayed menu item or draw pictures on the monitor screen. a. Light Pen. The most often used pointing devices include the computer mouse, the joystick, the trackball, the light pen, the stylus and graphics tablet, the touch screen, the touchpad or trackpad, and the pointing stick. B) Optical input device, 3.C) Electronic input device, 4. These Multiple Choice Questions (MCQ) should be practiced to improve the Computer Fundamentals skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations. It consists of a photocell and an optical system placed in a small tube. The light pen looks like a pen that is used for drawing pictures on the screen this device is also one of the important pointing devices which are used very extensively in presentations and graphics slide show. A) Mechanical Input device, 2. Light pen c. Touch pad d. . The light emitting component can generate a flashing light source whose intermittence cycle is synchronized with the reference clock cycle of the system signal. Light pen is a pointing device which is similar to a pen. An optical pen can also be used as a normal mouse, as it has a trackball with which to move objects and buttons with which to click. It is used to select a displayed menu item or draw pictures on the monitor screen. Question is : What is a light pen? Touchpad - a small, flat and rectangular pointing device . A light pen may refer to any of the following:. The signal receiving interface is used to receive a system signal from the input apparatus. It is similar to a pencil eraser and exits between keys on the keyboard. A user brings the light pen to the desired point on the screen and presses a button, causing it to identify the current location. It is used to select a displayed menu item or draw pictures on the monitor screen. A light pen is also a pointing device that can be used to select an option by simply pointing at it. Light Pen. Still available and used for graphics where using a mouse is difficult. Similar Topics. Input Devices. It is an input device that allows users to capture sound waves and transfer them in digital format to the computer. Joystick is also a pointing device, which is used to move the cursor position on a monitor screen. When a user taps the pen on certain areas of a specially designed panel, the pen sends details to the device. When the tip of a light pen is moved over the monitor screen and pen button is pressed, its photocell sensing element detects the . Pointing devices and its features. The lower spherical ball moves in a socket. 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 (CRT) display.. Mouse is a cursor-control device . networkin. It is a pointing input device. Light Pen . Using a pointing device, you can point at or manipulate any object or text on the screen. The light pen's tip has a light-sensitive detector that allows users to pick items on the display screen by pointing to them. This detector can detect changes in brightness of the screen. These were some of the basic input and output devices that every computer has. What is light pen in computer. It can also be used to draw figures on the screen. Used with a CRT monitor, these devices were an early form of manipulating and highlighting data on the screen. This stylus is light-sensitive. It is used to select options from a menu or to draw images. It is used to select a displayed menu item or draw pictures on the monitor screen. It was used for the older CRT monitors to highlight the text on the screen. In the picture is an example of a woman using a light pen to highlight text on the screen. A monitor usually comprises a visual display, some circuitry, a casing, and a power supply.The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) with LED backlighting having replaced cold-cathode fluorescent lamp (CCFL) backlighting. A light pointing device employed in an input apparatus comprises a signal receiving interface and a light emitting component. Look at your school computer and list 3 input and 3 output devices. B Input-output device. The computer cou. Light pen is a pointing device similar to a pen. Light Pen (similar to the pen) is a pointing device which is used to select a displayed menu item or draw pictures on the monitor screen. Not all of these laser pointer pen, however, will fit your needs. Light Pen. An optical pen is a lightweight, pen-shaped pointing device. Examples of pointing devices include mouse, trackball, joystick, touchpad, and light pen. SOLUTION • Microphone is not a pointing device. Light pen is a pointing device similar to a pen. digitizer. A light pen is a pen-like device that is hand-held. The term light pen can also refer to a pointing input device that uses a light that is commonly use during a presentation. When the pen is pointed at a particular spot on the screen, it records change in brightness . The first light pen was developed around 1955 as part of the Whirlwind project at MIT. The codingbus has its own youtube channel where you can find all our blogs and tutorials. This is a Most important question of gk exam. 1. Which pointing device uses a mouse like copying apparatus called a puck to convert drawings to digital data? Now, provide one line definition of each device 1955 as part of the trackball any display. Line definition of each device very popular input device < a href= '' https: //ask-public.com/155927/ >! Around 1955 as part of the status listed. normally like a normal pen, used to on-screen... 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