Do you want to know whether Light Pen is Input or Output Devices in Computer System with Images and Examples, types, advantages?
Mr Ben Gurley invented the first light pen in the year 1959. The light pen, at this time still called "light gun".
The light pen is an input device of a computer system.
What is a Light Pen in Computer System with Examples and Images?
The light pen is a computer input device resembling a pen used to read bar codes, also capable of pointing at the object and characters on the monitor screen.
The light pen helps users make and modify changes in the drawings. It is also considered a handheld light-sensitive device known as a “Pointing Device“.
The light pen is used to command the computer system for performing specific and special operations.
They are also called “Electronic Pen”.
It is a pointing device that can be used as a computer mouse to point, select, and drag elements on the computer screen.
The light pen consists of light sensors used when it is touched and shown to the computer screen. It is used in selecting and drawing pictures that also distinguish the cursor’s position.
It is typically used as a part of CAD (Computer-Aided Design), where the client selects something on the screen.
Modern light pens are available in wireless technology. Due to the contemporary development in technology, they have easily replaced their counterparts.
They are plug-and-play devices that do not need driver’s files to install and use.
Light Pen is Input or Output Device in Computer System
I have been asked numerous times whether a light pen is an input or output device.
The answer is light pen is an input device of the computer system.
There are two types of devices in a computer system they are
- Input Devices
- Output Devices
Input Devices
The input devices are computer hardware devices that accept data, information, and instructions from users in the raw form later; this data is converted into machine language as computers understand only binary language.
Further operation is done in the system later; the data and information is transferred to the output devices for output.
Examples
- Keyboard
- Mouse
- Scanner
- Joystick
- Touch Screens
- Optical Card Reader (OCR)
- Magnetic Ink Character Recognition (MICR)
- Optical Bar Code Reader (OBR)
- Voice Recognition Devices
- Optical Mark Reader (OMR).
Output Devices
The output devices of the computer system are responsible for presenting output in the form of hard copy.
The outputs received from these output devices are in human-readable form.
Examples of Output Devices of Computer
- Monitors
- Touch Screens
- LCD Monitors or LED Monitors
- Printers
- Speakers
- Headphones
- Sound Cards
- Plotters
- Projectors
Different Types of Light Pen
There are four different types of the light pen they are
- Corded Light Pen
- LED Light Pen
- Design Light Pen
- Battery Light Pen
What is the Use of Light Pen
- The light pen is used in graphic designing
- They are also used in CAD {Computer Aided Design}.
- They are used in drawing on computers, laptops, tablets, and mobile screens.
- The light pen can be used in presentations and slides.
- A light pen can be used as a pointing device.
- They can easily highlight or select any text or graphic on the screen of computers and laptops.
Light Pen is Input or Output Devices With Images
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Benefits and Advantages of Light Pen in Points
- The light pen can highlight or select text directly on the computer screen.
- The light pen is used in CAD for fine drawing and precise selection.
- They are more accurate and comparatively fast than a mouse or any other pointing device.
- They are more sensitive than a mouse.
- Therefore, they have unique features and are more prevalent in drawing tasks or jobs.
- They are used in presentations.
- They are trendy among professionals.
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