DMD full form

What is the full form of DMD?


Answer:

  • Digital Micrometer Device

What does DMD mean?


The DMD is the micro-opto-electromechanical system that is the core of the trademarked DLP projection technology from the texas instruments. This document describes how one mirror or pixel, work. It also explains how rows, blocks, or frames of data can be loaded to an entire DMD array. This information specifically applies to DMD with ∓ 12-degree tilt angle states organized in the orthogonal micromirror array that is part of the advanced light control portfolio of DLP products.

DLP projector full form

What is the full form of the DLP projector?


Answer:

  • Digital Light Processing


What does the DLP projector mean?


DLP technology is a reflective projection method that uses merges a micro electrochemical system. its projection with the help of a digital micrometer device microchip. DLP is seen in standalone projection units, in rear-projection TVs, and in a majority of a digital cinema projection. DLP projector is suitable when the users are to display data with low-cost investment.

DVI full form

What is the full form of DVI?

 
Answer:

    • Digital Visual Interference

What does DVI mean?


DVI as a video interface standard designed to provide too much very high visual quality on digital display devices such as flat panel LCD computer displays as well as digital projectors display. This visual display interface was first developed by digital display working group (DDWG). Hardware manufacture, display product, and application developer who rely on good visual production as well as the consumer market as a whole. we call this common style. In the latest digital display working group to replace the legacy analog technology VGA connector standard.

Difference Between Impact and Non-impact Printers

The main key difference between the impact and non-impact printers is that impact printers involve the image produced with the help of an electromechanical impact device while in a non-impact printer, there is no mechanical impact device is used. So here this article gives information about the main key difference between impact and non-impact printer to better 

Definition of impact printer 


Impact printers are printer which works by creating direct contact between ink ribbon and paper. These printers are noisy yet popular. The impact printer has a mechanical moving part to conduct printing. 


Definition of non-impact printers


The non-impact printer does not use any direct contact between the ink ribbon and paper. They use laser, electrostatic, chemical, or inkjet technology. These printers are less noisy and don't have a mechanical part to conduct printing.

Difference between impact and non-impact printer


  • Impact printer is used old printing technologies, while in a non-impact printer uses the latest printing technologies.
  • Impact printers are often less expensive, while in a non-impact printer are often very expensive when compared to impact printers.
  • Impact printer uses continuous paper sheets, while in non-impact printers use individual paper sheets.
  • The character style of impact printer with exception of dot matrix, the character style cannot be changed in the impact printer, while in a non-impact printer can print different types of character form busing the individual printer.
  • The impact printer has a high level of noise. While in non-impact printers do not high level of noise.
  • Impact printer as with exception of dot matrix printer, impact printer cannot print graphics images, while in non-impact printing of graphical images in the non-impact printer is very much possible.
  • Printing process use only pin, hammer, or wheel to strike against an inked ribbon to print on a paper, while in non-impact printer use laser, a spray of special ink or heat and pressure to print on a paper.
  • Impact printer print quality of impact printer is lower than those of non-impact printer. While non-impact printer print quality of a non-impact printer is higher than those of impact printers.
  • The impact printer is a low-speed printer. They consume a lot of time to print a document, Non-impact printer is very fast. They can print pages per minute.
  • Impact printers are of a single color while in non-impact printers have a huge variety of color options.

CCFL full form

What is the full form of CCFL?


Answer:

  • Cold Cathode Fluorescent Light 

What does CCFL mean?


CCFL uses two phenomena called electron discharge and fluorescence. CCFL is mainly used as light sources for backlights because they are smaller and have longer lifetimes than ordinary fluorescent lamps. A wide range of brightness and the color can be achieved by varying the type and applying the pressure of the material injected into the glass tube, as well as the thickness and the type of the phosphor used to coat the inner wall of the tube. Nowadays CCFL is mainly used light source for scanner and backlight LCD televisions, LCD monitors, and the light fixtures.

OLED full form

What is the full form of OLED?


Answer:

  • Organic Light Emitting Diode

What does OLED mean?


OLED is a type of light-emitting diode, It is created by sandwiching semiconducting organic layers between two electrodes. In OLED, pixels emit their own light and thus do not require backlighting. The OLEDs are categorized into 2 groups first one that uses small size molecules and the second one that used polymers. The screen of TVs, PC monitors, mobile screens, and other electronic device screens are manufactured with the organic LED for digital display.


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LCD full form

What is the full form of LCD?


Answer:

  • Liquid Crystal Display

What does LCD mean?


LCD is a flat panel display technology. It is mainly used in TVs and computer monitors, calculators, watches, a notebook, etc. Nowadays it is used for mobile phones also. These LCDs are completely different from the old CRT display, It uses liquid crystals instead of cathode ray in its primary form of operation. LCD has begun being replaced by new display technologies such as OLEDs.

LED bulb full form

What is the full form of an LED bulb?


Answer:

  • Light Emitting Diode Bulb

What does LED mean?


LED light bulbs are a more environmentally and friendly alternative to incandescent bulbs. An LED light bulb is a solid-state lighting device that fits in standard screw-in connection but uses LEDs to produce light. LED bulbs are used as a semiconductor device that emits visible light when an electric current passes through it.


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  1. CFL bulb full form 

Difference Between Raster Scan and Random Scan

The comparison between a raster scan and a random scan is that lies in the drawing of a picture where the raster points was the electron beam at the entire screen but it is incorporating just one line at a time in the downward direction. While on random scan, the electron beam is guided on just these regions of the screen where the picture actually lies.


Definition of Random scan


The random scan work in a completely different manner and different way to the raster scan where the electron beam is pointed to merely those areas of the screen where the picture is to be drawn. 


Definition of Raster scan


The raster scan is a scanning technique in the graphic monitor where the electron beam is moved along the screen covering one line at a time from top to bottom. The beam intensity is set at high and low both levels as the beam sweeps around the screen to generate a pattern of illuminated spots.

Difference between raster scan and random scan


  • Raster scan is a point plotting device, while in the random scan is a line drawing device.
  • Raster is a sweep in a particular order, while in a random scan draw the image in any order.
  • Raster scan is used for photos.  So that is a reason is why photoshop is a raster editing program. While the random scan is used for text, logos, and letterheads.
  • Raster scan is well suited for the realistic display of scenes containing shading and color patterns, while in the random scan is used for line drawing applications and cannot display realistic shaded scenes.
  • Raster scan is less expansive than a random scan, while a random scan is costlier than a raster scan system.
  • raster scan is poor or less resolution because picture definition is stored as an intensity value. While in random scan high resolution because it stores picture definition as a set of line commands.
  •  Raster scan is suitable for application requiring polygon drawings, while in the random scan is suitable for creating realistic scenes. 
  • The zig-zag line is produced because the plotted value is discrete, while in a random scan smooth line is produced because directly the line path is followed by an electron beam.
  • Random scan is refresh rate is 60 to 80 frames per second, while in random scan refresh rate is 30 to 60 frames per second.
  • Raster scan is stored picture definition in refresh buffer also called a frame buffer. But in the random scan is store picture definition as a set of line commands called a refresh display file.
  • In a raster scan, modification is tough, while in random scan modification if needed is easy.
  • Raster scan in which, for the image, picture rendering, raster scan uses pixels, while in the random scan, a mathematical function is used for image or picture rendering.
  • In a raster scan, shadow mark technology came under this, while in random scan beam penetration technology come under it.

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Full form of DVP

What is the full form DVP?


Answer:

  • Digital Video Projection


What does DVP mean?


A digital projector is also called as the digital projection. It is a specialized computer display that projects an enlarged image on the movie screen. Such devices are commonly used in presentations. DLP and LCD both are the types of DVP technologies used for displaying the computer screen over a large type of  LCD screen.

Difference Between RGB and CMYK

RGB and CMYK both are the colours models. Which provide an abstract numeric system for defining the colours with the help of three or more four major numbers to show the primary colours. The main key difference between RGB and CMYK colour model is that the number of channels contained by RGB is three. While in CMYK model has four component colours. So here this article gives the main key difference between RGB vs CMYK to better understand this topic.

Definition of RGB


RGB is a colour model, It is the most prevalently used additive type of colour model in computer graphics. It specifies the red, green and blue components of the colours which are capable of producing a wide variety of colours by adding the different intensities of red, green and blue colours. By adding the full intensities of red, green and blue, we get the white colour and black colour if none of them is present.


Definition of CMYK


The CMYK is a colour model, it's called cyan, magenta, yellow and k for black. This model is just inverse of the RGB model. This model is subtractive in nature. The subtractive model is expressed by the fact that the more it adds the colours, the more colour will be subtracting from the white. Therefore, if non of the CMYK colour is present the resulting colour is white but the CMYK colour exists at their fullest intensities, then it produces a black colour. By adding the equal intensities of each colour, the shades of grey can be generated. 

The main key difference between RGB and CMYK


  • The RGB colour model, the light is used to changing the produced colour intensity. While the CMYK model uses ink for altering the colour intensity.
  • By adding the RGB colours, the white colour is generated while the addition of CMYK colours produces a black colour.
  • The RGB model is known as the additive model because these colours produce a brighter outcome when added with the light. While in CMYK is a subtractive model where we begin with the white sheet of paper and forgetting the dark result, you need to add more ink to it.
  • The RGB model helps in operating the task at a higher speed and consumes less memory space as compared to the CMYK model.
  • The RGB colour model is mainly implemented in the display monitors for generating various type of colours. While CMYK is utilized in printing materials majority. 

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Full form of SVGA

What is the full form of SVGA?


Answer:

  • Super VGA or Super Video Graphics Array

What does SVGA mean?


SVGA is an extension of VGA. The super VGA provides higher resolution with more colors. These boards can function in two modes: 800 ⤬ 600 or 1024 ⤬ 480. Either of the 16 or 256 colors are supported by both of the modes. However, memory utilization in SVGA is high. 

Full form of VGA

What is the full form of VGA?


Answer:

  • Video Graphic Array


What does VGA mean?


VGA is developed by IBM. It uses analog signals that delivers 640⤬480 resolution with 16 colors at a time ad refresh rate of 16 colors. It displays a maximum of 256 colors at a time from the 262, 144 colors collection. It consists of a 6 bit digital to analog converter to convert analog red, green, and blue signals.

Difference Between VGA and SVGA

VGA and SVGA fall in the category of these standard used for channeling the video data to a suitable visual output. VGA supports smaller resolution videos and images while the SVGA is a standard that provides large-resolution for displaying the content. Here this article give the information about the main key difference between VGA and SVGA to better understand this topic.


VGA vs SVGA


Definition of VGA


VGA stands for video graphics arrays, It is developed by IBM. It uses analog signals that delivers 640⤬480 resolution with 16 colors at a time ad refresh rate of 16 colors. It displays a maximum of 256 colors at a time from the 262, 144 colors collection. It consists of a 6 bit digital to analog converter to convert analog red, green, and blue signals.


Definition of  SVGA


SVGA stands for a super video graphics array, which is an extension of VGA. The super VGA provides higher resolution with more colors. These boards can function in two modes: 800 ⤬ 600 or 1024 ⤬ 480. Either of the 16 or 256 colors are supported by both of the modes. However, memory utilization in SVGA is high. 

The main key difference between VGA and SVGA


  • VGA stands for video graphics arrays, while in SVGA stands for super video graphics arrays.
  • The VGA support 640⤬480 resolution and 144, 262 colors. While SVGA can provide 1024⤬480 of resolution and 144 to 262 colors.
  • SVGA is the extended version of VGA.
  • SVGA consumes more than VGA, which can range up to 1024 k while in VGA it can go up to a maximum of 256 k.
  • VGA developed by IBM, while in SVGA developed by several  hardware and monitor manufacturers.
  • Supplementary memory was not included in VGA, while in SVGA supplement memory was included.

Difference Between DLP and LCD Projector

DLP and LCD both are the type of DVP called (digital video projection) technologies used for displaying the computer screen over a large type of  LCD screen. The main key difference between DLP and LCD projectors is that DLP works as a reflective technology while LCD is a transmissive method. So here this article gives information about the main key difference between DLP and LCD projector to better understand this topic.

DLP projector vs LCD projector 


Definition of  DLP projectors


The DLP stands for digital light processing. It is a reflective projection method that merges a microelectromechanical system called MEMS technology and the projection display with the help of a digital micrometer device microchip. The peculiar microchip is constructed by a MEMS array of semiconductor-based digital light switch that accurately controls a light source.

Definition of  LCD projector 


LCD stands for liquid crystal display. These protectors are constructed using the tiny liquid crystal panels where the transmission of light takes place instead of reflection. It uses three panels for each color. However, a fourth panel can also be used for enhancing the color generation. As we know that the main work of the optical filters is to split the white light from the lamp to three colors and direct them through their respective panel.

Difference between DLP and LCD projector


  • DLP stands for digital light processing, while in LCD stand for liquid crystal display.
  • In while using the DLP projector projects the object over the screen by reflecting the light. while in LCD projector transmits the light to produce the object on the screen.
  • The visibility of pixels in LCD is better than that of DLP because the pixel positioning in LCD is in a manner that creates a large gap between the pixels.
  • DLP projector invented in 1987, while in LCD projector was invited in 1968.
  • DLP projector is a type of projector that uses a digital micromirror device, while in the LCD is a type of projector for displaying video, images or computer data on a screen or other flat surface, the modern equivalent of the slide or overhead projector.
  • LCD produces a wide range of colors appropriate for video playback whereas the DLP generates sufficient colors and which are adjustable.
  • In the DLP projector contrast ratio is higher than LCD, while in LCD protector contrast ratio lower than the DLP projector. 
  • Pixel visibility low in the DLP projector, but the pixel visibility higher in the LCD projector.
  • DLP projector has good picture quality but poorer than an LCD projector. While in LCD projector sharper image, better picture quality than DLP projector
  • The rainbow effect produced in the DLP protector while the LCD projector does not produce a rainbow effect.
  • The misconvergence is the color fringing effect produced by horizontal vertical line, which can be seen in LCD frequently, which can be seen in LCD frequently. While in aginst that, this is not present in a DLP projector.
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Difference Between CRT and LCD

The main key difference between CRT and LCD exist in their image forming technique. CRT displays images on the screen by making use of an electron beam while in LCD utilizes liquid crystals for the formation of an image on the screen. Here we will discuss some other important main key difference between CRT and LCD to better understand this topic.

CRT vs LCD


Definition of CRT


CRT stands for a cathode-ray tube. It is a display device used in the television set and computer monitors. It is a one kind of vacuum tube that contains one or more electron guns, electrostatic deflection plates, and a phosphor target which is located at the back of the glass screen.

Definition of LCD


LCD stands for liquid crystal display. It monitors a computer monitor or display that uses LCD technology to show clear images and is found in many laptop computers and flat-panel monitors. This device is available to display arbitrary images or some fixed images with low information content. Which can be displayed or hidden such as preset word, some digits, and seven-segment display and also a digital clock.

The main key difference between CRT and LCD


  • CRT stands for cathode rays tube, while LCD stands for liquid crystal display.
  • A CRT is somewhat large in size and bulky while in LED support flat screen and is light in weight as compared to CRT.
  • CRT and LCD both are display devices. The power consumed by LCD is approximately around the 1/3rd of that of the CRT. CRT consuming high power compared to LCD.
  • A major component of CRT is phosphor screen, electron gun, vacuum glass tube, deflection plate. While in The main component of LCD was an internal light source, glass plate, nematic liquid crystal.
  • CRT is weighted, bulky, and large in size, while in LCD light, compact and thin in size.
  • CRT supports a better viewing angle from all direction as compared to LCD.
  • LCD provides a much good and greater image quality as compared to a CRT screen.
  • The external supply provided to a CRT is usually an analog signal whereas LCD makes use of a digital signal for the same.
  • As the demand for LCD was increased considerably nowadays, this affected the cost of CRT thus made it less expensive as compared to LCD devices. 
  • CRT has a good response compared to LCD.
  • CRT resolution is quiet lower than LCD.
  • One of the excellent properties of LCD over CRT is its an antiglare property. LCD screen more efficiently reduces the glare generated by light as compared to the CRT.
  • CRT is more dominant in flickering as it possesses a low refresh rate that causes a drop in image brightness that is easily recognized by makes eyes. While flickering is not that much higher in LCD due to its high refresh rate.
  • CRT is like black, while in LCD is like white.
  • The electron gun is used to form an image, while in a liquid crystal is used form images in LCD.
  • CRT is used on television and was used in old computer monitor, while LCD is used in a flat-screen.
  • Image retention is never present in CRT. There is image retention in LCD.
  • CRT  can be affected by the external magnetic field, while extreme temperature levels can severely affect the operation of LCD.
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Difference Between LED and OLED

The main key difference between LED and OLED is that a wider viewing angle is noticed in the case of OLED. The black level is more dominant in OLED as compared to LED.  Here learn lot of difference between them, So here this article gives the main key difference between LED and OLED to better understand this topic.

LED vs OLED 


Definition of LED


LED stands for light-emitting diode. In which it is a recombination of electron-hole pair that generates heat in the form of light energy. It works on the principle of electroluminescence.

Definition of OLED


OLED stands for the organic light-emitting diode. It is composed of organic semiconductor material thus termed as called as OLED. OLED is an advancement of LED,  while in  OLED is composed of organic semiconductor material.

The main key difference between LED and OLED


  • LED stand for light-emitting diode, while in OLED stands for the organic light-emitting diode
  • LED screen allows us to have this display as compared to LCD, OLED permits a thinner screen when we make its comparison with LED.
  • LED display provides a greater screen size of about 100 inches while in  OLED which is about 90 inches after the recent advancement.
  • The viewing angle of LED is 54 degrees, while in the viewing angle of OLED is 84 degrees.
  • OLED consumes less energy for its operation as compared to LED due to its self-illuminating property as it does not need a backlight to initiate the operations.
  • Screen burn-in is an issue related to CRT, plasma, and OLED as this effect it not marked in the LED display. Burn-in arises when the screen that is responsible for image formation degrades with time.
  • LED is more flexible, OLED is less flexible.
  • LED is a heavyweight, while in OLED lighter in Comparison to  LED 
  • The overall cost is less while using LED, but the cost is more while using OLED.
  •  LED display requires a backlight for its illumination, which is basically a light-emitting diode. As against the OLED does not need backlight in order to cause illumination as here carbon is used as an organic material that acts as a natural source of light.
  • Life span is more in LED, while in OLED lifespan is less.
  • Power consumptions more in LED, while in OLED power consumption is less.
  • Response time is slow in while using LED, while in OLED response time is fast.

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Difference Between Flash drive and Pen drive

A flash drive and a pen drive have similar capabilities and are fundamentally alike, in any case, many individuals confound the terms. So here this article give the information about the main key difference between the flash drive and pen drive to better understand this topic.


Difference between the flash drive and pen drive:


  • The flashes drive is a wider term than the pen drive. the flash drive can be pen or USB drive. 
  • Flash drive has multi uses. you can use it externally as well as internally. In the latest laptop, tablet, and notebook instead of a hard disk flash drive is being used. While the pen drive is always used externally moreover it required a USB port to work.
  • Flash drive is a nonvolatile memory with no mechanical elements, while in pen drive is a removable drive consisting of a flash memory that is connected via USB port.
  • Pen drive is manufactured according to fixed P/E cycles, when your pen drives archives these limits it will become automatically useless. The integrated flash drive has no such problem because in some computer systems it is working in place of the hard disk.
  • Pendrive is only used for data storage and transfer while flash drive can be used for various purposes - both internally and externally of a device.
  • Computer with low specification takes a long time to handle the pen drive sam is the situation of the external drive. While the internal flash drive has no such problem. It works as a normal hard disk works.
  • Pendrive is always directly connected to a USB port. A flash drive may be plugged in a direct or corded USB connection or even more, can be stored inside of a cell phone or mobile media device.

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Difference between DC Voltmeter and AC Voltmeter

The main key difference between DC voltmeter and AC voltmeter is that the DC voltmeter measures the peak value while in AC voltmeter measure the RMS value of the AC voltage. So let us discuss with the main key difference between DC voltmeter and AC voltmeter to better understand this topic.

The main key difference between DC voltmeter and AC voltmeter:

  • The measuring quality is the crucial factor that differentiates DC voltmeter and AC voltmeter. The DC voltmeter measures the DC voltage but the AC voltmeter measures the AC voltage.
  • The DC voltmeter measures the peak value of DC voltage but the AC voltmeter measures the RMS value of the AC voltage.
  • DC voltmeter does do not use a rectifier before a multistage amplifier whereas the  AC voltmeter measures the RMS value of the AC voltage. 

Raspberry Pi Starter Kit

This is truly all in one kit as you everything like raspberry Pi 4B, display, some sensors, keyboard, mouse, and many more.

ELECROW Crowpi Rasberry Pi 4B 3B+kit learning computer science

  • Raspberry Pi 4 Model B
  • 7 inch HD touch screen
  • Power adapter
  • LCD
  • Seven segment display
  • 32GB MicroSD card and card reader
  • RFID Card
  • Heat sinks
  • Touch pen
  • Camera
  • Wireless keyboard and mouse
  • Motor

Freenode ultimate starter kit for Raspberry Pi 4B:

  • LEDs
  • Seven segment display
  • Servo motor
  • Stepper motor
  • 16*2 ALPHANUMERIC  LCD
  • Breadboard
  • Ultrasonic sensor
  • Motor driver
  • Joystick
  • Keypad
  • PIR motion sensor

Canakit Raspberry Pi 4 4GB starter kit

  • Canakit low noise bearing system fan
  • Micro HDMI to HDMI cable - 6 foot
  • Set off heat sinks
  • USB MicroSD card reader
  • Canakit USB-C piswitch
  • 32GB Samsung EVO+MICRO SD card pre-loaded with NOOBS 
  • Raspberry pi 4 4 GB model with 1.5 GHz 64 BIT QUAD CORE armv8 CPU
  • Canakit quick start guide and can kit GPIO reference card
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