Display and Distribution
Display and Distribution Considerations for Digital Media
Displaying and digital media products consists of the demonstration of the specific product utilising a large variety of devices. Digital media products are chosen by the data type, the viewers and the specifications of the particular product. There are many display devices today such as screens, printers, speakers, mobile phone screens and other new technology which is constantly changing today.
Screen-A screen is computer systems user interface and open programs allowing the user to interact with the computer via keyboard or mouse or touchscreen. The screen is usually a flat surface which supply’s constant feedback of images, text, a website or video for the user to understand. The screen is made up of many pixels which are minute dots .The tiny area of space between the pixels is known as the dot pitch where screens that display more pixels and have a petite dot pitch will provide a clearer image. Today our screens are usually on mobile phones, TVs, laptops and computers where the most familiar screen is a monitor. Outdated computer monitors are constructed using cathode ray tubes (CRTs), which made them rather heavy and caused them to take up a lot of desk space. The technology behind the screen is that the image is produced by firing a beam of electrons onto the inside of the screen containing a coat of phosphor which glows when hit by the electrons. Red, green and blue phosphor are used in colour monitors. Today the contemporary monitors are of liquid crystal display (LCD) technology and are commonly referred to as flat screen displays. These thin monitors take up much less space than the older CRT displays which results in more desk space for papers, pens, and other objects.
Data projectors is a device that projects computer output onto a white or silver fabric screen that is wall, ceiling or tripod mounted. It is widely used in classrooms and auditoriums for instruction and slide presentations. A data projector has a VGA or video inputs for resolutions such as 1024x768, 1280x1024 and higher. Today projectors can display a large image of 3 to 4 metres in size and use LCD technology to successfully do this.
Printer- A printer is a peripheral output device that prints paper documents including text, images or a composition of both. The two printers which are used are inkjet and laser printers. Inkjet printers are commonly used by consumers, while laser printers are a typical choice for businesses. A typical inkjet printer can produce copies with a resolution of at least 300 dots per inch (dpi ). Some inkjet printers can make full color hard copies at 600 dpi or more. The inkjet printing mechanism has a print head which has several tiny nozzles, also called jets. As the paper moves past the print head, the nozzles spray ink onto it, forming the characters and images. When a document is sent to a laser printer, a laser beam "draws" the document on a selenium-coated drum using electrical charges. After the drum is charged, it is rolled in toner, a dry powder type of ink. The toner adheres to the charged image on the drum. The toner is transferred onto a piece of paper and fused to the paper with heat and pressure. After the document is printed, the electrical charge is removed from the drum and the excess toner is collected. Most laser printers print only in monochrome. Dot matrix printers, which have become increasingly rare, are still used for basic text printing. The printed page created by the printer is often called a hardcopy (the physical paper) whilst the electronic copy is called soft copy. Many printers now print both mono (black and white) and colour copies. Even today the printers that sit in many homes are capable of producing high quality photos as the printers have a large amount of dots per inch setting.
Printers are becoming more and more popular in the home as they are advanced offering many features such as scanning and photocopying/and printers are becoming reasonable for families. Furthermore there are 3D printers which print objects with materials and when completed can be used.
When you have a computer or laptop a printer becomes a necessity for printing documents, assignments and just sometimes you want a hard copy of something rather than a soft copy.
Speaker-Speakers are output devices which are typically used in computer systems. There are speakers which are designed to work with the computers or already in built and some speakers that are designed to work with any sound system. The main purpose of speakers is to create audio output which can be heard. Speakers are transducers where electromagnetic waves are used which uses electric currents and magnetic fields. The speakers need an audio input from a computer or an audio receiver. There is a cone with a coil of wire fixed. The magnetic field now causes the coil to become magnetised and therefore the cone vibrates to produce sound waves. Sound requires air to be in existence as there has to be a medium with particles for the sound to actually be heard. The cones oscillation does this. The sound produced by speakers is defined by frequency and amplitude. The frequency determines how high or low the pitch of the sound is. Amplitude, or loudness, is determined by the change in air pressure created by the speakers' sound waves.
Speakers usually come in pairs, which allows them to produce stereo sound. This means the left and right speakers transmit audio on two completely separate channels. Today we use speakers in a lot of our devices and they are becoming easier to use to create a better experience.
Displaying and digital media products consists of the demonstration of the specific product utilising a large variety of devices. Digital media products are chosen by the data type, the viewers and the specifications of the particular product. There are many display devices today such as screens, printers, speakers, mobile phone screens and other new technology which is constantly changing today.
Screen-A screen is computer systems user interface and open programs allowing the user to interact with the computer via keyboard or mouse or touchscreen. The screen is usually a flat surface which supply’s constant feedback of images, text, a website or video for the user to understand. The screen is made up of many pixels which are minute dots .The tiny area of space between the pixels is known as the dot pitch where screens that display more pixels and have a petite dot pitch will provide a clearer image. Today our screens are usually on mobile phones, TVs, laptops and computers where the most familiar screen is a monitor. Outdated computer monitors are constructed using cathode ray tubes (CRTs), which made them rather heavy and caused them to take up a lot of desk space. The technology behind the screen is that the image is produced by firing a beam of electrons onto the inside of the screen containing a coat of phosphor which glows when hit by the electrons. Red, green and blue phosphor are used in colour monitors. Today the contemporary monitors are of liquid crystal display (LCD) technology and are commonly referred to as flat screen displays. These thin monitors take up much less space than the older CRT displays which results in more desk space for papers, pens, and other objects.
Data projectors is a device that projects computer output onto a white or silver fabric screen that is wall, ceiling or tripod mounted. It is widely used in classrooms and auditoriums for instruction and slide presentations. A data projector has a VGA or video inputs for resolutions such as 1024x768, 1280x1024 and higher. Today projectors can display a large image of 3 to 4 metres in size and use LCD technology to successfully do this.
Printer- A printer is a peripheral output device that prints paper documents including text, images or a composition of both. The two printers which are used are inkjet and laser printers. Inkjet printers are commonly used by consumers, while laser printers are a typical choice for businesses. A typical inkjet printer can produce copies with a resolution of at least 300 dots per inch (dpi ). Some inkjet printers can make full color hard copies at 600 dpi or more. The inkjet printing mechanism has a print head which has several tiny nozzles, also called jets. As the paper moves past the print head, the nozzles spray ink onto it, forming the characters and images. When a document is sent to a laser printer, a laser beam "draws" the document on a selenium-coated drum using electrical charges. After the drum is charged, it is rolled in toner, a dry powder type of ink. The toner adheres to the charged image on the drum. The toner is transferred onto a piece of paper and fused to the paper with heat and pressure. After the document is printed, the electrical charge is removed from the drum and the excess toner is collected. Most laser printers print only in monochrome. Dot matrix printers, which have become increasingly rare, are still used for basic text printing. The printed page created by the printer is often called a hardcopy (the physical paper) whilst the electronic copy is called soft copy. Many printers now print both mono (black and white) and colour copies. Even today the printers that sit in many homes are capable of producing high quality photos as the printers have a large amount of dots per inch setting.
Printers are becoming more and more popular in the home as they are advanced offering many features such as scanning and photocopying/and printers are becoming reasonable for families. Furthermore there are 3D printers which print objects with materials and when completed can be used.
When you have a computer or laptop a printer becomes a necessity for printing documents, assignments and just sometimes you want a hard copy of something rather than a soft copy.
Speaker-Speakers are output devices which are typically used in computer systems. There are speakers which are designed to work with the computers or already in built and some speakers that are designed to work with any sound system. The main purpose of speakers is to create audio output which can be heard. Speakers are transducers where electromagnetic waves are used which uses electric currents and magnetic fields. The speakers need an audio input from a computer or an audio receiver. There is a cone with a coil of wire fixed. The magnetic field now causes the coil to become magnetised and therefore the cone vibrates to produce sound waves. Sound requires air to be in existence as there has to be a medium with particles for the sound to actually be heard. The cones oscillation does this. The sound produced by speakers is defined by frequency and amplitude. The frequency determines how high or low the pitch of the sound is. Amplitude, or loudness, is determined by the change in air pressure created by the speakers' sound waves.
Speakers usually come in pairs, which allows them to produce stereo sound. This means the left and right speakers transmit audio on two completely separate channels. Today we use speakers in a lot of our devices and they are becoming easier to use to create a better experience.
Today with so much digital media around we need to find efficient ways to store and distribute it. There are some factors which affect the type of media used for distribute digital media including the data type, the audience and the hardware requirements of the specific product. Three main ways of how digital media is distributed are by optical discs, the internet and streaming.
Optical Disk-Optical disk is any storage media that holds content in digital format and is read and written using laser technology. The most used optical media are Blu-ray, CDs(compact disc), and DVDs(digital versatile disk).The dimensions of a standard CD or DVD are 120mmin diameter by 1.2mm thick with a 15mm diameter central hole that is used for the center spindle of the drive. The disk is a constructed of polycarbonate with a coat of a reflective layer of metal. CDs can store up to 800 megabytes of data, DVDs can store up to 17gigabytes of data and Blu-ray discs can store up to 50 gigabytes of data. There is large variety of CDs and DVDs including,CD-ROM-Compact Disc Read only memory, CD-R-Compact Disc Recordable,
CD-RW-Compact Disc Rewritable, DVD-ROM-Digital Versatile Disk Read only memory, DVD-RAM-Digital Versatile Disk Random Access memory, DVD-R-Digital Versatile Disk Recordable,DVD-RW-Digital Versatile Disk Rewritable.
Computers can read and write to CDs and DVDs using a CD Writer or DVD Writer drive, and a Blu-ray is read with a Blu-ray drive. Drives such as a CD-R and DVD-R drive that can read and write information to discs are known as magneto-optic (MO). DVDROM drives can play/read DVDs and CDs.
Internet-The Internet is a global network connecting millions of computers. It is used to display and distribute digital media and other types of data. More than 190 countries are linked and it’s estimated that there are over 3 billion users worldwide into exchanges of data, news and opinions. When someone visits a website with digital data behind the scenes there are servers which are powering the website to be displayed. Today anyone, anywhere can produce a website very easily therefore there is an ever-changing amount of topics available on the internet. These sites use many ways to display data usually through text , graphics ,animations ,audio and video .The internet distributes data through downloading of audio or photos straight on to your drive for you to use .The internet is a wonderful source and is beneficial in many aspects but we still have to be aware whilst using the internet.
Streaming-Streaming or media streaming is a technique for transferring data so that it can be processed as a steady and continuous stream and which essentially displays audio and video across a specific network usually being the internet or through YouTube. Streaming technologies are becoming increasingly important with the growth of the Internet because most users do not have fast enough access to download large multimedia files quickly. With streaming, the client browser or plug-in can start displaying the data before the entire file has been transmitted. Streaming works by the client or user who is watching the stream should be able to collect the data and then watch it constantly while the next part is loading and save in a buffer. The data has to come quick enough otherwise the stream will not be smooth.
Streaming is used a lot on YouTube and generally on the web as well. The advantage of streaming is that you can watch video then and there and have it being saved on your computer which in turn saves space.