What is ouput ?

What is Output ?

Output is data that has been processed into a useful form. That is, computers process data (Input) into information (Output). Users view or watch output on a screen, print it, or hear it through speakers, headphones, or ear buds. While working with a computer, a user encounters four basic types of output: text, graphics, audio, and video. Very often, a single form of output, such as Web page, includes more than one of these types of output.

An output device is any hardware component that conveys information to one or more people. Commonly used output devices include display devices, printers, speakers, headphones, and earbuds, data projectors, and interactive whiteboards.

Four types of output are text, graphics, audio, and video

Display Devices

A display device is an output device that visually conveys text, graphics, and video information. Desktop computers typically use a monitor as their display device. A monitor is a display device that is packaged as a separate peripheral. Some monitors have a tilt-and-swivel base that allows users to adjust the angle of the screen to minimize neck strain and reduce glare from overhead lighting. With some, you can rotate the screen. Adjustable monitor stands allow you to adjust the height of the monitor. Some have integrated speakers and or a built-in Web cam. Monitor controls permit users to adjust the brightness, contrast, positioning, height, and width of images. Most mobile computers and devices integrate the display and other components into the same physical case.



LCD Monitors and LCD Screens

An LCD monitor is a desktop monitor that uses a liquid crystal display to produce images. These monitors produce sharp, flicker-free images. LCD monitors have a small footprint, that is, they do not take up much desk space. Most are wide screen, which are wider than they are tall. You measure a monitor the same way you measure a television, that is diagnolly from one corner to another.

Plasma Monitors

A plasma monitor is a display device that use gas plasma technology, which sandwiches a layer of gas between two glass plates. Like LCD monitors, plasma monitors can hang directly on a wall.

Other Output Devices

In addition to monitors and printers, other output devices are available for specific uses and applications. These include speakers, headphones, and earbuds, data projectors, and interactive whiteborads.

Speakers, Headphones, and Earbuds

An audio output device is a component of a computer that produces music, speech or other sounds, such as beeps. Three commonly used audio output devices are speakers, headphones and earbuds.
Most personal computer and mobile devices have a small internal speakers that usually emits only low quality sound. Thus many users attach surround sound speakers or speaker systems to their computers to generate higher-quality sounds.

Most personal computer users attach high-quality surround sound speaker system to their computers

Data Projectors

A data projectors is a device that takes the next and images displaying on a computer screen and projects them on a larger screen so that an audience can see the image clearly. Some data projectors are large devices that attach to a ceiling or wall in an auditorium. Others, designed for the mobile users, are small portable devices that can be transported easily.

Data projectors can produce sharp, bright images

What is Input?

What are Optical Scanners? 

An optical scanner is any scanning technology that converts a physical image, text, or object into a digitized form that can be stored as a 2D image file on a computer.  3D scanners also exist, but they are not widespread and are sometimes based on  different technologies.   Price? Optical scanners have been around for decades and their price has dropped accordingly.  You can buy low-level used optical scanners on eBay for as little as 20 US dollars (USD)  and a new scanner on newegg.com for around 50 USD. Better optical scanners sell  for hundreds of dollars. How about the basic technology?  The basic technology underlying optical scanners is that of the charge-coupled device (CCD). A CCD consists of a capacitor array that is sensitive to light. 1D Wireless Blue-tooth & Zig-bee long-range laser scanners High performance Wireless Optical laser scanner With RIOTEC laser engine, No Moving parts inside LS6000B: 90M max. LS6000Z: Up to 250 units scanners in single cradle Ergonomic design & light weight for easy use 3 LED indicators DEMO different functions (power, RF communication, good read, charging) Up to 30,000 scans per full charge Cover with rubber for well protection One shot programming completes setting Cradle can be hands-free stand and receiver Bar Code Reader This multi-purpose handheld bar code reader provides the power of a bar code scanner,  a digital camera and document scanner in single cost-effective device.  EPSON V300 Photo Scanner Hardware input device that allows a user to take an image or text and convert it  into a digital file, allowing the computer to read or display the scanned object.  A scanner is commonly connected to a computer USB, Firewire, Parallel or SCSI port.   Card Reader Memory Card Readers: Just like a CD-R or floppy disc, you need a device to read  what is on the flash memory; this is where a card reader comes in. You can connect  the card reader to your notebook or PC through a USB port. Notebooks can also use  a PCMCIA reader.   Image Capturing Devices Digital Camera A digital camera (or digicam) is a camera that takes video or still photographs, or both,  digitally by recording images via an electronic image sensor. Most 21st century cameras are  digital. Digital cameras can do things film cameras cannot: displaying images on a screen  immediately after they are recorded, storing thousands of images on a single small memory  device, and deleting images to free storage space.  Do you know?? The majority, including most compact cameras, can record moving video with sound  as well as still photographs. Some can crop and stitch pictures and perform other  elementary image editing. Some have a GPS receiver built in, and can produce  Geo tagged photographs. Types of Digital Camera : Sony Cyber Shot DSCT200 Olympus MJU 780 High Resolution Digital Camera Evolution of camera Follow this link :   http://www.technewsdaily.com/digital-camera-history-the-evolution-of-the-camera-0478/ http://www.darkroastedblend.com/2010/05/evolution-of-camera.html  Digital Video Cameras Digital Video (DV) is an ideal format for anyone wanting to use a camcorder (DV camera)  to work with video on the PC or the Web. The most exciting aspect of DV editing is the  purity of the content. No matter how much you work with your video,  if you keep the data in a digital format, the video quality will be exactly the same. For the shooting, only high quality digital 3-CCD cameras are used that provide an  excellent image quality – upon request, we will also guarantee HDV.  These professional 3-CCD Chip cameras have the highest relative aperture  of all cameras currently on the market.  Instant Messaging and Web Cams The latest web cam from Genius, Look 110, works with Windows Vista, XP, 2000, Me, 98SE.  Whether you are creating video emails or hosting one-to-one video chats, this easy to use  web cam adds a personal touch to your online communication. Logitech Quickcam Zoom Web Cam Hewlett Packard RD345AA Web Cam How to use any Digital Camera as a web cam? Choosing a Webcam For Instant Messaging Quality. Quality of a webcam is determined by the type of sensor and many webcam's now use CCD technology as found in many Digital Cameras. Low end and Early web cams use CMOS sensors which offer lower quality so it is important to choose a webcam that offers a good enough resolution to deliver clear crisp images and smooth video.   Simplicity. Almost all of the webcams available today require a USB connection to the computer so it is important to check your PC or Laptop has this connector available. You will also want to find a Webcam from a reputable manufacturer some of which include Logitech, Microsoft, Labtec, Saitek, Hauppauge and Axis as they will offer simple and well tested software installations which should work with little or no configuration of your Instant Messaging software.  PLEASE CHECK! Also check that your webcam has a usable stand or connector to enable you to attach the device at a suitable position - monitor mounted webcams are often the best choice as they offer the best position and distance to capture a persons face for instant messaging. Price. The price of webcams do vary considerably and you can pay anywhere from ten to hundreds of dollars for a webcam. For instant messaging a mid range webcam should not only provide the best quality but also offer a good level of support and compatibility. Some webcams offer face tracking and zooming technology and if you want these features you will have to pay slightly more but this does make day to day use of the webcam a little easier as it will not require as much repositioning.

Audio-Input Devices and Monitor

AUDIO-INPUT DEVICES

Convert sounds into a form that can be processed by the system unit. By far the most widely used audio-input devices are the microphone. Audio input can take many forms, including the human voice and music.




VOICE RECOGNITION SYSTEM



Use a microphone, a sound card, and special software. These systems allow users to operate computers and to create documents using voice commands. Portable voice recognition systems are widely used by doctors, lawyers, and others to record dictation. These devices are able to record several hours before connecting to a computer system to edit, store, and print the dictated information. Some systems are even able to translate dictation from one language to another, such as from English to Japanese.

WHAT IS OUTPUT

Is a processed data or information. Output typically takes the form of text, graphic, photos, audio, and/ or video. For example, when you create a presentation using a presentation graphics program, you typically input text and graphics. You also could include photographs and even add voice narration. The output would be the completed presentation.

Output devices are any hardware used to provide or to create output. They translate information that has been processed by the system unit into a form that humans can understand. There are wide ranges of output devices. The most widely used are monitors, printers, and audio-output devices


MONITOR




Known as display screens, monitors present visual image of text and graphics. The output is often referred to as soft copy. Monitors vary in size, shape, and cost.


Features

Clarity refers to the quality and sharpness of the displayed images. It is function of several monitor features, including resolution, dot pitch, refresh rate, size, and aspect.

Resolution

One of the most important features. Image are formed on a monitor by a series of dots or pixels (picture elements). Resolution is expressed as a matrix of these dots or pixels.

For examples; many monitors today have a resolution of 1,600 pixels columns by 1,200 pixel rows for a total of 1,920,000 pixels. The higher a monitor’s resolution (the more pixels), the clearer the image produced.

Dot (pixels) pitch

The distance between each pixel. Most newer monitors have a dot pitch of 3.1 mm (31/100th of a millimetre) or less. The lower the dot pitch (the shorter the distance between pixels), the clearer the image produced.

Refresh rate

Indicates how often a displayed image is updated or refresh. Most monitors operate at a rate of 75 hertz, which means that the monitor is refreshed 75 times each second. Image displayed on monitors with refresh rates lower than 75 hertz appear to flicker and can cause eye strain. The faster the refresh rate ( the more frequently image are redrawn), the better the quality of image displayed.

Size or active displayed area

Measured by the diagonal length of a monitor’s viewing area. Common sizes are 15, 17, 19, 21, and 24 inches.

Aspect ratio

Determined by the width of a monitor divided by its height. Common aspect ratio for monitors are 4: 3 (standard, similar to traditional television pictures) and 16: 10 (wide screen).


FLAT-PANEL MONITORS

Are the most widely used type of monitor today. Compared to the other types, they are thinner, more portable, and require less power to operate.
Almost all today’s flat-panel monitors are LCD (Liquid crystal display).

There are two basic types:

1. Passive-matrix or Dual-scan monitors: create images by scanning the entire screen. This type require very little power, but the clarity of the image is not as sharp

2. Active-matrix or thin film transistor (TFT) monitor: do not scan the down the screen; instead, each pixel is independently active. They can display more color with better clarity. Active-matrix monitors are more expensive and require more power.

CATHODE-RAY TUBES

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Until recently, the most common type of monitor for the office and the home was the cathode-ray tube (CRT). These monitor are typically placed directly on the system unit or on the desktop. CRTs are similar in size and technology to televisions. Compared to other types of monitors, their primary advantages are low cost and excellent resolution. Their primary disadvantages are that they are bulky, are less energy efficient, and occupy a considerable amount of space on the desktop.

There are several different categories of CRT monitors, which are apart by the mask used:

1. FST-Invar (Flat Square Tube), whose phosphors are round. these monitors use a grid called ashadow mask. they give the right colours overall, but have the disadvantage of distorting and darkening the image at the corners.



2. Mitsubishi's Diamondtron tubes and Sony's Trinitron, whose masks are made up of vertical slots (called an aperture grille or tension mask), which lets through more electrons and therefore gives a brighter image.






OTHER MONITOR



E-BOOK READERS are handheld, book-sized devices that display text and graphics. Using content downloaded from the web or from special cartridges, these devices are used to read newspaper, magazines, and entire books.

eBook readers take it one step further. One device holds about a library and gives you as many of your favorite book titles at your fingertips as you could ever really want. Plus, they make it easy to take notes, save clippings of quotations and highlight passages we want to be able to find again. eBook readers are about readability. They are designed to make your reading experience more enjoyable and less of a hassle. Nobody wants to take a stack of books with them on a business trip or long roadtrip. They’re convenient, portable and good for the environment. In fact, the only real downside we can see to an electronic book over a real paper book is that you’ll have a few more problems if you accidentally spill your coffee on it or get splashed at the pool.








DATA PROJECTORS are specialized devices similar to slide projectors. These devices, however, connect to microcomputers and project computer output just as it would appear on a monitor. Data projectors are commonly used for presentation almost anywhere from the classroom to the boardroom.





HIGH-DEFINITION TELELVISION (HDTV) delivers a much clearer and more detailed wide-screen picture than regular television. Because the output is digital, users can readily freeze video sequences to create high-quality still image. The video and still image can then be digitized, edited, and stored on disk for later use. This technology is very useful to graphics artists, designers, and publishers.

What is Input?

INPUT: Whatever goes into the computer.Input can take a variety of forms, from commands you enter from the keyboard to data from another computer or device. A device that feeds data into a computer, such as a keyboard or mouse, is called an input devices.

CRAZIEST INPUT DEVICES

• Possibly the most fashionable and attractive gadget of the last time is this fabulous Combimouse. Being a combo of mouse and keyboard, similarly this brand new device features a standard QWERTY keyboard as well integrated standard mouse. It would not be a lie to say that this crazy gizmo is one of the coolest and strangest gizmo.
• Its right unit is like a regular mouse having a has a similar grip while the left one appears to be stationary giving your left hand a new operation of your QWERTY keyboard. By default mode the right unit operates in keyboard mode with the user gripping the right unit to automatically change in to mouse buttons mode.
• This mode makes it possible for movement of the right unit to enable cursor movement on its display with the keys I, O, J, K, L to become mouse click buttons. This prototype seems to be very simple preventing the use from moving his hand from keyboard to mouse and back a great deal of times a day.

KEYBOARD ENTRY

•  On most computers, a keyboard is the primary text input device. (The mouse is also a primary input device but lacks the ability to easily transmit textual information.) The keyboard also contains certain standard function keys, such as the Escape key, tab and cursor movement keys, shift and control keys, and sometimes other manufacturer-customized keys.

Wireless Keyboard

Ergonomic Keyboard

Bluetooth laser virtual keyboard

something that will replace your current pc

KEYBOARD ENTRY

• A piece of information fed manually into a computing system by means of a set of keys, such as a typewriter. 

Escape key

Function Keys

Numeric Keypad

Windows Key

Space Bar

Navigation Keys

POINTING DEVICES

• MICE: A mouse controls a pointer that is displayed on the monitor

Cartoon Optical Mouse

Mechanical Mouse

Wireless Optical Mouse

• Three devices similar to a mouse are trackballs, touch pads and pointing sticks.
• You can use trackball also known as the roller ball
• You can use touch pads to control the pointer by rotating a ball with your thumb.
• You can use a pointing stick located in the middle of the keyboard.

TOUCH SCREEN

A touch screen is a particular kind of monitor with a clear plastic outer layer

The joystick is a popular input devices for computer games.You control game actions by varying the pressure, speed and direction of the joystick

A stylus is a pen like devices commonly used with tablet PCs and PDAs.

Pen-like input devices which are larger than a stylus, and offer increased functionality such as programmable buttons, pressure sensitivity and electronic erasers, are often known as digital pens

The iClooly iPad, iPhone, and iPod touch multi touch pen stylus. This stylus.Have Fun!!

Future Computer 2020

In 2020, we can wear Sony computers on our WRIST

• This is the secondary devices like the Nextep Computer that are bound to be happen.It is developed to be worn as a bracelet, this computer concept is constructed out of flexible OLED touchscreen.

• Earmarked for the year 2020, features like a holographic projector (for screen), pull-out extra keyboard panels and social networking compatibility, make the concept plausible. Ten years from now is not too far away, so how many of you think we’d be buying such gadgets?

This future computer is predict to be released to the market in 2020

This concepts looks so cool...

By Hiromi Kiriki; Yanko Design