InforWiki 2014 - User contributions [en]

Image scanner

2014-12-09T21:17:53Z

RauL:

In computing, an '''image scanner''' is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.
[[File:Image scanner.jpg|450px]]

== Types of image scanners: ==
*''Flatbed scanners:'' Are the best-known and largest selling scanner type. They look like miniature printers with a flip-up cover protecting the glass platen.
[[File:Flatbed scanner.jpg|350px]]
*''Sheetfeed scanners:'' Use the same basic technology as flatbeds, but maximize throughput, usually at the expense of quality. Generally designed for high-volume business environments, they typically scan in black and white or gray scale at relatively low resolutions.
[[File:Sheetfeed scanners.jpg|350px]]
*''Drum Scanners:'' Produce the highest resolution, highest quality scans of any scanner type, but at a big price. Besides their expense, drum scanners are slow, not suitable for brittle documents and require a high level of operator skill. Thus they are typically found in service bureaus that cater to the color pre-press market.
[[File:Drum Scanners.jpg|350px]]
*''Portable scanners:'' Are small enough to bring on the road. Some are as wide as a page and roll easily down the page. They’re not going to give high-resolution scans and so are not good for scanning photographs or other applications where you need a high-quality result.
[[File:Portable scanners.jpg|350px]]

== Features: ==
*''Resolution:'' Is the measurement of the resolving power of the scanner’s optics and is expressed as dots per inch, but it is more accurately described as pixels per inch.
*''OCR (optical character recognition):'' Is the mechanical or electronic conversion of images of typewritten or printed text into machine-encoded text. It is widely used as a form of data entry from printed paper data records.

File:Portable scanners.jpg

2014-12-09T21:10:18Z

RauL:

File:Drum Scanners.jpg

2014-12-09T21:09:18Z

RauL:

File:Sheetfeed scanners.jpg

2014-12-09T21:08:01Z

RauL:

File:Flatbed scanner.jpg

2014-12-09T21:06:52Z

RauL:

File:Image scanner.jpg

2014-12-09T21:04:51Z

RauL: RauL uploaded a new version of "File:Image scanner.jpg"

File:Image scanner.jpg

2014-12-09T12:13:58Z

RauL:

File:Trackball.jpg

2014-12-09T11:55:20Z

RauL: RauL uploaded a new version of "File:Trackball.jpg"

Atari's trackball

Image scanner

2014-12-08T11:59:46Z

RauL: Created page with "In computing, an '''image scanner''' is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. == Types of image..."

In computing, an '''image scanner''' is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.

== Types of image scanners: ==
*''Flatbed scanners:'' Are the best-known and largest selling scanner type. They look like miniature printers with a flip-up cover protecting the glass platen.
*''Sheetfeed scanners:'' Use the same basic technology as flatbeds, but maximize throughput, usually at the expense of quality. Generally designed for high-volume business environments, they typically scan in black and white or gray scale at relatively low resolutions.
*''Drum Scanners:'' Produce the highest resolution, highest quality scans of any scanner type, but at a big price. Besides their expense, drum scanners are slow, not suitable for brittle documents and require a high level of operator skill. Thus they are typically found in service bureaus that cater to the color pre-press market.
*''Portable scanners:'' Are small enough to bring on the road. Some are as wide as a page and roll easily down the page. They’re not going to give high-resolution scans and so are not good for scanning photographs or other applications where you need a high-quality result.

Mouse

2014-11-05T11:04:39Z

RauL:

*In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

*Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

*The most famous types are:
**Mechanical mice
**Optical and laser mice
**Gaming mice
**[[Trackball]]

[[File:200px-Wheel mouse.JPG|350px]]

Mouse

2014-11-05T11:00:16Z

RauL:

*In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

*Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

*The most famous types are:
-Mechanical mice
-Optical and laser mice
-Gaming mice
-[[Trackball]]

[[File:200px-Wheel mouse.JPG|350px]]

Memory Card

2014-11-04T12:36:48Z

RauL:

A '''memory card''' or '''flash card''' is an electronic flash memory data storage device used for storing digital information: text, pictures, audio, and video.
There are different kinds and types of memory cards:

=Common Types of Memory Cards=
PCMCIA (Personal Computer Memory Card International Association)
The PCMCIA standard has been expanded several times and are suitable for many types of devices. There are three types of PCMCIA cards. All three have the same rectangular size (85.6 by 54 millimeters), but different widths:

==Type I==
cards can be up to 3.3 mm thick, and are used primarily for adding additional ROM or RAM to a computer.
==Type II==
cards can be up to 5.5 mm thick. These cards are often used for modem and fax modem cards.
==Type III==
cards can be up to 10.5 mm thick, which is sufficiently large for portable disk drives.

You can read more information about it here: [http://www.webopedia.com/DidYouKnow/Computer_Science/Memory_card_types.asp]
[http://en.wikipedia.org/wiki/Memory_card]

[[File:Memory card.jpeg|350px]]

Pen drive

2014-11-04T12:27:16Z

RauL:

A '''Pen drive''' also known as '''USB flash drive''' is a small storage device shaped like a pen with built-in data storage that connects to a computer by a USB (Universal Serial Bus) port.
Storage capacity of the Pen Drive can vary from few megabytes to over 100 GB.

Pen drive consist of an electronic circuit board and a USB connector connects the drive to the computer.It is a memory chip which holds the data. Data output is controlled by Crystal oscillator which produces 12 MHz clock signal in the device.
Most Pen Drives are covered with plastic, metal or rubber casing for insulation.

You can obtain more information here:
[http://www.wisegeek.com/what-is-a-pen-drive.htm]
[http://en.wikipedia.org/wiki/USB_flash_drive]

[[File:Pen drive.jpeg|325px]]

Mouse

2014-11-04T12:22:35Z

RauL:

*In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

*Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

*The most famous types are:
-Mechanical mice
-Optical and laser mice
-Gaming mice
-Trackball

You can see '''trackball''' here: [http://wiki.inforactiva.net/index.php?title=Trackball]

[[File:200px-Wheel mouse.JPG|350px]]

Mouse

2014-11-04T12:13:38Z

RauL:

*In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

*Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

*The most famous types are:
- Mechanical mice
-Optical and laser mice
-Gaming mice

[[File:200px-Wheel mouse.JPG|350px]]

Mouse

2014-11-04T12:12:23Z

RauL:

.In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

[[File:200px-Wheel mouse.JPG|350px]]

.Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

.The most famous types are:
- Mechanical mice
-Optical and laser mice
-Gaming mice

Trackball

2014-10-28T12:34:15Z

RauL:

A [[trackball]] is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes, like an upside, down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a pointer.

Compared with a mouse, a trackball has no limits on effective travel; at times, a mouse can reach an edge of its working area while the operator still wishes to move the screen pointer farther. With a trackball, the operator just continues rolling, whereas a mouse would have to be lifted and re-positioned. Some trackballs, such as Logitech's optical-pickoff types, have notably low friction.

Trackballs have appeared in computer and videogames, particularly early arcade games like in videogames of Atari company.

[[File:Trackball.jpg|500px]]

Trackball

2014-10-28T12:27:56Z

RauL:

File:Trackball.jpg

2014-10-28T12:27:14Z

RauL: Atari's trackball

Atari's trackball

Trackball

2014-10-28T12:18:17Z

RauL:

Trackball

2014-10-27T18:51:08Z

RauL: Created page with "A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes, like an upside, down mouse with..."

Mouse

2014-10-27T18:37:39Z

RauL: Created page with ".In computing, a mouse is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control o..."

.In computing, a [[mouse]] is a pointing device that detects motion . This motion is typically translated into the motion of a pointer on a display, which allows for control of a graphical user interface.

.Physically, a mouse consists of an object held in one's hand, with one or more buttons. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control.

.The most famous types are:
- Mechanical mice
-Optical and laser mice
-Gaming mice

Byte

2014-10-24T11:05:33Z

RauL: Blanked the page

Byte

2014-10-24T11:05:00Z

RauL: Created page with "AÑLSJLÑJAKSDFJÑALSDKJFÑALSDKJFAÑLSDJFLÑ HOLA Q TAL"

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