Designing Mobile Phones
Different phones suit different people. Some people may want to own a phone that has many different mobile features where as other may just want a more simple phone that they know how to use and won't get confused with.
We all use phones for different things, some may use their phone for business, little children may want a phone to play games on and some just want a mobile to interact with people. It's a useful thing to have.
There are advantages and disadvantages of having a mobile phone with all the features on it, they can be very useful and fun to have but they can also drain the battery very quickly. For example some of the energy consuming features would be: surfing the internet, watching internet TV, talking to friends, sending text messages, taking photos, using the calculator, using GPS when meeting friends.
Fashion phones, Business phones, Multifunctional phones are all aimed at a particular audience. The fashionable phones are usually for the younger people that all want the best and newest phone, the business phone for middle aged people with jobs that just need a phone for work and the Multifunctional phones for people not fussed about which phone it is, they just want a phone that has everything they need.
Wednesday, 21 November 2012
How Mobile Phones work
How mobile phones work
A Mobile phone carrier typically gets 832 radio frequencies to use in a city, each mobile phone uses two frequencies per call.
For the call to work, the caller needs transmissions from a base-station which then travels through a mobile switching center to the receiver.
A Mobile phone carrier typically gets 832 radio frequencies to use in a city, each mobile phone uses two frequencies per call.
For the call to work, the caller needs transmissions from a base-station which then travels through a mobile switching center to the receiver.
Wednesday, 7 November 2012
Mobile phone features
Mobile phone features
- Bluetooth - Bluetooth is a type of radio communication and networking protocol combined. It was developed so that devices which are near each other could exchange data.
- MP3 Player - An MP3 Player is a device that allows you to carry video's, pictures and thousands of songs. It is portable so you can take it around with you.
- Memory card - A memory card is a small, flat flash drive which is mainly used for digital cameras and mobile phones. It stores electronic data.
- Alarm - An alarm device gives you an audible or visual form of alarm for different conditions like waking up in the morning or a reminder for something.
- USB port - USB stands for Universal Serial Bus. A USB port is a connection point on computers and many other types of electronice devices.
- Roaming - Roaming allows you to use your phone abroad
- Voice recorder - A voice recorder is a sound recording device
- Predictive text - A mobile phone feature that predicts the words you are saying, reducing the number keystrokes required.
- Email - Electronic messages sent using internet.
- Internet - A global network providing a variety of information and communication facilities
- Camcorder - A portable combined video camera and video recorder
- Radio - Broadcasting sound programs to the public
- Network band - computer communication frequency
- SMS - Short messaging service
- Camera - A device that takes visual images
- Calculator - Used for making mathematical calculations
- Personal organizer - Holds personal info
- Memo - A written message/ reminder
- Internal memory - Memory built into camera
- Video calling - Internet service that allows users to communicate using webcam
- GPS - Global positioning system. An accurate worldwide navigation system.
- Touchscreen - Enables the user to interact with the phone by touching areas of the screen
- Hands-free device - Enables users to talk on the phone without holding it
- WiFi - Wireless local area network
- 3G - Third generation
- Loudspeaker - converts electrical impulses into sound
- Games - Allows you to play games on your mobile phone
- MMS - Multimedia messaging service
- Bluetooth - Bluetooth is a type of radio communication and networking protocol combined. It was developed so that devices which are near each other could exchange data.
- MP3 Player - An MP3 Player is a device that allows you to carry video's, pictures and thousands of songs. It is portable so you can take it around with you.
- Memory card - A memory card is a small, flat flash drive which is mainly used for digital cameras and mobile phones. It stores electronic data.
- Alarm - An alarm device gives you an audible or visual form of alarm for different conditions like waking up in the morning or a reminder for something.
- USB port - USB stands for Universal Serial Bus. A USB port is a connection point on computers and many other types of electronice devices.
- Roaming - Roaming allows you to use your phone abroad
- Voice recorder - A voice recorder is a sound recording device
- Predictive text - A mobile phone feature that predicts the words you are saying, reducing the number keystrokes required.
- Email - Electronic messages sent using internet.
- Internet - A global network providing a variety of information and communication facilities
- Camcorder - A portable combined video camera and video recorder
- Radio - Broadcasting sound programs to the public
- Network band - computer communication frequency
- SMS - Short messaging service
- Camera - A device that takes visual images
- Calculator - Used for making mathematical calculations
- Personal organizer - Holds personal info
- Memo - A written message/ reminder
- Internal memory - Memory built into camera
- Video calling - Internet service that allows users to communicate using webcam
- GPS - Global positioning system. An accurate worldwide navigation system.
- Touchscreen - Enables the user to interact with the phone by touching areas of the screen
- Hands-free device - Enables users to talk on the phone without holding it
- WiFi - Wireless local area network
- 3G - Third generation
- Loudspeaker - converts electrical impulses into sound
- Games - Allows you to play games on your mobile phone
- MMS - Multimedia messaging service
Thursday, 18 October 2012
What is an Image?
What's in an Image?
There are many different image file types, there is;
TIFF, PNG, GIF, JPG, RAW, BMP, PSD, PSP, etc. All of these image files are different and all have different purposes.
JPEG (*jpg; *jpeg; *jpe; *jifi) -JPEG File Interchange Format
JPG is mostly used for photographs and simliar toned images that contain lots of colour. It maintains very high image quality. JPG works by analyzing images and discarding kinds of information that is least likely to be noticed. Better graphic programmes, such as Photoshop and Paint Shop Pro allow you to view the image quality and file size as a function of compression level, so that you can conveniently choose the balance between quality and file size.
Below is an example of a JPEG image;
GIF (*gif) Graphics Interchange Format
GIF was developed by CompuServe to show images online before JPG and 24 bit colour was in use. GIF uses indexed colour, which is limited to a palette of only 256 colours. GIF files do not store the image's scaled resolution ppi number, therefore scaling is necessary every time one is printed, but this is not important for screen or web images. GIF is an excellent format for graphics, and it's main purposes are; logos, dialog boxes etc which use few colours.
Below is an example of a GIF image;
BMP (*bmp; *db) Windows Bitmap
There isn't really a reason to use this format. BMP is an uncompressed proprietary format invented by microsoft.
PNG (*png) Portable Network Graphics
PNG is a losless storage format. However, in comparison with common TIFF usage, it looks for patterns in the image that it can use to compress file size. The compression is reversible, so the image can be recovered the exact same as before.
TIFF (*tif; *tiff) Tag Image File Format
Tiff is a file format for storing images, popular among graphic artists, both amateur and professional photographers in general and the publishing industry. It was originally created by the company Aldus but since 2009 is under the control of Adobe Systems. The TIFF format is widely supported by image- manipulation applications, by publishing and page layout applications, by word processing, faxing, scanning, optical character recognition and other applications.
WMF (*wmf) Windows Metafile
WMF files are used to store vector and bitmap-format image data in memory or in disk files for later playback to an output device.
There are many different image file types, there is;
TIFF, PNG, GIF, JPG, RAW, BMP, PSD, PSP, etc. All of these image files are different and all have different purposes.
JPEG (*jpg; *jpeg; *jpe; *jifi) -JPEG File Interchange Format
JPG is mostly used for photographs and simliar toned images that contain lots of colour. It maintains very high image quality. JPG works by analyzing images and discarding kinds of information that is least likely to be noticed. Better graphic programmes, such as Photoshop and Paint Shop Pro allow you to view the image quality and file size as a function of compression level, so that you can conveniently choose the balance between quality and file size.
Below is an example of a JPEG image;
GIF (*gif) Graphics Interchange Format
GIF was developed by CompuServe to show images online before JPG and 24 bit colour was in use. GIF uses indexed colour, which is limited to a palette of only 256 colours. GIF files do not store the image's scaled resolution ppi number, therefore scaling is necessary every time one is printed, but this is not important for screen or web images. GIF is an excellent format for graphics, and it's main purposes are; logos, dialog boxes etc which use few colours.
Below is an example of a GIF image;
BMP (*bmp; *db) Windows Bitmap
There isn't really a reason to use this format. BMP is an uncompressed proprietary format invented by microsoft.
PNG (*png) Portable Network Graphics
PNG is a losless storage format. However, in comparison with common TIFF usage, it looks for patterns in the image that it can use to compress file size. The compression is reversible, so the image can be recovered the exact same as before.
TIFF (*tif; *tiff) Tag Image File Format
Tiff is a file format for storing images, popular among graphic artists, both amateur and professional photographers in general and the publishing industry. It was originally created by the company Aldus but since 2009 is under the control of Adobe Systems. The TIFF format is widely supported by image- manipulation applications, by publishing and page layout applications, by word processing, faxing, scanning, optical character recognition and other applications.
WMF (*wmf) Windows Metafile
WMF files are used to store vector and bitmap-format image data in memory or in disk files for later playback to an output device.
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