Thursday, 25 October 2012

Buying An iPhone 5


This table provides us with all the possibilities regarding your options when buying a 64GB iPhone 5. It allows you to browse different options from various Mobile Phone Providers. These are: Orange, T-Mobile, O2 and Vodafone.

Thursday, 11 October 2012

Types Of Images


Monochrome Bitmap -

A Monochrome bitmap is black and white bitmap file. A monochrome bitmap is a rectangular grid of pixels, but each pixel is represented by a single bit. Eight pixels are in each byte of the bitmap. Monochrome bitmaps are often used for bitmapped text or single-coloured images.

 

16/24/256 Colour Bitmap -

A representation in which each item corresponds to one or more bits of information, esp. the information used to control the display of a computer screen. The more bits there are, the bigger the file size and the higher the definition of the image.

 

JPEG –

The degree of compression can be adjusted, allowing a selectable trade-off between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality.

 

GIF -

The Graphics Interchange Format (GIF) is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability. It is a popular format for image files, with built-in data compression.

 

TIFF -

Tagged Image File Format (abbreviated TIFF) is a file format for storing images, popular among Apple Macintosh owners, graphic artists, the publishing industry, and both amateur and professional photographers in general. As of 2009, it is under the control of Adobe Systems.

 

PNG -

Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license.

Wednesday, 10 October 2012

Networks, Service Providers and Manufacturers.


Mobile Networks

1.       Everything Everywhere (Orange/T-mobile)

2.       O2

3.       Vodafone

4.       3

Service Providers

1.       Virgin Mobile

2.       Tesco

3.       Asda

4.       GiffGaff

5.       Talktalk

6.       BT Mobile

Manufacturers

1.       Apple

2.       Motorola

3.       BlackBerry

4.       Samgsung

5.       Acer

6.       3

7.       Alcatel

8.       Asus

9.       Dell

10.   Google

11.   HP

12.   HTC

13.   Huawei

14.   I-mate

15.   INQ

16.   Nokia

17.   LG

18.   O2

19.   Orange

20.   Palm

21.   Sagem

22.   Sonim

23.   Sony

24.   Sony Ericsson

25.   T-Mobile

26.   Toshiba

27.  ZTE

28.   Vodafone

Wednesday, 3 October 2012

How Does A Mobile Phone Work?


How Does A Mobile Phone Work?

 

As you talk on your phone, it converts your voice into an electrical signal, which is then transmitted as radio waves and converted back into sound by the phone on the other end.  A basic mobile phone is therefore little more than a combined radio transmitter and a radio receiver, quite similar to a walkie-talkie or CB radio.

In order to remain portable, they need to have compact antennas and use a small amount of power. This means that mobile phones can send a signal over a very short range.

The cellular network enables you talk to your friends, however far away they are. This is done by dividing up land into hexagonal areas of land, each equipped with their own phone mast (base station.)

These massive phone masts pick up the weak signal from your phone and relay it onwards to another phone mast nearer to your friend on the other line. And if you’re on the move while you talk, your phone switches masts as you go without interrupting your call.

Thursday, 27 September 2012

First Lesson


Features of Mobile Phones

 

Bluetooth: An open wireless technology for exchanging data over short distances

MMS: Multimedia Messaging Service. A system that enables cellular phones to send and receive pictures and sound clips.

Loudspeaker:  Equipment that converts electrical impulses into sound.

Games: Playable activities that one can access from their mobile. Most phones come with default games. E.g. Nokia is usually assigned with Snake.

Wi-Fi: Wireless local area network. A local area network that uses high frequency radio signals to transmit and receive data.

3G: (of telephone technology) Third-generation.

Hands-Free-Device: A hands-free phone or other device can be used without being held in your hand.

Touchscreen: touch screen: a computer display that enables the user to interact with the computer by touching the screen.

Video Calling: Technology that allows you to have a video-conversation with someone. Your phone receives a live-feed of your caller; as does their phone receive one of you.

GPS: Global Positioning System.

Internal Memory: Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data used.

Voice Recorder:  Sound recording and reproduction is an electrical or mechanical inscription and re-creation of sound waves.

Internet:  A global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

Memo: A written message, esp. in business.

MP3 Player:  A device for playing MP3 files (eg iPod)

Memory Card:  A memory card or flash card is an electronic flash memory data storage device used for storing digital information.

Alarm: An alarm clock

USB: Universal Serial Bus (USB) is a specification to establish communication between devices and a host controller (usually personal computers), developed and invented by Ajay Bhatt while working for Intel.

 

Roaming:  The use of or ability to use a cellular phone outside of its local area.

Predictive text: Predictive text is an input technology most commonly used on mobile phones, and for accessibility.

E-Mail: A system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal.

Camcorder:  A portable combined video camera and video recorder.

Network Band:  Bandwidth in computer networking refers to the data rate supported between the highest and lowest signals on the communication channel.

SMS:  A system that allows cellular phone users to send and receive text messages.

Camera: A device for recording visual images in the form of photographs, movie film or video signals.

Personal Organiser: A personal organiser, day planner, personal analogy assistant or personal planner.

Radio: The transmission and reception of electromagnetic waves of radio frequency, esp. those carrying sound messages.

Calculator: Something used for making mathematical calculations, esp. a small electronic device with a keyboard and a visual display.