ABSTRACT
The mobile handset, in terms of its design and functionality, must satisfy three distinct sets of requirements (Figure 4.1). These relate to the network operators, the endusers, and the handset vendors themselves. The requirements of the end user will often focus on features and capabilities, and the overall ease of use (usability), and of course, the
List the basic requirements for mobile handsets. Explain the role of standards bodies in the field of mobile handsets. Draw a diagram of the typical systems found inside a mobile phone. Explain the differences between the various types of memory found on mobile devices. List the technologies associated with displays and audio systems. Identify image and video codecs used in modern mobile equipment. Show types of serial interfaces found on mobile devices and describe typical applications. List the various OS used on mobile phones and outline the differences between them. Explain how DRM and other security systems are related to the mobile device.
