Application Of A Mobile Operating Systems

And the front is more attractive too” (Crothers). The new transformation of the iPhone 5 in 2012 still has many people turning their heads and observing the phone. When people look past the functionality of the phone and see the design for its aesthetic beauty and design, it is a no-brainer that the iPhone’s sharp yet soft appearance can attract so many people to buy the phone. Apple completely redesigned the iPhone when the iPhone 5 was released and this only has strengthened Apple and has brought many people to turn away from Android. The design is very sharp and razor like at the edges but the center is soft and a great contrast to the edge. The thinness of the phone is spectacular and also strengthens the clarity of the phone’s sharpness. The iPhone also has a retina display that is designed to create optimal viewing of a screen with the right amount of PPI (pixels per inch), so the view is never distorted but crystal clear. A sharp design and crystal clear screen has aided the iPhone and showed many that the iPhone is clearly crafted better than an Android device.

1: Physical layer: The purpose of the physical layer is it deals with the hardware components, like cads and cables for sending and receiving data of a carrier.

Layer 3: Network - The way that the data will be sent to the recipient device is determined in this layer. Logical protocols, routing and addressing are handled here.

The fifth layer is the session layer this establishes a connection,this layer makes and sets up the connection using co ordinates and could terminate conversations links. the session layer produces services that make authentication after an interruption and not only that but it can reconnect.and as well as the transporting layer it can also have the TCP and the UDP can provide services for all most all applications.An application layer is an abstraction layer that specifies the shared protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking; the Internet Protocol Suite (TCP/IP) and the Open Systems Interconnection model (OSI model).Although both models use the same term for their respective highest level layer, the detailed definitions and purposes are different.In TCP/IP, the application layer contains the communications protocols and interface methods used in process-to-process communications

1. Application (in terms of cabling infrastructure): The application layer is the OSI layer closest to the end user, which means both the OSI application layer and the user interact directly with the software application. When determining resource availability, the application layer must decide whether sufficient network or the requested communication exists.. (OSI_model#Layer_7:_application_layer)

The OSI (Open System Interconnection) model is a set of specifications that allow computers around the world to openly communicate. It is pivotal to understanding and developing computer to computer communications in a network. Each layer plays a role in the process of sending and receiving data. The application layer is the top layer (layer seven) it promotes communication between programs and lower-layer network services. The services at this layer allow the network to decipher a program's request and the program to decipher data sent from the network. The Application layer protocols, programs handles formatting, procedure, security, synchronization, and any other requirements with the network. The Presentation Layer (layer 6) acts as a translator. For instance these protocols decode the jpg/jpeg files sent within the Web server’s HTTP response. So, in the last step (the Application layer) we enter the Web address and it took us to the Web site. This step allows us to see the images and content of the site. The Session Layer (layer 5) regulates and controls the communication between two nodes on the network. It is an ongoing exchange of data between the two and keeps the connection between them for the duration. It keeps the communication secure, detects whether or not the communication has been cut off and if it has it determines where to restart the

The Application layer within the OSI reference model is where the application and the user communicates. In other words, the application layer is the ending of data that is transferred in visual form to the user. This layer provides the interface between the applications we use to communicate and the underlying network over which our messages are transmitted. The Application Layer functions are to provide the interface for application-specific protocols commonly used such as HyperText Transfer (HTTP), file transfer (FTP), Simple mail transfer (SMTP), Internet message Access (IMAP),

The iOS is an operation system for Apple. The integrated and secure software and hardware that are the platform for iPhone, iPad, and iPod touch. The functionality of iOS is user can manage their file likes Mac OS, Windows. From there, they can modify their application preferences hence run smoothly. It also provide user interface. The developments of iOS have been upgrated in many times following to many specific functions For example, in iOS2 the app Store allow whether to download or install some application among third party with their regulation. In network security, the industry-standard networking protocols that provide secure authentication and encryption of data in transmission.

Layer 5 which is the Session layer allows the applications to establish a session by connecting systems. It provides a synchronisation between communication computers as well as manages and terminates the session if required and this depends on how the communication will take place. It also provides operation such as simple, half duplex and full duplex.

The layer starts from 7 being the top layer and 1 being the lowest layer of the OSI model. Application layer- Serves as the window for users and application processes to access networks services like web browser (Internet explorer, Mozilla) protocols – DNS & SSH etc. Presentation layer- Translates data from the format send into the format that program can understand. Session Layer- Starts and end session and also keeps them isolated protocols- SMB,NFS, Socks and allows session establishment between processes running on different stations. Network- Determines addressing method for being transmitted. Transport- Defines ports and reliability protocols- TCP, UDP. Network- logical or IP addressing: Determines best path for the destination protocols- IPV4, IPV6, ICMP, IPsec. Data link- Contain data into a frame that contains a header with a destination. Switches, Mac addressing protocols- PPTP, Token Ring. Physical Link- Determines the hardware used and the method used for data transmission like cables, network interface cards, electrical

New top-end mobile phones such as the Apple Iphone are allowing a new class of mobile to emerge in the world today. Combined with its ease of use, rich design, and well-organized application system through Apple App Store makes the Iphone an appealing platform for development of other smartphones. The Apple IPhone was released on June 29, 2007 by CEO of Apple Steve Jobs (Honan). The IPhone offers many of the innovative features found on competing devices, but it also differs from other smartphones on the market.

Mobile computing is important to Google, Apple, and Facebook, mainly because the widespread use of smartphones and other mobile platforms has increased tremendously. Pretty soon, it is believed that

The application layer: this layer allows different applications to communicate with each other’s. In order to exchange different data over the network connection, the protocols included in this layer set up the standards such as DNS, HTTP, FTP. The data coded in this layer will be encapsulated to transport layer for further packing.

Even though Apple has encountered many setbacks, it continues to bring new and improve products to the market. Apple’s competitive strategy has been innovation. They have made an extraordinary effort developing, implementing, and executing its very unique strategy through innovation which has resulted in new product, and the enrichment of the existing ones. More specifically, Apple attempts to meet and supply the needs of a global market, by offering eager and enthusiastic consumers with innovated and high-quality products and services. Apple has employed a differentiation strategy linked to innovation with its three core products (computers, personal media player, mobile phones, tablets and other accessories). A key piece of their strategy involves meeting the needs of the converging digital electronics and computer markets. Apple has elected to implement its strategy by designing and developing proprietary operating systems and software technologies, thus allowing for strict protection of its intellectual rights.

A given layer in the OSI model generally communicates with three other OSI layers: the layer directly above it, the layer directly below it, and its peer layer in other networked computer systems. The data link layer in System A, for example, communicates with the network layer of System A, the physical layer of System A, and the data link layer in System B. The following figure illustrates this example.