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presentation on mobile computing
- 2. Mobile computing Mobile computingis a technology that allows transmission of data via computer, without having to be connected to a fixed physical link. Mobile voice communication and data communication is widely established throughout the world rapidly for sending and receiving data across the cellular network.It allows users to transmit data from remote locations to other remote location.
- 3. History of computingdevices When we talk about the evaluation of mobile computing. It was being used from two way radios that uses large antennas to communicate simple messages to three inch personal computers that can do almost everything a regular computer does. This actually means radio transmitters that operated on a stable base, usually with the help of large antennas. Two way radios used by police officers were also considered as mobile technology. But now, people can connect wirelessly to the internet or a private network almost anywhere. Hence, these gave more importance to the mobile computing devices. The below table gives the informations about the computing devices of their decades.
- 4. Year (A.D) Computing User-interface Communic -ationStorage 1900-1940 Mechanical & analog comms QWERTY Walkie-talkie,com -mercial radios Magnetic drum 1940-1960 Transistors,IC Batch interface Motorola car phones,sputnik Magnetic tape 1960-1970 Gemini & appollo missions OS/360,CP/M ARPANET Magnetic tape 1970-1980 Intel4004,portable touch screens inventions of mobi floppy disk Calculators -le phones PC,Laptops GUI,MAC OS commercial cell phones,motorola, Nokia etc SD card , blueray, pendrive etc 1980-2010
- 5. Working mechanism ofmobile computing 1. A radio frequency element handles power sourcing and other proprietary telecom technology sends outgoing sig -nals and recieves incoming signal from a 3G or 4G wirel -ess network. 2. The wireless network carry the data where it needs to go. Simply,data was routed through cell towers in a particul -ar provider physical network to another users phone. 3. With modern mobile computing , data is also often deliv- ered onto the internet via the providers telecom network. The working process of it are shown below with the help of video
- 6. The architecture ofmobile communication
- 7. Some advantages ofmobile computing devices are highlighted below 1.Portability: Facilitates the movement of devices within the mobile computing devices. 2.Connectivity: they have ability to be connected continuously with minimum amount of lag/downtime, without being affected by move -ments of the connected nodes. 3.Social interactivity: Maintaining the connectivity to collaborate with other users , at least within the same environment. 4.Individuality: Mobile computing devices are even useful for an indi -viduals.It fulfills the needs of an individual.
- 8. Although there arevarious advantages in favor of mobile computing but there are some disadvantages of it . They are explained below 1.Security standards: When working with mobile devices one has to dependent on public networks, requiring careful use of VPN. Security is the major concern while using a devices, one can easily attack the VPN through a huge interconnected networks. 2.Power consumption: When a power outlet or a portable generator is not available a devices goes on low battery life. hence required frequent power re-charge. 3.Potential health hazards: People who uses mobile devices are being dying from some radiations which is comin -g from those devices. 4.Human interface with device: Screens and keyboards trend to be sma -ll, which makes hard to use.