The paging system is a communication system and they can transmit brief messages to subscribers. The message sent may be an alpha-numeric message or voice data. It also includes news headlines faxes and stores quotations.
It may be sent to a particular paging subscriber through the paging system across the number with a modem or a telephone keypad. Such a message is called a page.


It is a technique called simultaneously; the wide paging systems send a page from each base station simultaneously.
It is a one-way messaging system in which base stations send messages to all subscribers.

The paging system transmits the message.
The important performance metrics used in the decision making process under had of situations (mobility management) are listed below:
Probability of call blocking
Probability of call dropping
Probability of call completion
Had off delay

Types of a paging system:-

I). Manual paging system:-In a manual paging system, a message is sent to the paging operator through a telephone call by the caller. The message is delivered to the pager through a paging network by the operator.
II). Automatic paging system:-Automatic paging system is mostly used for paging. In an automatic paging system, the coming requests are automatically processed by the paging terminal and then this information is delivered to the pager.

· Messages in paging system:-
One of the following four types of information. Messages can be delivered in a
paging system.

i.Alert tone message
ii. Voice message
iii. Digital string message
iv. Text string message

·Disadvantages:- In a wide area paging system, a paging control center is
available that connects the PSTN to different paging terminals.
The paging systems enable communication with subscribers but the system requires large transmitted powers in order of kilowatts.
It is helpful in sending short messages which are highly used by subscribers.
It requires low data rates and a large transmitter power requirement.

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mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing

Today, we will read in this article - What is mobile computing, types of mobile computing and mobile computing advantages, features, applications, and history? This is a very important topic. If you read this carefully, you will easily understand it, then let's start:
content

• what is mobile computing?
• Types of mobile computing
• principles (features) of mobile computing
• advantage of mobile computing
• the disadvantage of mobile computing
• applications of mobile computing
• evolution of mobile computing

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
what is mobile computing?
Mobile computing is a technology that allows users to transmit data, voice, and video via mobile or any other wireless device.

In other words, "Mobile computing is a technology that is used to transmit data through a mobile device to a wireless network."
In general, mobile computing is seen as a technology used in smartphones, but this is a bigger topic because it is not limited to smartphones, it is used in every device that supports mobility. Such as: - laptop, smartwatch, tablet, etc.

There are three main concepts of mobile computing that it is based on:
1.mobile communication
2.mobile hardware
3.mobile software

1: - Mobile Communication -
Mobile communication includes Adhoc networks and infrastructure networks, protocols, data formats, etc.
Here, mobile communication is one of the infrastructures that provide reliable and hassle-free communication to wireless devices.
It comes under protocols, services, bandwidth, and portals that support devices.
The data format is also defined within this, it ensures that there is no collision with other systems.
In mobile communication, radio wave infrastructure is used in which the signals are sent in the air (i.e., through the sending and received air of signals).

2: - Mobile Hardware -
Mobile hardware includes mobile devices or device components.
mobile hardware refers to the devices or mobile devices that can access or access the mobility service. It comes under laptops, smartphones, tablet PCs, smartwatches, and other personal digital assistants (PDAs).
Inside these devices, a receptor is installed which is designed to sense and receive signals. And this device works on full-duplex i.e., it can also send and receive signals at the same time.
Works on mobile hardware, wireless networks.

3: - Mobile Software -
Mobile software deals with the characteristics and requirements of mobile applications.
Mobile software is a program that can be used for mobile hardware & nbsp; Runs on. It can also call a mobile operating system.
It remains responsible for all the functions inside the device. It is also called the device's engine.
It looks at all the features and needs of mobile applications. It offers a camera, music player, cellular connectivity, Wi-Fi, Bluetooth, voice recorder, speech recognition, and video player.

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
• Classification / Types of mobile computing:-
i. Personal digital assistant (PDA):-The main purpose of this device is to act as an electronic organizer or day planner that is portable, easy to use, and capable of sharing information with a computer system.
ii. Smartphone:-This kind of phone combines phone or camera phone.
Smartphones can run multiple programs at the same time. These phones include a high-resolution touch screen, web browsers that can access and properly display standard web pages. The most common mobile operating system (OS) used by modern smartphones include Google’s Android, Apple’s ios, RIM’s Blackberry, Microsoft’s Windows phones.
iii. Tablet PC and iPads:-The mobile device is larger than a mobile phone or a PDA and integrates into a touch screen and is operated using touch-sensitive motions on the screen.

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
principles (features) of mobile computing
Its principles are as follows: -
1: - Portability - Facilitates movement of devices with the mobile computing environment.
In this, the devices can move from one place to another. And can operate anywhere in the wireless network.
2: - connectivity - Ability to continuously stay connected without being affected by the movement of the connected devices.
This is the ability by which the devices are always connected to the network. In it, the downtime / lag time is very low, even if we are taking the devices to another place, it can connect with the network Remains.
3: - social interactivity -The nodes belonging to a mobile computing system are connected with one another.
this means that a device is connected to another device to communicate.
4: - individuality - When someone connects to a mobile device network, then it is called an individual and this device can access the network for its own needs.

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
advantage of mobile computing

The benefits are given below: -
1: - location flexibility - Users can work from anywhere and from how much distance. location flexibility means that users can work from any location. We can complete several summary tasks at a time on a mobile device.
2: - saves time - this saves time whenever we travel like anything from home to office or something else, while we are traveling, we can fulfill our work by the mobile device. Which can also use the time taken to travel.
3: - enhanced productivity - it increases productivity; users can use it from their favorite place and clients in the company and the company's employees use the mobile, so that they quickly finish the work, thereby increasing their productivity.
4: - entertainment - mobile devices can be used for entertainment. We can play any movie, play and entertain ourselves by running social sites and so on.
Nowadays there is a high speed of the internet, in which any high-quality videos and educational material can be seen.
Since JIO has come to India since then, people use it only for entertainment.
5: - Ease of Research - Through this, we can do any research easily. When there was no mobile computing before, people had to go to that field to do research, but now we can collect data by searching the web on google or other sites.
6: - cloud computing - this is a service through which we can save our data in our online servers (called cloud) and whenever we have an internet connection we can access that data.
7: - social engagement -We're Facebook, Twitter can connect with people through WhatsApp, etc.

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
disadvantage of mobile computing
We have read the benefits of mobile computing but now it is necessary to read the losses which are as follows;
1: - security - Its main disadvantage is its security as mobile devices can be hacked and store important and sensitive information can be stolen.
If we use someone else's wi-fi, then he can easily hack our phone.
2: - distractions - By increasing the productivity on one hand by these devices, on the other hand, it also causes the distraction. Users also use it to look at things of extra time at the time of their work.
There are many accidents due to talking on the phone while driving.
3: - power consumption - The battery capacity of mobile devices is very low and these batteries can last a little longer. If you get stuck in a place where there is no electricity and your battery is over (Because their batteries last for more than 1 or 2 days and they have to be charged again.)
4: - the quality of connectivity - You may have noticed that sometimes 4G networks are coming full in your phone, but the speed of the internet is very low. So this is a drawback of it. There is no speed of 2G in the 4G network.
5: - cost - The cost of new technologies and devices is expensive, which makes buying a little difficult.
6: - The display screen of mobile devices is very small.
7: - If we take the phones with us then there is a danger of being stolen which could misuse your phone.

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
applications of mobile computing

• Nowadays mobile computing is used all over the place, but still, we are talking about some important areas where it is used.
• It is used in emergency services such as calling for an ambulance etc.
• It is used by stockbrokers to provide stock information.
• in the vehicles
• for estate agents
• courts (in courts)
• In companies
• To verify credit card
• e-mail
• ola uber, online hotel, flight, and other services to book online

mobile computing types of mobile computing principles, advantage, disadvantage, applications, the evolution of mobile computing
evolution of mobile computing
The idea of ​​mobile computing started in the 1990s and since then there has been a lot of change in it.
Do you know what was the first portable laptop, if not, then the first portable laptop was named Osborne? It was 10.6 kg. And its screen was 5 inches. It had two floppy disk drives and a keyboard.
And nowadays laptops include 8GB  RAM, 14-inch display screen, and intel core i7 processor and weight is up to 1.5 kg.
Nowadays we can work everything sitting at home. shopping, gaming, entertainment Everything happens in our hands. Earlier, we had to go cyber cafe to play the station, internet to play the game.
Network 2G, 2.5G, 3G, 4G and now 5G has come in some countries, so we can say that the evolution of mobile computing has been done very fast and in future it will also be able to see new technology.