تولید اپلیکیشن و تولید سایت در افغانستان

 A mobile application, most commonly referred to as an app, is a type of application software designed to run on a mobile device, such as a smartphone or tablet computer. Mobile applications frequently serve to provide users with similar services to those accessed on PCs. Apps are generally small, individual software units with limited function. This use of app software was originally popularized by Apple Inc. and its App Store, which offers thousands of applications for the iPhone, iPad and iPod Touch.

A mobile application also may be known as an app, web app, online app, iPhone app or smartphone app.

 Mobile applications

Mobile applications have become highly pervasive in recent years. Their quality is essential since application failures can lead to serious consequences, such as damage of corporate reputation or financial loss. The goal of this work is to identify and expose approaches that address the issue of quality assurance for mobile applications.

 Mobile applications

What do I need to download and use an app?
You need a smart phone or another mobile device with internet access. Not all apps work on all mobile devices. Once you buy a device, you’re committed to using the operating system and the type of apps that go with it. The Android, Apple, Microsoft, Amazon, and BlackBerry mobile operating systems have app stores online where you can look for, download, and install apps. Some online retailers also offer app stores. You’ll have to use an app store that works with your device’s operating system. To set up an account, you may have to provide a credit card number, especially if you’re going to download an app that isn’t free.

 Mobile applications

What types of data can apps access?
When you sign up with an app store or download individual apps, you may be asked for permission to let them access information on your device. Some apps may be able to access:
– your phone and email contacts
– call logs
– internet data
– calendar data
– data about the device’s location
– the device’s unique IDs
– information about how you use the app itself

 Mobile applications

Some apps access only the data they need to function; others access data that’s not related to the purpose of the app. Remember that someone may be collecting data on the websites you visit, the apps you use, and the information you provide when you’re using the device – whether it’s the app developer, the app store, an advertiser, or an ad network. And if they’re collecting your data, they may share it with other companies. If you are concerned about how your information is being shared, check the “privacy” settings on your device or look for ways to “opt-out” of data collection in the app privacy policy.

 Mobile applications

Why does the app I downloaded have ads in it? 
Developers want to provide their apps as inexpensively as possible so lots of people will use them. If they sell advertising space in the app, they can offer the app for a lower cost than if it didn’t have ads. Some developers sell space in their apps to ad networks that, in turn, sell the space to advertisers

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?A host, more fully known as a network host, refers to a computer device which helps communicate with other hosts on a network. It includes the clients and servers which send or receive data, services, or applications. The idea of server and client can be interchangeable because a host can function either as a client and as a server, or as both at the same time.

 host

In the field of mainframe computer environments, a ‘host’ represents a mainframe computer that provides host services to certain workstations. In this context, a ‘host’ is also known as a large server to the Internet audience.
In more general terms, the ‘host’ term is usually attached to a powerful device or program that delivers services to some smaller and less capable device(s) or program(s).

 host

Host vs Server
The terms host and server are often used interchangeably, but they are two different things. All servers are hosts, but not all hosts are servers. To avoid confusion, servers are often defined as a specific type of host, such as a web host or mail host. For instance, a mail host and mail server may refer to the same thing.

 host

While a server refers to a specific machine, a host may also refer to an organization that provides a service over the Internet. For example, a web host (or web hosting company) maintains multiple web servers and provides web hosting services for clients. A file host may provide online storage using multiple file servers. In other words, a hosting company hosts multiple servers that serve data to clients.

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Information technology is the study, design, development, implementation, support or management of computer-based information systems—particularly software applications and computer hardware. IT workers help ensure that computers work well for people.Nearly every company, from a software design firm, to the biggest manufacturer, to the smallest “mom & pop” store, needs information technology workers to keep their businesses running smoothly, according to industry experts.

More about information technolgy
The phrase “information technology” goes back to a 1958 article published in the Harvard Business Review. Authors Harold J. Leavitt and Thomas L. Whisler defined several types of information technology:
– Techniques for the fast processing of information
– The use of statistical and mathematical models for decision-making
– The “simulation of higher-order thinking through computer programs.”

While many aspects of this technology are uncertain, it seems clear that it will move into the managerial scene rapidly, with definite and far-reaching impact on managerial organization,” they wrote.

Six decades later, it’s clear that Leavitt and Whisler were onto something big. Today, information technology refers to everything that businesses use computers for. Information technology is building communications networks for a company, safeguarding data and information, creating and administering databases, helping employees troubleshoot problems with their computers or mobile devices, or doing a range of other work to ensure the efficiency and security of business information systems.

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 Not all clouds are the same and not one type of cloud computing is right for everyone. Several different models, types, and services have evolved to help offer the right solution for your needs.First, you need to determine the type of cloud deployment, or cloud computing architecture, that your cloud services will be implemented on. There are three different ways to deploy cloud services: on a public cloud, private cloud, or hybrid cloud.

Types of cloud computing

Public cloud
Public clouds are owned and operated by a third-party cloud service providers, which deliver their computing resources, like servers and storage, over the Internet. Microsoft Azure is an example of a public cloud. With a public cloud, all hardware, software, and other supporting infrastructure is owned and managed by the cloud provider. You access these services and manage your account using a web browser.

 Public cloud

Private cloud
A private cloud refers to cloud computing resources used exclusively by a single business or organization. A private cloud can be physically located on the company’s on-site datacenter. Some companies also pay third-party service providers to host their private cloud. A private cloud is one in which the services and infrastructure are maintained on a private network.

 Private cloud

Hybrid cloud
Hybrid clouds combine public and private clouds, bound together by technology that allows data and applications to be shared between them. By allowing data and applications to move between private and public clouds, a hybrid cloud gives your business greater flexibility, more deployment options, and helps optimize your existing infrastructure, security, and compliance.

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 cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. You typically pay only for cloud services you use, helping you lower your operating costs, run your infrastructure more efficiently, and scale as your business needs change.
In the simplest terms, cloud computing means storing and accessing data and programs over the internet instead of your computer’s hard drive. (The PCMag Encyclopedia defines it succinctly as “hardware and software services from a provider on the internet.”)

 cloud computing

How important is the cloud?
Building the infrastructure to support cloud computing now accounts for more than a third of all IT spending worldwide, according to research from IDC. Meanwhile spending on traditional, in-house IT continues to slide as computing workloads continue to move to the cloud, whether that is public cloud services offered by vendors or private clouds built by enterprises themselves. 451 Research predicts that around one-third of enterprise IT spending will be on hosting and cloud services this year “indicating a growing reliance on external sources of infrastructure, application, management and security services”. Analyst Gartner predicts that half of global enterprises using the cloud now will have gone all-in on it by 2021.

 cloud computing

According to Gartner, global spending on cloud services will reach $260bn this year up from $219.6bn. It’s also growing at a faster rate than the analysts expected. But it’s not entirely clear how much of that demand is coming from businesses that actually want to move to the cloud and how much is being created by vendors who now only offer cloud versions of their products (often because they are keen to move to away from selling one-off licences to selling potentially more lucrative and predictable cloud subscriptions).

 cloud computing

Benefits of cloud computing
The cloud’s main appeal is to reduce the time to market of applications that need to scale dynamically. Increasingly, however, developers are drawn to the cloud by the abundance of advanced new services that can be incorporated into applications, from machine learning to internet of things (IoT) connectivity.

 cloud computing

Although businesses sometimes migrate legacy applications to the cloud to reduce data center resource requirements, the real benefits accrue to new applications that take advantage of cloud services and “cloud native” attributes. The latter include microservices architecture, Linux containers to enhance application portability, and container management solutions such as Kubernetes that orchestrate container-based services. Cloud-native approaches and solutions can be part of either public clouds or private clouds and help enable highly efficient devops-style workflows.

 cloud computing

Cloud computing, public cloud or private cloud, has become the platform of choice for large applications, particularly customer-facing ones that need to change frequently or scale dynamically. More significantly, the major public clouds now lead the way in enterprise technology development, debuting new advances before they appear anywhere else. Workload by workload, enterprises are opting for the cloud, where an endless parade of exciting new technologies invite innovative use.

There are three different ways to deploy cloud services.. click to continue

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