What is salesforce
Salesforce.com is a cloud computing and software-as-a-service (SaaS).It was founded in March 1999 by Marc Benioff. it is also known for its Salesforce customer relationship management (CRM) product.with the help of Salesforce platform-as-a-service (PaaS) product software developers can create Salesforce.com add-on applications.
salesforce.com also provides AppExchange, a custom application building and sharing platform.
Salesforce1 is a new mobile interface it is used to access Salesforce on mobile devices it access all Standard and Custom objects, and through salesforce1 we can publish a visualforce Page to mobile devices.
How to publish visualforce page for mobile devices
Go to Setup -> Administer ->Mobile Administration -> Salesforce1
Go to Setup -> Build -> Develop -> Pages and select a Visualforce Page
Click Edit and check the Available for Salesforce mobile apps checkbox then click Save
go to Setup -> Build -> Create -> Tabs
Create a new Visualforce Tab for your Page
Check the Mobile Ready checkbox and click Save
Navigate to Setup -> Administer -> Mobile Administration -> Mobile Navigation
Add your new visualforce Tab to the Salesforce1 menu
Go to domain.salesforce.com/one/one.app to test
What is the cloud computing
cloud is a place where you can access apps and services, and where your data can be stored securely.
no need to maintain or manage and it is infinite in size, so you do not need to worry about it running out of capacity.
you can access cloud-based applications and services from anywhere only need is a device with an internet connection.it access via web browser through internet
. it is used by large numbers of customers simultaneously at low cost.
salesforce application run in cloud so you can access it from anywhere through web browser.no need to managing hardware and software . all information is real time and in sync.you can integrations other applications and services easily with salesforce.
What is AppExchange
AppExchange is an online marketplace for third-party applications that are specifically developed with Force.com. appexchange applications are available for free, or based on monthly or yearly subscription.user can access application on real time because application run in cloud.
Difference between salesforce.com ,Force.com and salesforce1
Salesforce.com is company and the pre-built applications offered by the company.
Force.com is platform-as-a-Service (PaaS) that allows you to build your own applications or customize the standard applications.
Salesforce1 is mobile application through this user can do any operations from mobile and access Salesforce on mobile devices.