How to successfully prepare SharePoint your 2013 installation.
Table of contents:
In order to install SharePoint 2013 you need to meet the following requirements. Please note that these numbers might change although they are taken from the official TechNet article when it was published.
Note about hardware requirements:
"If you contact Microsoft Customer Support Services about a production system that does not meet the minimum hardware specifications described in this document, support will be limited until the system is upgraded to the minimum requirements." 
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The following numbers are based on TechNet .
While this documentation can't apply to the different needs each company has they are based on Microsofts experience with SharePoint.
Please note that these numbers might change over time and individual requirements:
If you want to estimate your own requirements you can read "Storage and SQL Server capacity planning and configuration (SharePoint Server 2013)" .
Software requirements are depending on the type of server you are going to setup .
SharePoint 2013 needs one of the following version of SQL Server:
SharePoint 2013 needs to be installed on one of the following versions of Windows Server:
Each Windows Server where you want to install SharePoint also needs the SharePoint 2013 prerequisites:
The following updates are also needed:
SharePoint 2013 doesn’t support single-label domain names like 'domain'. Please use instead 'domain.com' .
This guide shows you the administrative and service accounts required to install SharePoint 2013. It includes the requirements, the configuration and the meaning of each account.
You also need additional accounts for content you store and SharePoint services you use.
In SharePoint content can be accessed using Web Applications and your personal content can be accessed using a Web Application called My Sites.
A Service Application describes a concept providing additional functionality you can use within your Web Applications like Search.
For the initial deployment, you must have the following domain accounts :
SQL Server Service Account
The SQL Server service account is used to run SQL Server and should be a domain account. SQL Server is required to store data from SharePoint and companies usually have a dedicated team of database administrators.
If you are a small startup or want to create an isolated environment you need to take care of this account.
SharePoint Setup Administrator
The setup administrator is used to install and configure SharePoint 2013.
SharePoint Farm Account
The farm account is used:
Any kind of site you create in SharePoint like Team Sites are part of a Web Application and a Web Application requires an Application Pool plus Application Pool Account  to run:
You can use one account for both Web Applications if you don’t have special isolation requirements for the content you store. Both accounts:
Service Applications  provide additional functionality for your sites and require a lot of different accounts. Sometimes one Service Application requires more than one account so you may want to group accounts by Service Application.
A better way to group accounts is based on their account requirements. While this looks complicated it makes sense since you have fewer accounts to create.
A Service Application is a concept based on a service. You can create one or more instances of the service. In order to communicate with the instance there is an endpoint (which is an IIS Virtual Application) using an Application Pool. Therefore, you need to provide an Application Pool account if you create a Service Application in SharePoint.
Application Pool Account for Service Applications:
* Only available using PowerShell, aren’t displayed in Central Administration
Unattended Service Accounts (Accounts for accessing External Data):
If you want to access external data sources or refresh data with Excel Services, PerformancePoint Services or Visio Graphics Service you may need an unattended service account in certain cases . This kind of account is stored inside the Secure Store Service Application.
Synchronization Connection Account:
So, if you plan to configure SharePoint you usually need additional domain accounts depending on your needs:
As you can see there is listed an additional Application Pool account 'domain\spServiceApps' which is specific to the use of SharePoint 2013 apps to achieve more isolation between apps and content.
At this point you need to decide which isolation requirements the business owner needs. I suggest requesting all accounts from your Domain Administrator at once. This scenario applies to most companies, SharePoint farms and isolation requirements.
Anyway, your business owner might have more isolation requirements if you’re working e.g. for a bank. You can use the list above as a starting point and enhance it with new accounts based on your requirements.
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