Cloud computing with AWS

Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud, offering over 200 fully featured services from data centers globally. Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies—are using AWS to lower costs, become more agile, and innovate faster.

Server Configuration:

CPU: Intel Xeon E5-2620 (2.40 GHz) or higher. You mentioned using 4 of these, which should provide ample processing power for your needs.

Memory (RAM): 32 GB RAM. This should be sufficient for most server operations, but you might want to monitor RAM usage and consider upgrading if you frequently max out.

Storage: SSD with at least 2 TB of free space. SSDs offer faster read/write speeds compared to traditional HDDs, which can significantly improve server performance.

Operating System: Windows Server 2012 or 2016. Both are robust and reliable choices for server operations.

Framework: .NET Framework 4.0. Ensure that all necessary dependencies and libraries are installed and updated.

Database: SQL Server 2012 or 2014 standard edition. Regularly backup your database and consider using RAID for redundancy and performance.

Development Environment:

Android App Development:

Language: Java

IDE: Android Studio

iOS App Development:

Language: Objective-C

IDE: Xcode

Additional Recommendations:

Backup and Redundancy: Always have a backup strategy in place. Consider using RAID configurations for redundancy and performance. Regularly backup your SQL database.

Security: Ensure that your server is protected against threats. Regularly update your OS and software, use firewalls, and consider using intrusion detection systems.

Monitoring: Use monitoring tools to keep an eye on server health, performance, and potential issues. This can help you pre-emptively address problems before they affect your users.

Database Optimization: Regularly optimize your SQL Server database. This includes tasks like indexing, query optimization, and regular maintenance.

Network: Ensure that your server has a robust and fast network connection, especially if you're handling data from 10,000 devices simultaneously.

Scaling: As your user base grows, consider scaling your server resources or moving to a cloud-based solution that can easily scale based on demand.

Development Best Practices: Since you're developing for both Android and iOS, ensure that you follow best practices for each platform. Regularly test your apps on various devices and OS versions to ensure compatibility and performance

Step-by-Step Guide to Use AWS Pricing Calculator:

1. Open the AWS Pricing Calculator: Navigate to the AWS Pricing Calculator.
2. Create an Estimate: Click on the "Create estimate" button.
3. Add Services:
4. Compute: Search for "EC2" (Elastic Compute Cloud) and add it. Choose the closest configuration to "Intel Xeon E5-2620 (2.40 GHz)" and specify that you need 4 of these.
5. Memory: The memory is often bundled with the EC2 instance type. Choose an instance type that provides at least 32 GB RAM.
6. Storage: Search for "EBS" (Elastic Block Store) and add it. Specify SSD and ensure you have at least 2 TB of storage.
7. Database: Search for "RDS" (Relational Database Service) and add it. 
8. Choose SQL Server 2012 or 2014 standard edition based on your preference.

Configure Each Service:

1. Input the details of your usage, such as the number of hours you expect the server to run monthly, any additional storage or data transfer needs, etc.
2. View Estimate Totals: After configuring each service, you can see the estimated costs per service, service groups, and overall totals.
3. Additional Services: If you need other services like backup, monitoring, or security, search for the respective AWS service and add it to your estimate.
4. Review and Save: Once you've added all the necessary services and configurations, review the total estimated cost. You can save the estimate for future reference or to share with others.
5. Remember, the AWS Pricing Calculator provides an estimate, and the actual costs might vary based on actual usage, additional services, and any price changes by AWS.
6. If you need further assistance or have specific questions about any step, please let me know!