Missing Excel Calculation Service missing

Scenario:
One of my student tried installing Sharepoint and when he wanted to start the required services , he was not able to find Excel Calculation Services.
also links for infopath form server , business data catalog were missing.

Also he noticed Report Center template was also missing.

Solution:
Simply , It was not installed. As by mistake MOSS Standard edition was installed, things were missing.

Actually there is no separate download for MOSS Standard and Enterprise. Features and services are activated depending on Standard licence / Enterprise licence key.

Major difference between MOSS Standard vs Enterprise.
1. Forms Server
2. Excel Services
3. Report Center
4. Business Data Catalog
and more...

Article:
Product Comparision