CiviEVENT (management of public events, free or fee) allows you to:

• easily create pages and registration forms for events
• send confirmation emails to registered participants
• limit the number of participants and manage overbookings
• set the type of event and receive payments through CiviContribute
• have a real-time situation about registered participants
  
• check attendees / no shows / etc.
• set-up events dedicated to members only
  
• assign participants to a CiviCRM group
• send emails to participants
• perform queries and analyses about participants
• import / export participant lists
• add custom fields