The Legac-e Information Site

Operating Systems

It was established at the beginning that a computer needs an Operating System.

The function of the Operating System is to:

• Manage the computer resources
  • Memory
  • Peripherals
  • Processor
• Manage the Tasks / Applications that are executing
• Provide general services such as Date and Time

Mainframe Introduction

• Peripherals - (Input / Output Devices)
  • Disks, Cartridges, etc
  
  
• Memory
  
  
• Processors
  • Processor Resource/Systems Management (PR/SM)
  
  
• Operating Systems
  
  
• Mainframe and the Cloud