Respuesta :

TDBGYT
1. Process management
2. Memory management
3. Disk and file systems
4. Networking
5. Security
6. Internal security
7. External security 
zayd12345098765
       
An operating system has three main functions: (1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.



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