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Operating Systems by Mind Map: Operating Systems

1. What % use windows?

1.1. virus/security risk

1.2. 90%

2. Apple,OXS,Leopard

2.1. big

2.2. more source

3. Linux: open source, free

3.1. New node

4. Definition:

4.1. The collection of software that directs a computer's operations, controlling and scheduling the execution of other programs, and managing storage, input/output, and communication resources.

5. Cell Phone Operating System

5.1. New node

6. Phone

6.1. New node