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In this video we learn about CPU kernel/user operational modes and how the hardware helps software (the operating system) to maintain complete control of the computer.
Content:
00:00 Intro
00:57 CPU operational modes.
02:28 Interrupts
04:02 Op. Mode switching mechanism
04:53 Kernel-mode && User-mode
07:51 Sponsor message
08:34 System calls
13:31 Op. Mode switching mechanism (Summary)
14:14 Cooperative Operating Systems
14:53 Preemptive Operating Systems
16:34 Operating system abstraction
17:03 Kernel-level Drivers
18:37 Kernel-level Software (Rootkit)
19:49 The CrowdStrike disaster
20:20 Spyware concerns with Vanguard
21:08 Video recommendations (for further information)
21:18 Close
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