Computer Science 440
Spring
2014
Gregory M. Kapfhammer
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Operating Systems
Input/Outout Devices
Why?
User Interfaces
X Windows Systems
X
Server
X
Client
X
Protocol
Figure 5-37
Window Manager
X11
Forwarding
Synergy
http://synergy-foss.org/
Thin Clients
Fat Clients
Preference?
Popularity?
Power Management
Why?
Mobile
Server
Two Strategies
Turn
off
Devices
Use
Less
Energy
Power Consumption Profile
Most on a laptop?
Figure 5-45
CPU Scaling
Acceptable
Temperature Range?
ACPI