A device usage spy can perform several functions to monitor and manage a computer's power usage and status:

Track Power States: Monitor when the computer is turned on, off, or in sleep mode, providing insights into usage patterns. Log Session Times: Record how long a computer is active or inactive, helping to analyze work habits or productivity. Detect Unauthorized Access: Alert users if the computer is turned on or accessed at unusual times, which can indicate unauthorized use. Energy Management: Help identify excessive power usage to promote energy-saving practices and reduce electricity costs. System Performance Monitoring: Analyze power state changes to determine if they correlate with performance issues or crashes. Remote Access Insights: Provide information on remote access sessions, allowing administrators to monitor how and when systems are accessed. Usage Trends: Help in understanding trends in computer usage, assisting in resource allocation or scheduling.

Overall, a device usage spy enhances monitoring capabilities, providing valuable information about computer usage and security.