Lenovo ThinkCentre M53 Hardware Maintenance Manual page 46

• Wake on Ring
Wake on Ring, sometimes referred to as Wake on Modem, is a specification that allows supported
computers and devices to resume from sleep or hibernation mode.
• Windows Management Instrumentation (WMI)
Windows Management Instrumentation is a set of extensions to the Windows Driver Model. It provides an
operating system interface through which instrumented components provide information and notification.
Security features
• Ability to enable and disable devices and USB connectors
For more information, see "Enabling or disabling a device" on page 63.
• A variety of passwords to deter unauthorized use of your computer
For more information, see "Using passwords" on page 57.
• Computrace Agent software embedded in firmware
The Computrace Agent software is an IT asset management and computer theft recovery solution.
The software detects if changes have been made on the computer, such as hardware, software, or
the computer call-in location. You might have to purchase a subscription to activate the Computrace
Agent software.
• Cover presence switch (also called intrusion switch) (available on some models)
For more information, see "Using the cover presence switch" on page 58.
• Keyboard with fingerprint reader (available on some models)
For more information, see "Using the fingerprint reader" on page 58.
• Startup sequence control
For more information, see "Selecting or changing the startup device sequence" on page 64.
• Startup without keyboard or mouse
Your computer is able to log in to the operating system without keyboard or mouse connected.
• Support for a Kensington-style cable lock
For more information, see "Attaching a Kensington-style cable lock" on page 57.
Preinstalled operating system
Your computer is preinstalled with one of the following operating systems:
• Windows 7 operating system
• Windows 8.1 operating system
Operating system(s), certified or tested for compatibility (varies by model type)
The operating system(s) listed here are being certified or tested for compatibility at the time this publication
goes to press. Additional operating systems might be identified by Lenovo as compatible with your computer
following the publication of this manual. This list is subject to change. To determine if an operating system
has been certified or tested for compatibility, check the Web site of the operating system provider.
®
• Linux
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ThinkCentre M53 Hardware Maintenance Manual