•For the percentage of the battery power remaining, check the battery status icon in the Windows notification area.

Operating environment

This section provides information about the operating environment of the computer.

Environment:

•Maximum altitude without pressurization: 3048 m (10 000 ft)

•Temperature

–At altitudes up to 2438 m (8000 ft)

–Operating: 5.0°C to 35.0°C (41°F to 95°F)

–Storage: 5.0°C to 43.0°C (41°F to 109°F)

–At altitudes above 2438 m (8000 ft)

–Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).

•Relative humidity:

–Operating: 8% to 80%

–Storage: 5% to 95%

If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.

Attention:

•Keep electrical appliances such as an electric fan, radio, air conditioner, and microwave oven away from your computer. The strong magnetic fields generated by electronical appliances can damage the monitor and data on the hard disk drive or solid-state drive.

•Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled on or in the computer or an attached device, a short circuit or other damage might occur.

•Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Lenovo programs

Your computer comes with Lenovo programs to help you work easily and securely. The available programs might vary depending on the preinstalled Windows operating system.

To learn more about the programs and other computing solutions offered by Lenovo, go to: http://www.lenovo.com/support

Accessing Lenovo programs on the Windows 7 operating system

On the Windows 7 operating system, you can access Lenovo programs from either the Lenovo ThinkVantage® Tools program or from Control Panel.

Accessing Lenovo programs from the Lenovo ThinkVantage Tools program

To access Lenovo programs from the Lenovo ThinkVantage Tools program, click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools. Then double-click a program icon to access the program.

Chapter 1. Product overview 11

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Lenovo 20AA000MUS, T431s, 20AA000BUS Operating environment, Accessing Lenovo programs on the Windows 7 operating system
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20AA, T431s, 20AA000MUS, 20AA000BUS specifications

The Lenovo ThinkPad series has long been a favorite among business professionals and tech enthusiasts alike, and the Lenovo 20AA000BUS, 20AA000MUS, and T431s models exemplify the brand's commitment to innovation, performance, and rugged design. These laptops are designed for enterprise users who require reliability and versatility in their everyday tasks.

The Lenovo 20AA000BUS model features a robust Intel Core processor that ensures smooth multitasking and quick application launches. Paired with a generous amount of RAM, users can easily run demanding applications and simultaneously manage numerous browser tabs without a hitch. The full HD display provides sharp visuals and vibrant colors which enhance productivity, whether one is working on spreadsheets, watching videos, or conducting presentations.

In terms of connectivity, these models boast several USB ports, HDMI output, and an SD card reader, which facilitate seamless integration with various peripherals and external devices. With the inclusion of robust wireless options, including Wi-Fi and Bluetooth, users can stay connected throughout their workspaces and collaborate effortlessly with coworkers.

Security features are a priority for Lenovo, and the 20AA000MUS model does not disappoint. Built with a fingerprint reader and a webcam privacy shutter, users can feel confident in their data safety. Lenovo's Trusted Platform Module (TPM) technology further enhances system security by encrypting sensitive data.

The T431s, a prominent model in this lineup, prides itself on its sleek and lightweight design, making it easily portable for professionals on the go. The carbon fiber and magnesium alloy chassis not only lends to its durability but also ensures that it withstands the rigors of daily travel.

Battery life is another highlight of these models, capable of lasting through an entire workday, which is a significant advantage for users who often find themselves away from power sources. The Quick Charge feature allows for rapid recharging, ensuring that users can quickly power up their devices before heading into meetings or events.

Overall, the Lenovo 20AA000BUS, 20AA000MUS, and T431s represent a blend of advanced technology, user-centric design, and robust security features. They stand out as reliable companions for professionals seeking efficiency and performance in their computing devices. Whether in the office or on the move, these laptops meet the demanding needs of the modern workforce.
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