Tips for maintaining laptops

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I: Summary of regular maintenance for laptops: (1) LCD Panel: * When the laptop is not in use for an extended period of time, such as when going out for lunch or while scanning hard drives or running antivirus software, use the function key to turn off the power of the LCD screen; this helps to extend its lifespan. * Turn it off regularly; when closing the lid, don’t use too much force. Also, do not place heavy objects on top of the laptop lid. Furthermore, never put anything between the laptop’s display and keyboard, to avoid damaging the device when the lid is closed. * When cleaning the display screen, use a cloth; never use your hands or sharp objects to scrape it. When cleaning with a cloth, do not use your own cleaning solutions or the like. (2): Battery * Charge and discharge it once a month. Make sure to fully charge it first and then use it up completely; in other words, try to let the battery reach its lowest level before charging it again, and ensure it is fully charged before using it. * Turn off the device and unplug the power cable; don’t leave it plugged in all the time. (3): Keyboard * It is important to note that one should not drink water in front of the notebook, and cups used for drinking water should not be placed next to the notebook, as a precaution. (4): Hard Disk * Never move the laptop when it is turned on. Take this book outside and try not to use it; if you do use it, avoid doing so in places where it might shake, such as in a car. Try to use it in a stable environment, and avoid operating the computer in places where it is prone to shaking. * The hard drive is most vulnerable during startup and shutdown. Generally, there is little movement when turning the computer on, but sometimes, when shutting it down, there might be a rush to turn it off, with movement occurring before it has been fully shut down. It is best to wait about ten seconds after turning the machine off before moving the laptop. * Disk reorganization and scanning are performed once a month on average to improve disk access efficiency. * Try not to open multiple applications that require reading data from the hard drive at the same time, such as those used for copying files. (5): Touchpad * (6): Thermal Dissipation * When using a laptop, it must never be placed on soft surfaces such as beds or thighs; firstly, this can cause the hard drive to vibrate, and secondly, it hinders proper thermal dissipation. II: Some key points about laptops: (1) What is the difference between standby and sleep mode? Standby mode: In standby mode, the display and hard drive are turned off, and the computer operates in a power-saving mode; it can be brought back to normal operation by pressing the power button. It’s the device’s power-saving mode: aside from the memory, which remains active, all other components are in a shut down or dormant state. Everything is stored in the memory; pressing the power button, moving the mouse, or pressing a key will bring the device back to normal operation. Sleep Mode: In sleep mode, the computer saves the current state of the system to the hard drive, turns off the hard drive and monitor, and then shuts down itself. It can be restarted within about 1 minute after pressing the power button. (2) ThinkPad shortcut keys: FN+F2 – Lock the screen; Fn+F3 – Turn off the screen and enter StandBy mode; the display, hard drive, and audio are turned off. This mode can be exited by moving the mouse or pressing any key. Fn+F4: Enters standby, Suspend mode – all tasks are stopped and saved in memory; all devices except the memory are also shut down. Pressing the Fn key for more than one second releases this mode. Fn+F5: Activates wireless functionality. Usage: It is used when working with Wi-Fi; turning it off helps save power. Fn+F7: Switches the display output (LCD, external display, or simultaneous display) – this is a cyclic switching process. Fn+12: Hibernate mode (sleep) – all tasks are stopped, and the memory and current state are saved to the hard drive; the system shuts down. Fn+HomeEnd: Increases or decreases screen brightness, with a total of seven levels. Fn+PgUp: Turn on/off the screen light. FN+SPACE to reduce resolution. Numeric keypad: Shift+NumLk+ScrLk (E). Other common system operation shortcuts: Press CTRL+SHIFT while dragging an item to create a shortcut for the selected item. CTRL+ right mouse button moves the insertion point to the beginning of the next word. CTRL+ left mouse button moves the insertion point to the beginning of the previous word. CTRL+ Down arrow moves the insertion point to the beginning of the next paragraph. CTRL+ Up arrow moves the insertion point to the beginning of the previous paragraph. CTRL+SHIFT+ any arrow key to highlight a section of text. ALT+ENTER to view the properties of the selected item. ALT+F4 closes the current project or exits the current program. ALT+TAB switches between open applications. Backspace key: View the previous folder in \"My Computer\" or \"Windows Explorer\". ESC cancels the current task. Press the SHIFT key when inserting a disc into the CD-ROM drive to prevent it from playing automatically. Ctrl+Home: Quickly go to the beginning of the file or the top of the window. Ctrl+End: Quickly go to the end of the file or the bottom of the window. Alt+Enter: Switch between maximizing and minimizing the DOS window. Section 3: Laptop Batteries: 1. Batteries are consumable items and represent the most delicate components among all laptop hardware. The operational life of a battery is generally measured in terms of the number of charge and discharge cycles, with a typical lifespan of 300 to 500 cycles. 2. Batteries have the characteristic of self-discharge; therefore, even when not in use, their charge level gradually decreases over time (for example, the battery charge may drop from 100% to 99% or 98% within a week). Batteries discharge automatically, so it’s best to let them discharge completely before recharging them. Meanwhile, in another scenario, the device is often turned on without the power cable being connected first (for example, due to forgetfulness or a rush to start it), and in such cases batteries are used until the power cable is connected. The power supply then automatically charges the battery. Both of these situations are not good, because for batteries, if you intend to use them, let them run out of charge; if you need to charge them, charge them completely at once. Therefore, a charging threshold can be set so that the battery is charged only when its level drops below a certain value. ----- 3. It is best to charge the battery when its level has dropped to 3–10%, and it should be fully charged in one go. 4. Some users start using the battery to power their laptops before it has been fully charged, and they connect an external power source to charge the battery while it is still in use. Such careless usage is extremely harmful to the battery. 5. Additionally, it is best to keep the laptop turned off or in standby mode while charging the battery, as the power that the power adapter can supply is limited. If the laptop is used while charging, insufficient power from the adapter may affect the battery’s charging process.