How to use DOS commands to quickly see the system clearly

If your computer has a problem, ask online experts, you must be asked what is the CPU, what is the BIOS version, what is the operating system, memory If you are a newbie, you may not be able to answer it at all. It doesn't matter, here is a trick to teach you about the situation of the system as long as a DOS command.
First step: Click “Start →Run”Open the Run dialog box, type “ldd;cmd” (without quotes, the same below) and press Enter to open the Command Prompt window.
Step 2: At the command prompt, type “systeminfo > c:\\sysInfo.txt”, press Enter to execute. Haha, then a sysInfo.txt file will be created on the root directory of the C drive, which contains your hostname, operating system details, product ID, processor model, memory, BIOS version, system directory path, virtual memory details. Detailed reports such as patch installation and network card connection.
Step 3: If you are too lazy to call the resource manager and then step into the C drive directory and then open sysInfo.txt, you can type "& c"\\sysInfo.txt” directly at the command prompt. Open this report file.
Small Tips:
★“systeminfo” is a command line tool for viewing system information brought by XP system. It can also take some special parameters to specify the format of connecting remote system and specifying display result. Specifically, you can enter the "systeminfo /?” command to view; “>” is a redirect command in DOS, you can export the results displayed by other commands to a text file, which is followed by the specified export file name. . “start” is a startup command under DOS, which is similar to how we double-click a file in the Explorer.