Most Mandarin varieties have four tones. The final stops of Middle Chinese have disappeared in most of these varieties, but some have merged them as a final glottal stop. Many Mandarin varieties, including the Beijing dialect, retain retroflex initial consonants, which have been lost in southern dialect groups.
explorer.exe is a system process that is needed for your PC to work properly. It should not be removed. Check your system now to identify unused processes that are slowing down your computer. The explorer.exe file is an executable file for Windows Explorer.
A file whose name ends in .exe is really a program that when opened - that is, selected by putting your mouse over the file name and then initiated by double-clicking your mouse, for example-causes the operating system to run the program. computer processor executes an instruction, meaning that it performs the operations called for by that instruction. An executable is a file that contains a program-that is, a particular kind of file that is capable of being executed or run as a program in the computer.