Работа с системными функциями ОС на C++

* Work with CMOS - a conclusion "hours: minutes: seconds"

* Using the keyboard: pressing or pressed shows the left and right Shift

* Working with RAM: writes to the file the first 512 values \u200b\u200bare in the memory

* Work with ports: Starting Speaker

* Work with files via interrupts: reads from a file, the file name 1 command line parameters, output of cursive.