Managed code using unmanaged memory: HeapCreate, Peek and Poke

In the old days of Basic (starting over 4 decades ago), there were functions called Peek and Poke that would allow you to read and write memory directly. These were incredibly powerful commands: you could, for example, read and write directly to the hardware, like the video display, the tape cassette recorder, or the speaker. More modern versions of the language dropped Peek/Poke. However, you