1. Download the code for the port driver given earlier and test it.
Nothing needed for this exercise.
2. Download code for a linked in driver and test it on your system
The book says to download drivers from git://github.com/erlang/linked_in_drivers.git but this repository no longer exists.
3. Find an operating system command to discover what kind of CPU your computer has. Write a function that returns your CPU type using the os:cmd/1
Solution in the exercise_3/ directory.
erlc cpu_info.erl
erl
1> cpu_info:get().
[{"Architecture","x86_64"},
{"CPU op-mode","32-bit, 64-bit"},
{"Model name","Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz"},
...
2> cpu_info:get("Model name").
"Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz"