The easiest way to install software on a Mac or Windows laptop is to use a good package manager. On a Mac, most people use Homebrew and on Windows, Chocolatey is a good choice.
Using a package manager
Installing Homebrew on a Mac
Installing Homebrew on a Mac is easy; just follow the instructions at https://brew.sh/.
The following is the command to install Homebrew:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Once the installation is finished, test whether Homebrew is working by entering brew --version in the Terminal. You should see something like this:
$ brew --version
Homebrew 1.4.3
Homebrew/homebrew-core (git revision f4e35; last commit 2018-01-11...
