PuTTY - Popular free terminal application. Mostly used as an SSH client.
TortoiseSVN - The coolest interface to (Sub)version control
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
SnailSVN - Similar to Tortoise SVN for Windows but integrated into Finder
iTerm2 - A terminal emulator for macOS that does amazing things.
Xversion - Super easy enterprise class version control.