Nick
In Remembrance
Portable applications in general are software and programs you can run independently from a removable drives (like flash/pen drive) without going through the hassle of installing them. They are widely used and have been a favorite approach for professionals of different various industries.
http://www.hongkiat.com/blog/70-free-useful-portable-applications-you-should-know/
http://www.hongkiat.com/blog/70-free-useful-portable-applications-you-should-know/