The Mind Map Book is a classic bestseller written by Tony Buzan - inventor of Mind Map, founder of World Memory Championships, originator of World Speed Reading Tournament, organizer of Mind Sports Olympiad, world's super writer, top speaker in the brain and learning aspects, and global public media figure. All other relevant books were written based on it, and many of the authors are just the students of Tony Buzan around the world.
SuperMemo is a very old software from Poland with 30 years of development history, and has always been used by many people to learn, memorize foreign language words or examination questions, etc. But properly speaking, it is an auxiliary memory software based on the scientific anti-forgetting algorithm, which can help you memorize anything with 10~50 times of improvement on efficiency.
Camera Mind is a minimalist small game, designed to test your short-term memory ability. The whole gaming process is sort of like using a camera to take photos for memory in the brain, and the goal is to find out the different ball appeared in the new photo.
Because early Windows OS (especially before Windows 7) exists inherent defects on RAM management mechanism. As a result, it's quite common to slow down after running for some time or several large programs. Especially when many programs are running at the same time, which often leads to the RAM exhaustion and Windows crash.