Typing Tutor IV: With Letter Invaders

Title from title screen. " ... with expanded artificial intelligence capabilities, real-language practice drills, and the LETTER INVADERS arcade game that sharpens your typing skills"--Manual cover. Below note was taking from the comments that left in 2014: "I learned to type using this software in the late 1980s. It was really, really excellent, and almost 30 years later with all the processing power, graphics and gigabytes of memory making a complete joke out of 1980s computers, I **STILL** have not seen any typing tutor program that I like as well as this one. You would need a very old floppy drive and computer to read/use these disks, if they're even still any good." Typing Tutor IV prompts you to register your name and choose a level of proficiency-beginner, two finger typist, or touch typist - the first time you use the programs many as eight people can register their names. Typing Tutor tracks each person's progress and offers appropriate levels of lessons and tests. Tests gauges user's proficiency and spots weak points. The program then offers lessons that concentrate on those weaknesses. Here the link for more detailed description: https://books.google.com/books?id=jE2OlZ9PkrkC&lpg=PA474&ots=8jQueQ-zrB&dq=Typing%20Tutor%20IV%3A%20With%20Letter%20Invaders&pg=PA474#v=onepage&q=Typing%20Tutor%20IV:%20With%20Letter%20Invaders&f=true