Ada referred to the notes as her "child." They were annotations to Menabrea's article on the Analytical Engine and their general purpose was to explain(for experts) and promote(for the public) the Analytical Engine.
In note A she first explained the differences of the Analytical and Difference Engine and she explained the capabilities of the Analytical Engine. She explained that the Analytical Engine could be "programmed" using punch cards. She always came back to the fact that there was a lot of things unclear about the engines. She predicted a new "language" would arise for such an engine, and that computers would be able to play music, which turned out to be true. Also, in note A, she showed a concept that now AI or Artificial Intelligence used in the 1980s. This is because she stumbled on the idea of using data types that were not numbers, while the Analytical Engine was designed to deal only with numbers. She said the Analytical Engine was for splitting tasks into smaller, more manageable parts.
Note B was intended for the public, and not aimed toward experts. In note B she explained the memory storage, which had much more storage than the Difference Engine. The Analytical Engine had 200 storage banks while the Difference Engine only had 7. She also showed a way that the Analytical Engine could have primitive types of comments to help users understand what was going on in the code. She was showing the difference between the instructions coded in the calculating portion and items coded to use the calculating portion. In today's computers, that would be like showing the difference between instructions coded on the cpu and hard drive. Both note A and B end on the same, in that the Analytical Engine was supposed to clear thinking.
Note C essentially just showed some things Ada learned while talking with Babbage. The main thing was "backing," a method of reading punch cards backwards(essentially having loops, like while and for loops in many standard programming languages.) This note showed that the Analytical Engine, would progress mathematics.
In note A she first explained the differences of the Analytical and Difference Engine and she explained the capabilities of the Analytical Engine. She explained that the Analytical Engine could be "programmed" using punch cards. She always came back to the fact that there was a lot of things unclear about the engines. She predicted a new "language" would arise for such an engine, and that computers would be able to play music, which turned out to be true. Also, in note A, she showed a concept that now AI or Artificial Intelligence used in the 1980s. This is because she stumbled on the idea of using data types that were not numbers, while the Analytical Engine was designed to deal only with numbers. She said the Analytical Engine was for splitting tasks into smaller, more manageable parts.
Note B was intended for the public, and not aimed toward experts. In note B she explained the memory storage, which had much more storage than the Difference Engine. The Analytical Engine had 200 storage banks while the Difference Engine only had 7. She also showed a way that the Analytical Engine could have primitive types of comments to help users understand what was going on in the code. She was showing the difference between the instructions coded in the calculating portion and items coded to use the calculating portion. In today's computers, that would be like showing the difference between instructions coded on the cpu and hard drive. Both note A and B end on the same, in that the Analytical Engine was supposed to clear thinking.
Note C essentially just showed some things Ada learned while talking with Babbage. The main thing was "backing," a method of reading punch cards backwards(essentially having loops, like while and for loops in many standard programming languages.) This note showed that the Analytical Engine, would progress mathematics.