typing vs touch system

typing and touch system both are nouns.

Word	Noun	Adjective	Verb	Adverb
typing	Yes	No	No	No
touch system	Yes	No	No	No

As nouns, touch system is a hyponym of typing; that is, touch system is a word with a more specific, narrower meaning than typing:

typing: writing done with a typewriter
touch system: typewriting in which the fingers are trained to hit particular keys; typist can read and type at the same time

Other hyponyms of typing include double-spacing, single-spacing, triple-spacing, touch typing.

typing (noun)	touch system (noun)
writing done with a typewriter	typewriting in which the fingers are trained to hit particular keys; typist can read and type at the same time