The Korean language uses a unique keyboard layout that is entirely disassociated with the standard QWERTY layout. On the Korean keyboard, each key has a basic element of a Hangul character. When you type, you press 2 or 3 keys to form a single character. When writing an entire word, you type one key after another, and it automatically builds the proper characters.
For example:
ㄱ + ㅏ = 가
ㄴ + ㅏ = 나
ㄷ + ㅏ = 다
An entire word:
(ㅇ ㅏ ㄴ) + (ㄴ ㅕ ㅇ) + (ㅎ ㅏ) + (ㅅ ㅔ) + (ㅇ ㅛ)
안녕하세요 - Hello
Even though it takes more time to learn the Korean keyboard layout, it will help your mind associate the shape of the character, directly to the sound it makes; rather than a similar sounding roman character. To learn more about how I am learning Hangul, check out this post.
Learn how to type in Korean on a Mac:
Learn how to type in Korean on Windows: