What do you think what is left brain?
Our electronic definitions web site has answer for that as well:
the left half of the human brain. It is like a computer that processes words and-numbers. It operates sequentially, meaning it uses the results of each step to perform the next step. Ideally, it is characterized by the following adjectives: verbal, mathematical, linear, logical, conscious, sequential, time-oriented, etc.
Other electronic terms somewhat related to left brain