Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_11703336_1 (cpu VARCHAR, ram VARCHAR, display_size VARCHAR)
### Question:
what is the cpu for the calculator with 28 kb of ram and display size 128×64 pixels 21×8 characters?
### Answer:
SELECT cpu FROM table_11703336_1 WHERE ram = "28 KB of ram" AND display_size = "128×64 pixels 21×8 characters"