David Tebbutt is the founder of Computer town UK. Although many people see this as a successful attempt to bring people closer to the computer, David does not see it that way. He says that Computer town UK was formed for just the opposite reason, to bring computers to people and make them “people –literate”...People don't have to learn computer terms, but the experts have to explain in plain language. The computers are becoming “people- liberate”. We can infer from the text that "computer-literate" means _____ .
A、being able to afford a computer
B、being able to write computer programs
C、working with the computer and finding out its value
D、understanding the computer and knowing how to use it