not as adjective as to change comparative adjective

Question

This computer holds less information than that.

If I change this sentence into "not as adjective as",

That computer does not hold as little information as this.

Is this sentence grammatical or not?

Answer 1

2. That computer does not hold as little information as this.

This is an acceptable paraphrase of

1. This computer holds less information than that.

But although both sentences express the same relative capacities of the two computers, they do not mean the same thing.

• Sentence 1 provides information about this computer and answers the question How much information does this computer hold?

• Sentence 2 provides information about that computer and answers the question How little information does that computer hold?.

If what you are interested in the relative capacities of the two computers, sentence 2 is a very odd and indirect way of expressing yourself. Capacity is ordinarily a positive value, an "asset", ranked on a rising, positive scale—how much? But sentence 2 implies that you regard capacity as a negative value, a "debt"—the computer with the least capacity is for the purposes of your inquiry more valuable or interesting than computers with a greater capacity.