Yup...need more info. It’s hard to believe it didn’t have an optical drive of some sort. CD??? Should be a DVD at least.
This is all speculation until we know what kind of machine and what software, if any, was bundled.
Likely it was an "ultrabook" - they are thin and light, but no room for an optical drive. I have a HP ultrabook (from HP's enterprise line of laptops, not the consumer stuff in Best Buy) and it has no optical drive. It's a sweet laptop, and I have not missed the optical drive at all. Everything I need I can get via wifi and our network or the web.