1. I know a man who suffers from technophobia.
2. Silicon Valley is the place where many high-tech companies are located
3. Do you know the app which helps you generate and remember passwords?
4. Is there an online store where I can buy smartphone screens?
5. This is the guy who fixed my hard drive problem.
6. Online surfing is something which I do far too much of.
7. They are the developers whose software I often use.