Intranet uses Internet protocols and is similar to a website. Difference between Internet and Intranet is that the latter, unlike the former, is an internal network, confined within an organization.
Micro SD cards are one of the smallest removable flash memory card formats designed specifically for small devices, mainly used as phone memory. Smaller than miniSD cards, and also based on the SD card format.
If your laptop is running slow, freezing or crashing, it could mean that you need a laptop memory upgrade. Operating systems, software and multimedia files keep getting bigger and hungrier, which can bog down even some of the newest computers.