Is a desktop computer a type of analog computer?
No, your desktop computer is a digital computer as are virtually all modern computers.
Depends on the type of computer: Analog computers process Analog (Continuous) signals Digital computers process Digital (Discontinuous) signals Digital Signal Processors process Digitized Analog signals Any analog type signal can be digitized for a digital computer and converted back to analog for the "real world".
If you purchase a new desktop computer today what type of expansion board or NIC is it most likely to contain?
Go in start, in start menu all programs then accessories in accessories bring pointer on communication, in communication bring pointer on remote desktop connection afterclicking on remote desktop connection , Type computer name or ip address of neighbour computer then type user name and password of neighbour computer.