music: Name the Artist/Band that recorded this song: Song for You (Russell)?

Questions

How is 21 written in binary numbers?

What is the popular name for a small wafer of semiconductor material which forms the base for an integrated circuit?

What was the name of the educational computer toy with speech synthesiser produced by Texas Instruments in 1978 for teaching spelling?

What are Empire Monkey,Pretty Park, Concept and Melissa?

In whose honour was the high level computer language Ada named?