Question: Were both Grundy NewBrain and Wave Mate Bullet around in the 1970's?
Related documents: [0]  [DOC] The Wave Mate Bullet was a Z80 single-board computer from the late 1970s and early 1980s which used the CP/M operating system. This computer is rarely seen now but has historical value as an early microcomputer pioneer. It was sold in Australia, the United States and Europe and was apparently popular in academic settings. [END] 
[1]  [DOC] The Grundy NewBrain was a microcomputer sold in the early 1980s by Grundy Business Systems Ltd of Teddington and Cambridge, England. [END] 
Answer: 
no
no