Before revision: The new computer had both 6502 and Z80 CPUs, promised rich expansion capabilities and included two rather unusual features: a wireless keyboard and an alarm device reporting fire, flood or burglary via phone and the built-in modem.
After revision: The new computer had both 6502 and Z80 CPUs, promised rich expansion capabilities and included two rather unusual features: a wireless keyboard and an alarm device , which could report fire, flood or burglary via phone and the built-in modem.