Flip-flop
Capacitor
Resistor
Diode
Storage
Memory
Capacity
Retrieval speed
The prohibitively large amount of power required to start a quantum computer
The problem of decoherence
The difficulty of producing precision lasers
Picking the colour of the casing
1950
1962
1974
1980
Magnetic strips
Magnetic dots
A laser beam of red light
All of these