Simplify the following text for a Grade 10 native English-speaking person.
Original: This trend generally came to an end with the introduction of 32-bit processors , which has been a standard in general purpose computing for two decades . Only recently , with the advent of x86-64 architectures , have 64-bit processors become commonplace .
Simplified: 32-bit processors has been a standard in general purpose computing for about 20 years , but now 64-bit processors are taking the lead .