I had a nexus 7 tablet that ran like a dream when it was new. Within a year it was unusable slow. That's because google had shipper it with a very low quality S

I had a nexus 7 tablet that ran like a dream when it was new. Within a year it was unusable slow. That's because google had shipper it with a very low quality SSD. It degraded quickly, resulting in slower and slower speeds. So at least thats one way computers could get slower or keep locking up after some time.