Evening in Parambikkulam, Kerala, India. Evening is the time of the day between daytime and night or between sunset and bedtime. There is no precise definition in terms of clock time, but it is often considered to start around 5 p.m., 6 p.m. or 7 p.m. and to last until night-time or bedtime.
its true that WD does not make a single patter 7200rpm laptop drive in the 500+GB range (yet). The largest single platter drive you can get in 2.5 7200rpm is the 320GB WD3200BEKT. The Blue 5400rpm drive does come in a single platter 500gb size: WD5000BPVT, WD5000LPVX, & WD5000MPCK.
The capacity of hard drives has grown exponentially over time. When hard drives became available for personal computers, they offered 5-megabyte capacity. During the mid-1990s the typical hard disk drive for a PC had a capacity of about 1 gigabyte. As of December 2014, desktop hard disk drives typically had a capacity of 500 to 4000 gigabytes, while the largest-capacity drives were 8 terabytes.