It's about one-third as much as a Floppy Disk (3½-in).
In other words, 510.08 kilobytes is 0.3542220 times the amount of a Floppy Disk (3½-in), and the amount of a Floppy Disk (3½-in) is 2.823090 times that amount.(high density, IBM PC format)
Despite common reference to them as "1.44" megabyte (mB) disks, the actual capacity of the most common model of a 3&-in (8.9 cm) floppy disk is 1,440 kilobytes. At the height of their use 1996, there were an estimated five billion disks in use — nearly one for each person on Earth at the time.
It's about one-third as much as a Digital Photo.
In other words, the amount of a Digital Photo is 3 times 510.08 kilobytes.(5.3 megapixels, JPEG compression, 100% quality, 24 bits/pixel)
A 5.3-megapixel digital camera photo requires about 1,500 kilobytes of storage space. In 2010, it was expected that 90% of all professionally-taken photographs would be digital instead of film.
It's about one-fifth as much as a MP3 Song.
In other words, the amount of a MP3 Song is 5 times 510.08 kilobytes.(a.k.a. MPEG-1 Audio Layer 3, a.k.a. MPEG-2 Audio Layer 3) (128 Kbps, "near-CD-quality"; 3 minutes duration; average)
A three-minute song of typical quality will be about 3,000 kilobytes when encoded into MP3 format. The song Tom's Diner by Suzanne Vega was used by AT&T-Bell Labs engineer Karlheinz Brandenburg to test the compression process and is considered the first MP3 song.
It's about one-tenth as much as The Complete Works of William Shakespeare.
In other words, the amount of The Complete Works of William Shakespeare is 11 times 510.08 kilobytes.(ASCII, plain text)
The Complete Works of William Shakespeare would occupy about 5,400 kilobytes when written in plain text without formatting. These works include 38 definitively-attributed plays — 11 tragedies, 17 comedies, and 10 tragedies — as well as 154 sonnets and numerous other poems.
It's about 200 times as much as a Page of Text.
In other words, 510.08 kilobytes is 220 times the amount of a Page of Text, and the amount of a Page of Text is 0.0045 times that amount.(50 lines, 50 characters per line, ASCII encoding)
A 50-character-per-line, 50-line page of Latin alphabet text requires 2.40 kilobytes when digitally represented. The Google Books project, which has produced hundreds of millions of pages of digital text, used a robotic device to digitize over eight million titles at a rate of about 1,000 pages per second.
It's about one-one-thousand-five-hundredth as much as a Compact Disc.
In other words, 510.08 kilobytes is 0.0006756 times the amount of a Compact Disc, and the amount of a Compact Disc is 1,480 times that amount.(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 716,800 kilobytes disc will actually hold 755,000 kilobytes of data. Such disks are 1.2 mm (0.047 in) thick.
It's about 5,000 times as much as a Magnetic Stripe Card.
In other words, the amount of a Magnetic Stripe Card is 0.0002 times 510.08 kilobytes.(maximum capacity; per ISO 7811 specification)
The storage capacity of a magnetic stripe on a credit or identification card is about 0.10 kilobytes. According to legend, Forrest Parry, the IBM engineer who developed the first magnetic stripe card in 1960, was able to solve the problem of adhering the strip to the card after his wife suggested using an iron.