The first floppy disks were invented by IBM to store data and programs. Floppy disks came in 8 inch, 5 1/4 inch and 3 1/2 inch forms and were used for data storage from the mid-1970's to the late 1990's. The floppies held anywhere from 1.44 MB to 6MB worth of data. Now, a micro SD or flash drive or thumb drive can hold many gigabytes of data can fit. These can be used to take your email or other programs with you and run them on any compatible computer, along with your own data. A recent TV ad showed a 4 gig drive for $5.99
Showing posts with label Gigabyte. Show all posts
Showing posts with label Gigabyte. Show all posts
Aug 5, 2011
Apr 20, 2010
Gigabytes, Terabytes, and Petabytes
One gigabyte of storage cost $228 in 1998 and costs about 88 cents today. A gigabyte holds about 7 minutes of a HD TV movie.
A terabyte is 1,024 gigabytes. The first terabyte hard drive came out in 2007. In May 2009, Yahoo! Groups had 40 terabytes of data to index.
There is an even larger scale these days, petabytes. One petabyte is 1,024 terabytes. A petabyte holds 13.3 years of HD TV movies. To provide more perspective, Google processes an average of about 20 petabytes of data per day. Finally, 50 petabytes is equal to the entire written history of mankind from the beginning of recorded history. What's next? An exabyte is 1024 petabytes.
A terabyte is 1,024 gigabytes. The first terabyte hard drive came out in 2007. In May 2009, Yahoo! Groups had 40 terabytes of data to index.
There is an even larger scale these days, petabytes. One petabyte is 1,024 terabytes. A petabyte holds 13.3 years of HD TV movies. To provide more perspective, Google processes an average of about 20 petabytes of data per day. Finally, 50 petabytes is equal to the entire written history of mankind from the beginning of recorded history. What's next? An exabyte is 1024 petabytes.
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