Many people may not realize how much our digital life depends on hard drives. From iPod to game console, almost all digital products are inseparable from the support of hard drives. "Make hard drives bigger, faster and cheaper", this is the wish of Shugart, the founder of Shugart Technology, who is regarded as the father of hard disks. Seagate Technology, the original Shugart Technology, once sold a 2.25-inch hard drive with a 5M capacity at a price of $ 1,500. It now appears that the entire hard disk industry is indeed steadily advancing according to Shugart's words. Of course, everything now is very different at that time. Let us take a closer look. ■Magnetic storage hard drives are now in their 50s. In 1956, IBM introduced the 305 RAMAC disk storage system, which is the originator of today's hard disk. This disk storage system is about the size of a refrigerator and uses 50 double-sided two-foot-diameter disks to provide a total storage capacity of 4.4MB. The storage density of this disc is 2000 bits per square inch, which translates to a price of 10 million dollars per GB. ■Today's notebook hard drives are usually 2.5 inches, only a deck of playing cards, can store up to 160GB capacity, storage density is 131 billion bits per square inch, the price per GB is less than $ 1. ■Last year, consumers bought more than 700 million GB of hard disk storage space, 11 times as much as in 2003. ■As far as the United States is concerned, 600 million US dollars of external hard drives were sold in 2006, a 53% increase from 2005. ■In 2003, the price per GB capacity was about 2.04 US dollars, and in 2006 this price dropped to 77 cents. ■Data recording density, or capacity, has increased 60 million times in the past 50 years. ■The world ’s information capacity in 2006 was 161EB, and it is estimated that by 2008 this number will reach 988EB. Each EB is equal to one million TB. ■By 2010, the total data volume will greatly exceed the total data storage capacity, which is about a 2: 1 ratio. The global data capacity in 2007 will exceed our storage capacity for the first time. ■Research has found that on large-scale IT equipment, the annual disc replacement rate will generally exceed 1%, reaching about 2-4%, and even 13% on some systems. Tape Measure is a commonly used tool in daily life. What you often see is the Steel Tape Measure, which is commonly used in construction and decoration, and is also one of the essential tools for the family. Divided into fiber tape measure, tape measure, waist measurement and so on. Luban ruler, Feng Shui ruler, and Wen Gong ruler are also steel tape measures. Inch Tape Measure,Tape Ruler Measurements,Tape Measure Inches,Imperial Tape Measure Shangqiu Yusheng Tools co.,Ltd. , https://www.cnystools.com