Zip is a concept used in the computing to name certain storage formats, whether physical or virtual. At the level of software, the zip is used for data compression (text documents, images, programs, etc.) without loss of quality.
The format (whose extension is .zip) is used by various programs, both commercial and free. Its creator, the programmer Phil Katz (founder of PKWARE), had to face a lawsuit for copyright infringement in the development of the format.
The zip appeals to various compression algorithms and supports a system encryption that is based on a unique key. Critics consider this encryption to be weak and vulnerable to different types of cyber attacks.
Between the methods compression used by zip, you will find the contraction (shrinking), the reduction (reducing) and the implosion (imploding).
Why do some users prefer RAR?
Zip is often compared to rar, and there are various approaches, ranging from mere matters of taste to in-depth analysis to find the best compression method. The records rar are smaller, present less difficulty to be divided into several parts and are easier to retrieve than zip.
These three features rar archives make them more tempting than their competition; however, the .zip extension is much more common. It is correct to say that anyone who uses the internet often has possibly downloaded a zip file at one time or another. At first glance, it is a folder that contains one or more files that are treated as a single unit.
There are many programs that are offered in this format, but there are also many others that are presented in rar. Although both produce compressed files that are apparently the same, the first difference is that rar requires a special program to be unzipped.
Another aspect in which zip and rar differ is that the latter offers a rate greater compression; in other words, the same file weighs less when converted to rar than to zip. Especially when it comes to multimedia files, rar occupies an average of 10% less that zip.
But the compression rate is not everything. Rar gives its users the ability to split compressed files, which is especially convenient for both storage and distribution. Although documents created by a casual user typically weigh no more than a few megabytes, architects, graphic designers, and filmmakers typically require several gigabytes per project; When making a backup, it is not always possible to contain all the information on a single medium.
On the other hand, rar supports the creation of recovery files, which are very useful in the event that the hard disk suffers some damage. To take advantage of this function, you simply need to create a file with the extension .rev every time a compression is performed.
The zip drive, meanwhile, is a peripheral storage using special disks (zip disks) as support. Zip disks were released by Iomega on 1994 with a capacity of 100 MB. Over time, this ability spread to the 750 MB.
The rise of CD-R and CD-RW and the appearance of pendrives they drove the popularity of zip drives to the point of eliminating them from everyday use.
On USA, finally, it is known as zip code (by Zone Improvement Plan or Zone Improvement Plan) to the code system used by the Postal Service (USPS). These ZIP codes (ZIP codes) are written in capital letters and include five numeric digits.