About Icon File
ICO is a visual file format used for icons in Windows. The ICO file was first used in 1985 with the Windows 1 operating system. ICOs are used in files and folders to make the graphical interface in Windows more pleasing to the user. ICO files are icons of folders or software within the Windows operating system. As many ico files are used in Windows itself, ico files are used in specially made software because of the concern of looking nice to the users. The ICO file format is similar to the .CUR file format used for mouse in Windows. The only difference between the two is the definition.
About Joint Photographic Experts Group
JPG or JPEG is a lossy image file compression extension, which stands for Joint Photographic Eperts Group. The JPG extension is a lossy file extension that has now been accepted by many manufacturers and is seen as one of the most ideal extensions, especially for photos. JPG is capable of reducing the total file size of files up to 5% of the size. After this compression process, some tiny details of the image disappear.