Synchronous programming language. A synchronous programming language is a computer programming language optimized for programming reactive systems. Computer systems can be sorted in three main classes: transformational systems that take some inputs, process them, deliver their outputs, and terminate their execution; a typical example is a compiler; interactive systems that interact continuously with their environment, at their own speed; a typical example is the web; and reactive systems that interact continuously with their env
Open Disk Utility (Applications > Utilities). Select the DVD disc from the list on the left. You will notice that there are two DVD icons--select the one slightly indented (this is the DVD itself, whereas the first one is the drive). Click on New Image in the Disk Utility main window. Choose a name and a destination from the Save As... window. Keep in mind that your destination should have enough space to copy the entire DVD, which can be over four gigs.
To backup your DVD you cannot simply copy and paste the data inside it. You have to create an ISO image of the disc so that it copies all the data i.e. files, folders and properties of disc. To extract an ISO file from any CD or DVD you can use a free and very small utility (14 KB size) known as LC ISO Creator.Download the zip file and extract it anywhere on your computer. Now open LCISOCreator.exe by double clicking on it (no need to install this program).SO files are used to distribute disc images. For example, iso files for operating systems like Ubuntu (Linux distro) could be downloaded from the net and then burnt to a CD to create a bootable operating system disc. This tutorial will discuss three things:-. 1  Extracting an iso file from a CD or DVD.