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.
Format a drive using Disk Utility on a Mac. 1  Launch Disk Utility (Applications > Utilities). 2  Select your external hard drive or USB flash drive from the list on the left. 3  Click on the Erase tab. Select the format â Mac OS Extended (HFS+), MS-DOS (FAT32), or exFAT â then name the drive. 4  Click the Erase button and the drive will start formatting.