Quartus Prime is programmable logic device design software produced by Altera; prior to Intel's separation of Altera, the software was called Intel Quartus Prime, and prior to the acquisition of Altera by Intel, it was called Altera Quartus Prime, and earlier Altera Quartus II. Quartus Prime enables analysis and synthesis of HDL designs, which enables the developer to compile their designs, perform timing analysis, examine RTL diagrams, simulate a design's reaction to different stimuli, and configure the target device with the programmer. Quartus Prime includes an implementation of VHDL and Verilog for hardware description, visual editing of logic circuits, and vector waveform simulation.