Quantum computers have arrived on the heels of the artificial intelligence (AI) frenzy, and the timing couldn't be better. After governments around the world invested in AI, they are now doing the same with quantum technologies. These machines represent a technological breakthrough, potent in their ability to apply quantum mechanics to perform calculations in minutes that would take today's supercomputers centuries. However, they remain unproven on a large commercial scale, inviting parallels to the emerging personal computing era of the 1980s. Investors who bought Microsoft stock at its initial public offering (IPO) price of $21 back in 1986 have enjoyed robust gains. Its shares rose over 100-fold in the decade after its IPO. The Microsoft of the quantum computing era could be Horizon Quantum (HQ +18.13%). The company develops software for quantum computers and went public this year. Horizon's goal is to be the software system of choice in the quantum computing era. If it succeeds, the company can serve a role similar to Microsoft's Windows operating system in the 1980s, which continues to dominate the PC market to this day. Here's a deeper dive into Horizon Quantum and whether it makes sense to buy shares at this early stage in its business. Horizon Quantum's competitive differentiation Horizon's focus on quantum computing software is a key distinction. Many companies in the sector are working on hardware, leaving a market gap that Horizon hopes to fill. As the only public enterprise dedicated to software for the industry, Horizon's strength lies in its first-mover advantage. At the heart of its offerings is the Triple Alpha platform, designed to enable any software developer to use quantum computers, even without experience with the technology. Triple Alpha is meant to work with any type of quantum computer. This is significant because businesses in the space