IBM 1620
= IBM 1620
{wiki=IBM_1620}
The IBM 1620 is a scientific and instructional computer that was introduced by IBM in 1959. It was designed primarily for educational and small business applications, offering a relatively low-cost option at the time for users needing computing power. Key features of the IBM 1620 include: 1. **Architecture**: The 1620 used a decimal (rather than binary) arithmetic system, which made it easier for people familiar with mathematics to program.