Corporations have also worried about being able to connect their large mainframes to Apple's personal computers.

Servers became common in the early 1990s as businesses increasingly began using personal computers to provide services formerly hosted on larger mainframes or minicomputers.

Some very large and powerful mainframes had been built, and most all of them were powered by vacuum tubes.

They usually took up one or a few 19-inch rack cabinets, compared with the large mainframes that could fill a room.

The company's performance in its bread-and-butter market, the largest mainframes, is harder to evaluate.

Special consideration could be sought for large mainframes that might be used to process seismic data or in scientific research.

Each station accessed the large mainframe where all patient data was entered.

Originally they intended to house all 256 PEs in a single large mainframe, but the project quickly ran behind schedule.

Both manufacture personal computers as well as larger mainframes, software and peripherals.

But the 9370, a smaller version of the company's largest mainframes, got off to a surprisingly slow start.