The IBM Personal Computer, developed at the Information Systems Division's Boca Raton, Fla., facility, was announced in August 1981 as the company's "smallest, lowest-priced computer system designed for business, school and home." Selling for as little as $1,565, the PC used an Intel 4.77 megahertz processor and Microsoft's Disk Operating System. The machine offered memory capacities from 16K to 256K and either one or two diskette drives.

Introduced in April 1987 by IBM's Entry Systems Division, the Personal System/2 family of PCs originally featured four systems -- Models 30, 50, 60 and 80 -- in a range of eight configurations providing customers with a variety of performance, memory and storage options. The Model 30 was an Intel 8-megahertz system, with either two 720K diskette drives or one 720K diskette drive and a 20-megabyte fixed disk drive.

Strictly speaking, there are three companies involved with a C-plan pension. There is IBM US, there is its subsidiary IBM UK, and there is IBM UK Pensions Trust Ltd. IBM UK appoints the majority of the directors of IBM UK Pensions Trust Ltd. Unless qualified, "IBM" can mean any of these companies, or a combination.

Yes, we will make every effort to enable students who purchase notebooks from other vendors to be configured for access to ROSS resources. However, due to the wide variety of differing hardware and configurations available via the multitude of PC notebook vendors, we may encounter problems with individual systems. If we encounter hardware, firmware, or software based issues for non-IBM systems we must refer the user back to the vendor for resolution.

http://cal003109.student.utwente.nl/stefan has info on various ports (parallel, serial, keyboard, etc.) The comp.sys.ibm.pc.hardware.* FAQ (posted on news.answers and comp.sys.ibm.pc.hardware.misc, available via ftp from ftp://rtfm.mit.edu/pub/usenet/comp.sys.ibm.pc.hardware.misc) contains connector/bus pinouts and other useful information. http://www.hut.fi/~then/electronics/computer.

Originally announced in June 1980, the IBM 3380 Direct Access Storage was available in six models. Each unit could store up to 2.52 billion bytes and had an average seek time of 16 milliseconds and a data transfer rate of 3.0 megabytes per second.

Announced in 1973, the 3890 Document Processor was designed to help banks to process and distribute more checks faster and with fewer errors. It could read and sort a minimum of 2,400 six-inch documents per minute, and could print a batch and identification number on each document to improve item control. Equipped with its own control and program storage, the 3890 could be linked directly to virtual storage models of IBM System/370 or used independently for fine sorting operations.

Announced in January 1979, the 4341 Processor provided high system performance for commercial, engineering, scientific and academic users of intermediate size System/370s and large System/360s. It was available in two model groups. Model Group 1 had an internal performance rate up to 3.2 times faster than the System/370 Model 138 and up to four times the processor storage capacity of the 138. Model Group 2 had an internal performance rate up to 1.

Boasting of state-of-the-art technology, IBM launched the 4381 processor in September 1983 to reenforce the company's commitment to professional, engineering and scientific users. Available in Model Groups 1 and 2, the 4381 was developed in IBM's Endicott, N.Y., facility and manufactured in Endicott; Vallencia, Spain and Sumare, Brazil. The 4381 bridged the gap in the 1980s between IBM's intermediate 4300 processors and the larger 308X processors.