The IBM 700/7000 series is a series of large-scale computer systems that were made by IBM through the 1950s and early 1960s. The series includes several different, incompatible processor architectures.

The IBM ThinkPad 701 is a subnotebook in the ThinkPad line by IBM. The 701 is colloquially known as the Butterfly due to its sliding keyboard, which was designed by John Karidis. It was developed from 1993 and sold from March 1995 until later that …

Some 25 times to 50 times faster than its predecessors, the 701 inaugurated IBM’s 700 series with rapid advancements in computing power, memory capacity and economy of size, making history as the company’s first electronic computer.

The IBM 701 Electronic Data Processing Machine, known as the Defense Calculator while in development, was IBM’s first commercial scientific computer and its first series production mainframe computer, which was announced to the public on May 21, 1952. [1]

Jun 27, 2017 · As originally sold by IBM in 1994-1995, the Butterfly was fitted with either an Intel DX2 50 mhz CPU or a DX4 75 mhz version and a 640 x 480 10.4 inch screen in DSTN (256 color) for the 701Cs or TFT (16 bit color)in the 701C.

Since its original announcement in 1970, IBM has added virtual storage and multiprocessing capabilities to the System/370, increased its suitability for complex data base/data communications (DB/DC) applications, and narrowed the broad gap that previously existed between IBM's System/3 and System/370 computer families.

The 701C features a 486: 75Mhz and 50Mhz variants, depending on which systemboard is installed. Unfortunately IBM never added cache, so these 486es are operating cacheless (the majority of IBM's 486-based machines were always produced without cache leading to a huge performance hit).

evolutionary line is the System/38 (Report 70C-491-29), announced in October 1978. The System/ 34 and System/ 38 are the obvious successors to the highly successful IBM System/3 family. The most significant difference between the System/32 and the System/34 is the number of users each can sup-t:>

70C-491-27b Computers IBM System/34 t::> functions as an execution processor, performing the actual computations. The system control processor is most visible to users and is available with three capacities of 600-nanosecond memory: 32K, 48K, and 64K bytes. The execution processor is transparent to users and has

Mar 28, 2019 · IBM Thinkpad 701C, the 1995 “butterfly” laptop Released almost twenty-five years ago, it still amazes today for a mechanism which allowed the keyboard to disappear within the case. View Article details