AIX Version 1, introduced in 1986 for the IBM 6150 RT workstation, was based on UNIX System V Releases 1 and 2.

During the early 1960s, while also active in ASCII standardization, IBM simultaneously introduced in its product line of System / 360 the 8-bit Extended Binary Coded Decimal Interchange Code ( EBCDIC ), an expansion of their 6-bit binary-coded decimal ( BCDIC ) representation used in earlier card punches.

A few years later, in 1981, IBM introduced the first DOS based IBM PC, and due to the overwhelming popularity of PCs and their clones, DOS soon became the operating system on which the majority of BBS programs were run.

In 1964 IBM introduced its System / 360 computer architecture which was used in a series of computers that could run the same programs with different speed and performance.

IBM introduced these on the IBM 709 in 1958, and they became a common feature of their platforms.

Some implementers ( including Micro Focus, Fujitsu, Veryant, and IBM ) introduced object-oriented syntax based on the 1997 or other drafts of the full revision.

The first ( retroactively ) RISC-labeled processor ( IBM 801-IBMs Watson Research Center, mid-1970s ) was a tightly pipelined simple machine originally intended to be used as an internal microcode kernel, or engine, in CISC designs, but also became the processor that introduced the RISC idea to a somewhat larger public.

In 1981, IBM introduced the Color Graphics Adapter, which could display four colors with a resolution of 320 by 200 pixels.

In 1984 IBM introduced the Enhanced Graphics Adapter which was capable of producing 16 colors and had a resolution of 640 by 350.

When Compaq introduced the first PC based on Intel's new 80386 microprocessor, the Compaq Deskpro 386, in 1986, it marked the first CPU change to the PC platform that was not initiated by IBM.

While studying physics at the Case Institute of Technology, Knuth was introduced to the IBM 650, one of the early mainframes.

In 1981 the first IBM PC was introduced, with MS-DOS operating system.

The mass-produced vacuum tube-based IBM 704 followed in 1954 ; it introduced the use of a biased exponent.

The IBM 7094, introduced the same year, also supported single and double precision, with slightly different formats.

When the IBM PC was introduced, IBM sold its operating system as an unbundled ( but necessary ) option.

IBM later introduced OS / 2 into the United States v. Microsoft case, blaming unfair marketing tactics on Microsoft's part.

Hard disk drives were introduced in 1956 as data storage for an IBM real-time transaction processing computer and were developed for use with general purpose mainframe and minicomputers.

In 1961 IBM introduced the model 1311 disk drive, which was about the size of a washing machine and stored two million characters on a removable disk " pack.

In 1973, IBM introduced a new type of hard drive codenamed " Winchester.

Industry Standard Architecture ( ISA ) is a computer bus standard for IBM PC compatible computers introduced with the IBM Personal Computer to support its Intel 8088 microprocessor's 8-bit external data bus and extended to 16 bits for the IBM Personal Computer / AT's Intel 80286 processor.

As IBM didn't release the source of the OS / 2 JFS driver, developers ported the Linux driver back to eComStation and added the functionality to boot from a JFS partition.

Journaled File System or JFS is a 64-bit journaling filesystem created by IBM.

Early in 2008 there was speculation that IBM is no longer interested in maintaining JFS and thus it shouldn't be used in production environments.

Due to the Microsoft dependence, limited partition size, file size limit of 2GiB and the long disk check times after a crash, IBM ported the journaling file system JFS to OS / 2 as a substitute.

* JFS has the < tt > defragfs </ tt > utility on IBM operating systems.

AIX was the first operating system to utilize journaling file systems, and IBM has continuously enhanced the software with features like processor, disk and network virtualization, dynamic hardware resource allocation ( including fractional processor units ), and reliability engineering ported from its mainframe designs.

In the late 1990s, under Project Monterey, IBM and the Santa Cruz Operation planned to integrate AIX and UnixWare into a single 32-bit / 64-bit multiplatform UNIX with particular emphasis on running on Intel IA-64 ( Itanium ) architecture CPUs.

IBM intends to make 7. 1 available with an Open Beta program again.

The original AIX ( sometimes called AIX / RT ) was developed for the IBM 6150 RT workstation by IBM in conjunction with Interactive Systems Corporation, who had previously ported UNIX System III to the IBM PC for IBM as PC / IX.

DS had the distinction of being built on top of SNA, and thereby being fully compatible with DS on the IBM midrange AS / 400 and mainframe systems.

AIX PS / 2, first released in 1989, ran on IBM PS / 2 personal computers with Intel 386 and compatible processors.

AIX / 370 was released in 1990 with functional equivalence to System V Release 2 and 4. 3BSD as well as IBM enhancements.

This development effort was made partly to allow IBM to compete with Amdahl UTS.

The first model looked like the later IBM PC ( which came on the market years later ), a rectangular base unit with two floppy drives on the front, and a monitor on top with a separate detachable keyboard.

In the meantime IBM had released its original IBM PC, which incidentally looked remarkably like the Asters base with floppy drives + separate keyboard set-up.

Front panel of an IBM 701 computer with lights displaying the accumulator and other registers

Most of IBM's early binary " scientific " computers, beginning with the vacuum tube IBM 701 in 1952, used a single 36-bit accumulator, along with a separate multiplier / quotient register to handle operations with longer results.

The most popular form of online graphics was ANSI art, which combined the IBM Extended ASCII character set's blocks and symbols with ANSI escape sequences to allow changing colors on demand, provide cursor control and screen formatting, and even basic musical tones.

Schelter authored Austin Kyoto Common Lisp ( AKCL ) under contract with IBM.

* The IBM 7080 transistorized computer was backward compatible with all models of the IBM 705 vacuum tube computer.

Burroughs was one of the eight major United States computer companies ( with IBM, the largest, Honeywell, NCR Corporation, Control Data Corporation, General Electric, RCA and UNIVAC ) through most of the 1960s.