Developer | Rockwell |
---|---|
Manufacturer | Rockwell |
Type | development computer |
Release date | 1978 |
Introductory price | US$375(equivalent to $1,700 in 2022) [1] |
CPU | MOS Technology 6502 |
Memory | 1 KB RAM |
The Rockwell AIM-65 computer is a development computer introduced in 1978 based on the MOS Technology 6502 microprocessor. The AIM-65 is essentially an expanded KIM-1 computer. Available software included a line-oriented machine code monitor, BASIC interpreter, assembler, Pascal, PL/65, and Forth development system. Available hardware included a floppy disk controller and a backplane for expansion.
Rockwell advertised the $375 AIM-65, with 1K RAM, as an "easy, inexpensive [computer] ... for learning, designing, work or just fun". [1] Standard software included the system console monitor software in ROM, called Advanced Interactive Monitor. It featured an assembler, disassembler, setting and viewing memory and registers, starting execution of other programs and more. Single stepping was made possible using non-maskable interrupt (NMI). The command prompt was the less-than sign "<", and on receiving a single character command, it added this input character and the greater-than sign ">". If the thermal printer was turned on, this would be output on a single line. The monitor included a number of service routines that could be accessed and used by a user's program to control I/O and code execution and was fully documented, including source code.
The machine featured dual cassette tape controls. [1] This made it possible to write large assembly programs using the two-pass assembler ROM. Source code in text was written twice consecutively to the input tape, and then the assembler, which could start/stop the input cassette tape using motor control, was invoked. During the first pass, the symbol table was built and stored in RAM. During the second pass, symbols would be translated and code written out on the second tape, also using start/stop motor control. Being able to avoid storing code in RAM made it possible to save a lot of space. It was, however, still important to keep the symbols list short since RAM size was often no more than 4 KB.
In 1981, Rockwell introduced an improved model with a 40-character display as the AIM-65/40. An industrial chassis version was known as the System 65 and included a PROM burner and floppy drives. Rockwell was also a pioneer in solid-state storage devices, introducing "bubble memory" non-volatile expansion boards in 1980.
Micro Technology Unlimited (MTU) made a "Visible Memory" card in 1978 that worked with the KIM-1 and AIM-65 computers, providing raster graphics display capability. MTU also made the first real-time music synthesizer for a microcomputer; it worked with the KIM-1 and AIM-65 and featured a DAC with software providing 4 voices of wavetable-lookup synthesis.
In Spain, they were distributed by Comelta. This company made various card expansions:
Comelta assembled all the options in a single box to produce a new computer, the Comelta Drac-1. The first prototype used microcassetes, but definitive versions have two 8" floppy disk drives.
In the late 1970s, the Rockwell AIM-65 and its successor, System 65, became the first computers used to board a float in the Tournament of Roses Parade. Cal Poly universities wrote their own animation control language to control hydraulic and motor actuators on floats for many years. In 2003, some of these 27-year-old computers were still in use, controlling various displays and creatures at a high-tech Halloween show near Alexandria, Virginia, U.S.A.
Compute! stated that the monitor was by itself almost worth the price of the AIM-65. It concluded that the computer was "an excellent value at the $375 needed for minimum configurations". [2]
PL/65 was a programming language designed and implemented by Rockwell International for the AIM-65. [3] It is based on a mix of ALGOL and PL/I, simplified where possible in order to adapt to the limited processing environment afforded by the 6502 (64k memory for instance).
Some models had Forth as the built-in language.
AIM-65 can be emulated using the MESS Emulator. But that emulation lacks printer support. Also, the Sysinfo.dat file states that "we would suffer from support for intelligent terminals as test equipment." [4]
The Apple II series is a family of home computers, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer, and launched in 1977 with the original Apple II.
The Amstrad CPC is a series of 8-bit home computers produced by Amstrad between 1984 and 1990. It was designed to compete in the mid-1980s home computer market dominated by the Commodore 64 and the ZX Spectrum, where it successfully established itself primarily in the United Kingdom, France, Spain, and the German-speaking parts of Europe.
The Atari 8-bit family is a series of 8-bit home computers introduced by Atari, Inc. in 1979 with the Atari 400 and Atari 800. As the first home computer architecture with coprocessors, it has graphics and sound more advanced than most of its contemporaries. Video games were a major appeal, and first-person space combat simulator Star Raiders is considered the platform's killer app. The "Atari 8-bit family" label was not contemporaneous. Atari, Inc., used the term "Atari 800 [or 400] home computer system", often combining the model names into "Atari 400/800" or "Atari home computers".
The Commodore PET is a line of personal computers produced starting in 1977 by Commodore International. A single all-in-one case combines a MOS Technology 6502 microprocessor, Commodore BASIC in read-only memory, keyboard, monochrome monitor, and, in early models, a cassette deck.
The KIM-1, short for Keyboard Input Monitor, is a small 6502-based single-board computer developed and produced by MOS Technology, Inc. and launched in 1976. It was very successful in that period, due to its low price and easy-access expandability.
The Sorcerer is a home computer system released in 1978 by the video game company Exidy, later under their Exidy Systems subsidiary. Based on the Zilog Z80 and the general layout of the emerging S-100 standard, the Sorcerer was comparatively advanced when released, especially when compared to the contemporary more commercially successful Commodore PET and TRS-80. The basic design was proposed by Paul Terrell, formerly of the Byte Shop, a pioneering computer store.
The Acorn Atom is a home computer made by Acorn Computers Ltd from 1979 to 1982, when it was replaced by the BBC Micro. The BBC Micro began life as an upgrade to the Atom, originally known as the Proton.
MicroBee was a series of networkable home computers by Applied Technology, which became publicly listed company MicroBee Systems Limited soon after its release. The original Microbee computer was designed in Australia by a team including Owen Hill and Matthew Starr.
The Compukit UK101 microcomputer (1979) is a kit clone of the Ohio Scientific Superboard II single-board computer, with a few enhancements for the UK market - notably replacing the 24×24 screen display with a more useful 48×16 layout working at UK video frequencies. The video output is black and white with 256 semigraphic characters generated by a two kilobyte ROM. It has no bit-mapped graphics capability. The video is output through a UHF modulator, designed to connect to a TV set.
The BBC Master is a home computer released by Acorn Computers in early 1986. It was designed and built for the British Broadcasting Corporation (BBC) and was the successor to the BBC Micro Model B. The Master 128 remained in production until 1993.
The Rainbow 100 is a microcomputer introduced by Digital Equipment Corporation (DEC) in 1982. This desktop unit had a monitor similar to the VT220 and a dual-CPU box with both 4 MHz Zilog Z80 and 4.81 MHz Intel 8088 CPUs. The Rainbow 100 was a triple-use machine: VT100 mode, 8-bit CP/M mode, and CP/M-86 or MS-DOS mode using the 8088. It ultimately failed to in the marketplace which became dominated by the simpler IBM PC and its clones which established the industry standard as compatibility with CP/M became less important than IBM PC compatibility. Writer David Ahl called it a disastrous foray into the personal computer market. The Rainbow was launched along with the similarly packaged DEC Professional and DECmate II which were also not successful. The failure of DEC to gain a significant foothold in the high-volume PC market would be the beginning of the end of the computer hardware industry in New England, as nearly all computer companies located there were focused on minicomputers for large organizations, from DEC to Data General, Wang, Prime, Computervision, Honeywell, and Symbolics Inc.
The Tangerine Microtan 65 was a 6502 based single board microcomputer, first sold in 1979, which could be expanded into, what was for its day, a comprehensive and powerful system. The design became the basis for what later became the Oric Atmos and later computers, which has similar keyboard addressing and tape I/O as in the Microtan 65. The Microtan 65 has a single step function that can be used for debugging at the hardware level. The computer was available as ready-built boards or as kits consisting of board and components requiring soldering together.
The Memotech MTX500 and MTX512 were a range of 8-bit Zilog Z80A based home computers released by the British company Memotech in 1983 and sold mainly in the UK, France, Germany and Scandinavia. Originally a manufacturer of memory add-ons for Sinclair machines, Memotech developed their own competing computer when it was perceived the expansion pack business would no longer be viable.
The AT&T UNIX PC is a Unix desktop computer originally developed by Convergent Technologies, and marketed by AT&T Information Systems in the mid- to late-1980s. The system was codenamed "Safari 4" and is also known as the PC 7300, and often dubbed the "3B1". Despite the latter name, the system had little in common with AT&T's line of 3B series computers. The system was tailored for use as a productivity tool in office environments and as an electronic communication center.
The SYM-1 is a single board "trainer" computer produced by Synertek Systems in 1975. It was designed by Ray Holt. Originally called the VIM-1, that name was later changed to SYM-1.
The COMX-35 was a home computer that was one of the very few systems to use the RCA 1802 microprocessor, the same microprocessor that is also used in some space probes.
The British Broadcasting Corporation Microcomputer System, or BBC Micro, is a series of microcomputers designed and built by Acorn Computers Limited in the 1980s for the Computer Literacy Project of the BBC. Designed with an emphasis on education, it was notable for its ruggedness, expandability, and the quality of its operating system. An accompanying 1982 television series, The Computer Programme, featuring Chris Serle learning to use the machine, was broadcast on BBC2.
The MRB Z 1013 was an East German single-board computer produced by VEB Robotron Riesa, which was primarily intended for private use and educational institutions. It was powered by a U880 processor and sold together with a membrane keyboard. Initially, the kit was equipped with 16 kilobytes of DRAM, which was later replaced by a 64 KB version.
The Radio-86RK is a build-it-yourself home computer designed in the Soviet Union. It was featured in the popular Radio magazine for radio hams and electronics hobbyists in 1986. The letters RK in the title stands for the words Radio ham's Computer. Design of the computer was published in a series of articles describing its logical structure, electrical circuitry, drawings of printed circuit boards and firmware. The computer could be built entirely out of standard off-the-shelf parts. Later it was also available in a kit form as well as fully assembled form.
The Gigatron TTL is a retro-style 8-bit computer, where the CPU is implemented by a set of TTL chips instead of a single microprocessor, imitating the hardware present in early arcades. Its target is the computing enthusiasts, for studying or hobby purposes.