Optimized Systems Software
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (April 2015) |
Company type | Software Company |
---|---|
Predecessor | Shepardson Microsystems |
Founded | 1981 |
Founders | Bill Wilkinson Mike Peters Paul Laughton Kathleen O'Brien |
Defunct | January 1988 |
Fate | Merged |
Successor | ICD |
Headquarters |
Optimized Systems Software (OSS) was a company that produced disk operating systems, programming languages with integrated development environments, and applications primarily for Atari 8-bit computers. The founders of OSS previously developed Atari DOS, Atari BASIC, and the Atari Assembler Editor for Atari, Inc., and many OSS products are substantially improved versions. OS A+ and DOS XL are based on Atari DOS. BASIC A+, BASIC XL, and BASIC XE are based on Atari BASIC. EASMD and MAC/65 are modeled on the Atari Assembler Editor. Action! is an ALGOL-inspired compiled programming language with an integrated full-screen editor. OSS also sold some software for the Apple II.[2]
OSS transitioned to the Atari ST with Personal Pascal[3] and the Mac with Personal Prolog (which was also advertised for the Atari ST, but may not have been released). OSS was not as significant in those markets. The company merged with ICD in 1988.
History
Optimized Systems Software was formed in early 1981 by Bill Wilkinson, Mike Peters, Paul Laughton, and Kathleen O'Brien.[4] Laughton, the primary author of Atari BASIC, was still employed by Atari, Inc. at the time, and had permission to be involved with OSS from his manager. O'Brien wrote the Atari Assembler Editor for Atari. Laughton and O'Brien (married) were not as involved with the company and were bought out by Peters and Wilkinson.
OSS purchased Atari BASIC, Atari DOS, and Atari Assembler Editor from Shepardson Microsystems who had concluded that their versions of BASIC and DOS were not viable.[citation needed] The new company enhanced the programs, renaming them OS/A+ (the Disk Operating System), BASIC A+ (a disk-based language), and EASMD (an update to the Assembler Editor). OSS continued to work with Atari, Inc. (who had previously contracted with SMI) on enhanced products, most of which never reached the market.
OSS debuted at the West Coast Computer Faire in March 1981. The products they released over the next several years became respected among Atari programmers, particularly the MAC/65 assembler, the Action! programming language, and BASIC XL. In a 1984 interview, Bill Wilkinson said the company consisted of 15 people.[5]
In January 1988, OSS merged with ICD (the makers of
Disk Operating Systems
OS/A+
Atari DOS 2.0S consisted of two portions, a memory-resident portion that facilitated access to disk files by programs, and a disk-resident portion providing menu-driven utilities to format, copy, delete, rename, and otherwise manipulate files on Atari's 810 disk drive. The menu system was too large to keep memory-resident, but the necessity to reload the menu system after every program was frustrating to many users.
- OS/A+ 2.0, 2.1 was a disk-based replacement for the Atari DOS and the Apple II DOS. It replaced the menu-driven utilities with a compact command line approach similar to CP/M (and later, MS-DOS). The command line was small enough to remain in memory with most applications, removing the need for the dreaded post-program reload. When first introduced at the West Coast Computer Faire, the program was named CP/A, but a lawyer from Digital Research (owners of CP/M) visited the booth and the name was changed. OSS couldn't have afforded even a court filing fee.
- OS/A+ 4.1 OSS extended the successful OS/A+ product with additional capabilities for version 4, many of which were arguably ahead of their time. For example, the strict "8.3" naming scheme (eight alphanumeric characters with a three character extension) was replaced by "long" filenames, similar to the Microsoft DOS transition to VFAT in 1995.
However, unlike VFAT, OS/A+ 4.1 disks were not
DOS XL
DOS XL was designed to replace OS/A+. Included support for single and double-density disk drives. Utilized the command-prompt of OS/A+ but also included a menu program. Featured extensions that took advantage of unused memory space in Atari XL/XE computers and OSS supercartridges. Included support for Indus GT Synchromesh. Due to lack of demand and Atari working on a new version of DOS, OSS decided to halt development of DOS XL 4 and reissue OS/A+ version 4.1.[citation needed]
BASIC
The team that developed Atari BASIC while at Shepherdson Microsystems developed a series of three increasingly sophisticated BASIC interpreters at OSS.
BASIC A+
BASIC XL
BASIC XL is a bank-selected cartridge version of the language that replaced BASIC A+. It fixes bugs and has even more features. The BASIC XL Toolkit contains additional code and examples for use with the BASIC XL and a runtime package for redistribution.
A significant change in BASIC XL is the handling of line number lookups in
Antic in 1984 stated that "BASIC XL is the fastest and most powerful version of BASIC available for Atari computers", with "exceptional" documentation. The magazine concluded that "This is the language that should be built into Atari computers. Is anyone at Atari listening?"[6]
BASIC XE
BASIC XE is an enhanced version of the BASIC XL bank-selected cartridge, with additional functions and high-speed math routines. Because it requires 64KB, it only runs on an XL/XE systems. A runtime package was not released. The BASIC XL runtime can be used, but restricted to XL functions.
Assemblers
EASMD
EASMD (Edit/ASseMble/Debug) is the first editor/assembler from OSS. Based on the original Atari Assembler Editor, it was released in 1981 on disk. It was superseded by MAC/65.
MAC/65
MAC/65 is a 6502 editor and assembler originally released on disk in 1982, then on a bank-switched "supercartridge" in 1983 which includes an integrated debugger (DDT). Like Atari BASIC, MAC/65 uses line-numbered source code and tokenizes each line as it is entered. It is significantly faster than Atari's assemblers. The MAC/65 Toolkit disk contains additional code and examples.
BUG/65
BUG/65 is a machine language debugger. It was initially included with MAC/65, but the cartridge-based version of the assembler added its own debugger, DDT. BUG/65 was later added to DOS XL.
Other languages
Action!
A cartridge-based development system for a readable ALGOL-like language that compiles to efficient 6502 code. Action! combines a full-screen editor with a compiler that generates code directly to memory without involving disk access. The language found a niche for being over a hundred times faster than Atari BASIC,[7] but much easier to program in than assembly language. Compiled Action! programs require the cartridge to be present, because standard library functions are on the cartridge. The separately available Action! Run-Time Package overcomes this limitation and allows distribution of Action!-compiled projects.
The Action! Toolkit (originally called the Programmer's Aid Disk, or PAD) contains additional code and examples for use with the Action! language.
C/65
C/65 is a compiler developed by LightSpeed Software for a subset of the C programming language.[8] C/65 outputs assembly source code. An assembler like MAC/65 is needed to create an executable file.
Tiny C
Tiny C, stylized as tiny-c, is an interpreter for a subset of the C programming language; it was developed by Tiny C Associates.[2]
Personal Pascal
A one-pass, machine code generating compiler for the Pascal language developed by J. Lohse for the Atari ST and released by OSS in 1987.[3] It came with a 500+ page manual.
Applications
The Writer's Tool
A word processing application available in a bank-selected cartridge and a double-sided disk (master disk on one side, dictionary disk on the other side).[9] It was developed by Madison Micro and published by OSS in 1984.[10] According to Bill Wilkinson, OSS was already building a word processor, but stopped when The Writer's Tool was submitted.[11]
SpeedRead+
SpeedRead+ is a speed reading tutor developed for the Atari 8-bit and Apple II computers.[2]
Sales
According to Bill Wilkinson, OSS sold about 12,000 copies of Basic XL before the ICD merger. Basic XL outsold Action! by about 2.5 or 3 to 1. MAC/65 outsold Action! by about 1.5 to 1. Basic XE sold poorly and lost money. Personal Pascal sold over 10,000 copies. [citation needed]
References
- ^ "Inside Atari DOS - Introduction".
- ^ a b c "The First and Finest (OSS magazine ad)". Atari Mania.
- ^ a b "Personal Pascal for the Atari ST Manual". archive.org.
- ^ Savetz, Kevin (October 21, 2014). "Paul Laughton Interview". ANTIC: The Atari 8-Bit Podcast.
- ^ Ellison, Peter (August 1984). "Bill Wilkinson Interview". ROM. 1 (7): 13.
- ^ White, Jerry (March 1984). "Product Reviews". Antic.
- ^ Moriarty, Brian (1984). "A New Langue for the Atari!". ANALOG Computing. Archived from the original on 2017-06-27. Retrieved 2015-08-01.
- ^ "C/65". Atari Mania.
- ^ Rainbow, Tom (March 1985). "8-bit Product Reviews: Writer's Tool". Antic. 3 (11).
- ^ The Writer's Tool Manual (PDF). Optimized Systems Software, Inc. 1984.
- ^ "Interview 7: Bill Wilkinson". ANTIC The Atari 8-bit Podcast.
- Notes
- Wilkinson, Bill (1983). The Atari BASIC Source Book. Compute! Books. ISBN 0-942386-15-9.
- A User's Guide and Reference Manual for DOS XL 2.30, 1983
- OSS Newsletter - Spring 1984
- OSS Newsletter - October 1984
External links
- Dan's tribute to OSS — A site dedicated to the products produced for Atari 8-bit computers by Optimized Systems Software.
- The Atari 400/800 and OSS
- Antic Vol. 4, No. 9 - Jan 1986 Basic XE from O.S.S. (Product Review)