4-letter words that end in os
- 'cos — 'Cos is an informal way of saying because.
- abos — Plural form of abo.
- acos — (language) A BBS language for PRODOS 8 on Apple II. Macos is a hacked version of ACOS.
- ados — Plural form of ado.
- amos — a Hebrew prophet of the 8th century bc
- aros — Plural form of aro.
- avos — Plural form of avo.
- beos — (operating system) The operating system originally designed to run on the BeBox microcomputer. BeOS is good at both multitasking and real-time operation. It has a bash command shell, with ports of many GNU programs by Be, Inc. It has a GUI front end (not X). A C++ compiler is supplied with the machine, and there are rumours of other languages being ported in the future. BeOs eventually became used on the x86 and standard PPC. Be, Inc. went bankrupt in 1999, after releasing the last upgrade of BeOS (R5.0.3), and was sold to Palm. Several groups are currently (2003) attempting to create an R6 version of the OS. The most likely to succeed are Yellowtab and OpenBeOS, which is likely to be renamed.
- bios — Basic Input Output System: the built-in software which controls the primary functions of a PC
- btos — Convergent Technologies Operating System
- clos — Common LISP Object System
- cmos — complementary metal oxide silicon
- coos — a member of a North American Indian people living in SW Oregon
- ctos — 1. (operating system) Computerised Tomography Operating System. 2. (operating system) Convergent Technologies Operating System.
- ddos — distributed denial of service: a method of attacking a computer system by flooding it with so many messages that it is obliged to shut down
- dnos — Distributed Network Operating System
- doos — (South Africa, vulgar) vagina.
- duos — Music. duet.
- dzos — Plural form of dzo.
- egos — Plural form of ego.
- emos — Plural form of emo.
- enos — a son of Seth (Genesis 4:26; 5:6)
- epos — (obsolete) An epic.
- eros — A winged figure of a child representing love and/or its power.
- exos — A brand of Ethernet controller card and Ethernet software for Unix.
- fros — Plural form of fro.
- gcos — (operating system) /jee'kohs/ An operating system developed by General Electric from 1962; originally called GECOS (the General Electric Comprehensive Operating System). The GECOS-II operating system was developed by General Electric for the 36-bit GE-635 in 1962-1964. Contrary to rumour, GECOS was not cloned from System/360 [DOS/360?] - the GE-635 architecture was very different from the IBM 360 and GECOS was more ambitious than DOS/360. GE Information Service Divsion developed a large special multi-computer system that was not publicised because they did not wish time sharing customers to challenge their bills. Although GE ISD was marketing DTSS - the first commercial time sharing system - GE Computer Division had no license from Dartmouth and GE-ISD to market it to external customers, so they designed a time-sharing system to sell as a standard part of GECOS-III, which replaced GECOS-II in 1967. GECOS TSS was more general purpose than DTSS, it was more a programmer's tool (program editing, e-mail on a single system) than a BASIC TSS. The GE-645, a modified 635 built by the same people, was selected by MIT and Bell for the Multics project. Multics' infancy was as painful as any infancy. Bell pulled out in 1969 and later produced Unix. After the buy-out of GE's computer division by Honeywell, GECOS-III was renamed GCOS-3 (General Comprehensive Operating System). Other OS groups at Honeywell began referring to it as "God's Chosen Operating System", allegedly in reaction to the GCOS crowd's uninformed and snotty attitude about the superiority of their product. [Can anyone confirm this?] GCOS won and this led in the orphaning and eventual death of Honeywell Multics. Honeywell also decided to launch a new product line called Level64, and later DPS-7. It was decided to mainatin, at least temporarily, the 36-bit machine as top of the line, because GCOS-3 was so successfull in the 1970s. The plan in 1972-1973 was that GCOS-3 and Multics should converge. This plan was killed by Honeywell management in 1973 for lack of resources and the inability of Multics, lacking databases and transaction processing, to act as a business operating system without a substantial reinvestment. The name "GCOS" was extended to all Honeywell-marketed product lines and GCOS-64, a completely different 32-bit operating system, significanctly inspired by Multics, was designed in France and Boston. GCOS-62, another different 32-bit low-end DOS level was designed in Italy. GCOS-61 represented a new version of a small system made in France and the new DPS-6 16-bit minicomputer line got GCOS-6. When the intended merge between GCOS-3 and Multics failed, the Phoenix designers had in mind a big upgrade of the architecture to introduce segmentation and capabilities. GCOS-3 was renamed GCOS-8, well before it started to use the new features which were introduced in next generation hardware. The GCOS licenses were sold to the Japanese companies NEC and Toshiba who developed the Honeywell products, including GCOS, much further, surpassing the IBM 3090 and IBM 390. When Honeywell decided in 1984 to get its top of the range machines from NEC, they considered running Multics on them but the Multics market was considered too small. Due to the difficulty of porting the ancient Multics code they considered modifying the NEC hardware to support the Multics compilers. GCOS3 featured a good Codasyl database called IDS (Integrated Data Store) that was the model for the more successful IDMS. Several versions of transaction processing were designed for GCOS-3 and GCOS-8. An early attempt at TP for GCOS-3, not taken up in Europe, assumed that, as in Unix, a new process should be started to handle each transaction. IBM customers required a more efficient model where multiplexed threads wait for messages and can share resources. Those features were implemented as subsystems. GCOS-3 soon acquired a proper TP monitor called Transaction Driven System (TDS). TDS was essentially a Honeywell development. It later evolved into TP8 on GCOS-8. TDS and its developments were commercially successful and predated IBM CICS, which had a very similar architecture. GCOS-6 and GCOS-4 (ex-GCOS-62) were superseded by Motorola 68000-based minicomputers running Unix and the product lines were discontinued. In the late 1980s Bull took over Honeywell and Bull's management chose Unix, probably with the intent to move out of hardware into middleware. Bull killed the Boston proposal to port Multics to a platform derived from DPS-6. Very few customers rushed to convert from GCOS to Unix and new machines (of CMOS technology) were still to be introduced in 1997 with GCOS-8. GCOS played a major role in keeping Honeywell a dismal also-ran in the mainframe market. Some early Unix systems at Bell Labs used GCOS machines for print spooling and various other services. The field added to "/etc/passwd" to carry GCOS ID information was called the "GECOS field" and survives today as the "pw_gecos" member used for the user's full name and other human-ID information.
- geos — A small windowing, microkernel (less than 64 kbytes long) operating system written in heavily bummed assembly language for MS-DOS computers. It multitasks rather nicely on a 6 Mhz Intel 80286 with at least 512K memory. It was adapted to PDAs by adding pen recognition, which doesn't work very well.
- glos — Graphics Language Object System.
- goos — a thick or sticky substance: Wash that goo off your hands.
- gros — Antoine Jean [ahn-twan zhahn] /ɑ̃ˈtwan ʒɑ̃/ (Show IPA), Baron, 1771–1835, French painter.
- hhos — ha ha only serious
- isos — Plural form of iso.
- kaos — Kent Applicative Operating System
- keos — a Greek island in the Aegean, off the SE coast of the Greek mainland. 56 sq. mi. (145 sq. km).
- laos — a country in SE Asia: formerly part of French Indochina. 91,500 sq. mi. (236,985 sq. km). Capital: Vientiane.
- lcos — liquid crystal on silicon: a technology used in television screens in which liquid crystals are applied to a silicon chip, allowing the production of high resolution images
- loos — Adolf [ey-dolf;; German ah-dawlf] /ˈeɪ dɒlf;; German ˈɑ dɔlf/ (Show IPA), 1870–1933, Austrian architect and writer.
- moos — Plural form of moo.
- mtos — 1. (operating system) A family of real-time operating systems for use in embedded systems. It is developed and marketed by Industrial Programming, Inc.. 2. (operating system) MultiTOS
- naos — a temple.
- nios — Netware Input/Output Subsystem
- nyos — Lake, a volcanic lake in Cameroon, at the NW border: eruption 1986.
- pcos — polycystic ovary syndrome
- poos — excrement.
- pros — arguments or votes in favour of a proposal or motion
- qdos — (operating system) The Sinclair QL's proprietary operating system. The origin of the name is uncertain (a weak pun on kudos, perhaps, as Unix was on Multics). There was another OS around from the birth of personal computers called Q.D.O.S. - Quick And Dirty Operating System. QDOS might also stand for QL Data/Disk/Drive/Device Operating System. QDOS did the usual OS sorts of things, as well as multitasking. It was unusual in several ways. It treated all devices (serial ports, mouse ports, screen, microdrive, disk drive, keyboard, etc.) uniformly, so you could print a text file direct to disk or save a binary to the screen for example. Also logical channels could be assigned to particular physical devices. Output directed to a channel would go to the appropriate in/output. This also meant you could have many windows on screen (the QL booted up from internal ROMs with 3 windows - command line, output and program listing) all independent to some extent. Channels could be redirected without affecting the way the process sent or received the data.
- quos — quoth.
- rdos — Realtime Disk Operating System
- rtos — Real-Time Operating System
On this page, we collect all 4-letter words ending in OS. It’s easy to find right word with a certain length. It is the easiest way to find 4-letter word that ends in OS to use in Scrabble or Crossword puzzles.