PCSOFT

09 Nov 1989 - 22 Sep 1991

Topics

  1. bios (50)
  2. ms.dos (492)
  3. unix (322)
  4. os.2 (5)
  5. jezici (125)
  6. cccc (343)
  7. clipper (273)
  8. turbo.pascal (247)
  9. tools (219)
  10. grafika (189)
  11. programiranje (156)
  12. tekst.procesori (164)
  13. word.perfect (222)
  14. ventura (216)
  15. windows (270)
  16. spec.softver (212)
  17. virusi (255)
  18. zastita (44)
  19. knjige (61)
  20. razno (668)
  21. mreze (75)
  22. ms.word (42)
  23. nabavka (153)
  24. baze.podataka (60)
  25. radne.tabele (2)
  26. van.teme (17)
  27. 4dos (25)

Messages - os.2

os.2.1 vkostic,
>> Poruka Dejana Ristanovica 30.11: >> ... ili sva ta priča o OS/2 koji nit je kompatibilan sa >> DOS-om nit nije, nit je za 386 nit ga ko koristi na 286... Da, stvaro, kako stoje stvari sa OS/2 ? Imam utisak da ga kompjuterski casopisi jako forsiraju, ali ne i korisnici niti programske kuce. Pozdrav, V.K.
os.2.2 danko,
Izgleda da će u trećem kvartalu ove godine izaći OS/2 verzija 2.0 koja će se vrtiti samo na 386 fimiliji i koristiti sve mogućnosti procesora. Znači imaćemo 32-bitni mod sa 32-bitnim segmentima, novi fajl sistem (iz OS/2 1.2), više konkurentnih DOS box-ova, nove kompajlere sa 32-bitnim modelima itd. Lepo zar ne? DANKO
os.2.3 ilja,
Moram da kažem da ja još nisam video ni OS/2 1.1. Ima li to neki korisnik SEZAM-a i na šta liči? A Presentation Mgr? Ilija
os.2.4 dejanr,
Evo vesti o OS/2 2.0 sa BIX-a - ponovo zvuči kao "ono pravo" ali ponovo kasni, pojaviće se navodno tek krajem godine. ========================== microbytes/features #245, from microbytes, 5434 chars, Fri Feb 2 21:48:56 1990 -------------------------- TITLE: A Preview of New, Improved OS/2 In a technical briefing this week, Microsoft took the wraps off its awaited version of OS/2 that's optimized for the 32-bit architecture of the Intel 80386 and 80486 processors. OS/2 2.0 has some major new features that differentiate it from current versions of OS/2, which are based on the 16-bit 80286 architecture. Unlike the 16-bit segmented memory addressing model supported by OS/2 1.2 and earlier versions, OS/2 2.0 supports a paged memory addressing model similar to that used in UNIX, allowing much larger data structures than the 64K-byte segments allowed by the 16-bit architecture of the 286. OS/2 2 can use the 8086 Virtual Mode of the 386 architecture to allow up to 16 simultaneous "virtual DOS machines" to run under OS/2 -- which will allow you to cut-and-paste text and, to a limited extent, bit-mapped graphics -- between DOS and OS/2. OS/2 2 supports the new Royal fonts, or outline fonts, that are supposed to be supplied as part of Apple Computer's System 7.0 Macintosh operating system to be released later this year. (Microsoft and Apple have "crossed-licensed" the printer support software and the outline fonts. The Royal fonts are the Apple/Microsoft alternative to PostScript). That's the good news. The bad news is that OS/2 2 is far from complete and is only available in preliminary form to OS/2 software developers. Software Developer Kits priced at $2600 have been shipping to OS/2 software developers since December. Microsoft hopes to have a commercial version of OS/2 2 available by the end of this year. The One They Should Have Done ----------------------------- Nevertheless, OS/2 2.0 is the operating system that developers have been waiting for. In fact, many developers and analysts think that the 32-bit version is what Microsoft should have started with, rather than the poorly received 16-bit version, which has limited DOS compatibility and the data structure limitations of 64K segments imposed by the 16-bit architecture. Vendors of computer-aided design and numeric-intensive scientific and engineering applications have complained about the 64K-byte data structure limitation, since many of the arrays and other data structures used in numerical applications exceed 64K bytes. Using 16-bit OS/2, programmers had to use cumbersome workarounds such as "huge memory models" and "far pointers" to access larger data structures than 64K. In addition, 16-bit OS/2 allows only 1 DOS-compatibility window and limited interaction between DOS and OS/2 applications. These problems are gone in OS/2 2.0. Data structures can be of virtually any size and are comprised of 4K-byte pages, which can be swapped in and out of memory on demand (demand paging). With a maximum address space of 4 gigabytes, OS/2 2 can support any realistic application size or number of multiple tasks. Microsoft hopes to be able to run OS/2 2 on systems equipped with 4 megabytes of memory. However, the current developers' version requires 6 megabytes, and, as with other multitasking systems such as UNIX, the more memory you have, the better the performance and the larger the applications and number of tasks that can be executed. A typical OS/2 2 system in the corporate environment will probably have 8 megabytes, like most UNIX systems. Up to 16 DOS sessions can run under OS/2 2. It is possible to cut and paste text and bit-mapped graphics from DOS windows into OS/2 windows. Pasting from OS/2 to DOS, however, is limited to text. There are restrictions on the types of DOS programs supported under OS/2 2. Programs requiring DOS "extenders" such as VCPI or those supplied by Phar Lap and Rational will not run under OS/2. This means that many of the most recent DOS applications will not run in DOS windows. On the other hand, many programs using DOS extenders are also available in OS/2 versions. In fact, Lotus Release 3 is designed to run "out of the box" under either DOS or OS/2, simply by setting a menu option. OS/2 2 offers limited support for DOS device drivers. For example, Microsoft does not plan to support device drivers for network cards operating networks within DOS sessions. Obviously, Microsoft wants to promote the use of OS/2 for networking. It's Not Ready -------------- In spite of the improvements in OS/2 2, it isn't ready yet. While the new edition will run 16-bit OS/2 Version 1 applications, software developers will have to significantly modify their programs to take advantage of the 32-bit memory model of OS/2 2. But developers are more likely to support 2.0 because of the new memory model. Microsoft says it plans to eventually release a "Portable OS/2" that will run on other microprocessors, such as RISC, and on multiprocessor systems. DOS compatibility is one thing that will bring some people to OS/2 2 rather than UNIX. As one developer pointed out, companies have millions of dollars invested in DOS programs, many of which are customized, vertical applications. The ability to continue to run these older programs, while taking advantage of the multitasking features of OS/2, will be a major attraction to corporate DOS users, of which there are probably several million. If Microsoft can deliver OS/2 2 this year, it will certainly capture a larger share of the multitasking operating system market than its predecessor, version 1. --- Nick Baran
os.2.5 miro,
Ima li neko da se bavi sa OS/2 ? Treba mi pomoc !! Dobio sam verziju 1.1, izgleda mocno, ali neke stvari ne mogu da prokljuvim, a nemam User's Guide (a imam Programmer's Guide :)). Pozdrav, O /█> Ů Ţ ▀ ▀ Miro.