| 词条 | BLIS/COBOL |
| 释义 |
| name = BLIS/COBOL | logo = | screenshot = | caption = | developer = | source_model = | kernel_type = | supported_platforms = Data General Nova and Data General Eclipse 16-bit minicomputers | ui = | family = | released = | latest_release_version = | latest_release_date = | latest_test_version = | latest_test_date = | marketing_target = | programmed_in = COBOL | prog_language = | language = | updatemodel = | package_manager = | working_state = Historic | license = | website = }}BLIS/COBOL is a discontinued operating system that, unusually,{{fact|date=December 2009}} was written in COBOL. It is the only such system to gain reasonably wide acceptance.{{fact|date=December 2009}} It was optimised to compile business applications written in COBOL. BLIS was available on a range of Data General Nova and Data General Eclipse 16-bit minicomputers. It was marketed by Information Processing, Inc. (IPI), who regularly exhibited the product at the National Computer Conference in the 1970s and 80s. It was priced between US$830 and $10,000 depending on the number of supported users and features. In 1977, IPI boasted over 100 operational installations of the system worldwide.[1][2] By 1985, a version for the IBM PC existed called PC-BLIS.[3] Originally, most operating systems were written in assembly language for a particular processor or family of processors. Non-assembler operating systems were comparatively slow, but were easier for revision and repair. One of the reasons for the C programming language's low-level features, which resemble assembly language in some ways, is an early intent to use it for writing operating systems. Similar goals led to IBM's development of PL/S. The high-level nature of COBOL, which created some problems for operating system development, was partially addressed in BLIS, since it was deliberately optimized for COBOL. References1. ^{{cite magazine | date = 13 June 1977 | title = IPI Advertisement | url = https://books.google.com/books?id=AGFRu5N2hloC&pg=PA118&lpg=PA118&dq=blis/cobol&source=bl&ots=2S-co6MK-Y&sig=XfHrT7RB55xcM5KWYqZGVy8uRKY&hl=en&sa=X&ved=0ahUKEwixkoCV9uPJAhVJ_WMKHa9YD4MQ6AEILzAE#v=onepage&q=blis%2Fcobol&f=false | magazine = Computerworld | access-date = 17 December 2015}} {{DEFAULTSORT:Blis Cobol}}{{Operating-system-stub}}2. ^{{cite magazine | date = 31 May 1982 | title = NCC Preview '82 | url = https://books.google.com/books?id=QghOwt8qQsEC&pg=RA1-PA42&lpg=RA1-PA42&dq=blis/cobol&source=bl&ots=a2ZAo1a5Qb&sig=XWJMESKzE3aXFRfTGt_Ec2SFC3k&hl=en&sa=X&ved=0ahUKEwixkoCV9uPJAhVJ_WMKHa9YD4MQ6AEIMTAF#v=onepage&q=blis%2Fcobol&f=false | magazine = Computerworld| access-date = 17 December 2015}} 3. ^{{cite magazine | date = 8 July 1985 | title = PC-BLIS Note | url = https://books.google.com/books?id=h81aecuhbNMC&pg=PA40&lpg=PA40&dq=blis/cobol&source=bl&ots=2P8G_H_mJ6&sig=l2cdAzCN5qhWHMLO8bMdYMjuQq4&hl=en&sa=X&ved=0ahUKEwixkoCV9uPJAhVJ_WMKHa9YD4MQ6AEIMzAG#v=onepage&q=blis%2Fcobol&f=false | magazine = Computerworld| access-date = 17 December 2015}} 3 : Discontinued operating systems|COBOL|Software written primarily in assembly language |
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