About: Microsoft Binary Format

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In computing, Microsoft Binary Format (MBF) is a format for floating-point numbers which was used in Microsoft's BASIC language products, including MBASIC, GW-BASIC and QuickBASIC prior to version 4.00. There are two main versions of the format. The original version was designed for memory-constrained systems and stored numbers in 32 bits (4 bytes), with a 23-bit mantissa, 1-bit sign, and an 8-bit exponent. Extended (12k) BASIC included a double-precision type with 64 bits.

Attributes	Values
rdf:type	software
rdfs:label	Microsoft Binary Format (en)
rdfs:comment	In computing, Microsoft Binary Format (MBF) is a format for floating-point numbers which was used in Microsoft's BASIC language products, including MBASIC, GW-BASIC and QuickBASIC prior to version 4.00. There are two main versions of the format. The original version was designed for memory-constrained systems and stored numbers in 32 bits (4 bytes), with a 23-bit mantissa, 1-bit sign, and an 8-bit exponent. Extended (12k) BASIC included a double-precision type with 64 bits. (en)
foaf:depiction
dcterms:subject	Floating point Binary arithmetic Computer arithmetic
Wikipage page ID	26322871 (xsd:integer)
Wikipage revision ID	1124600182 (xsd:integer)
Link from a Wikipage to another Wikipage	QuickBASIC Monte Davidoff Bill Gates Binary-coded decimal Denormal number Paul Allen Personal Computer Visual Basic (classic) Commodore BASIC Commodore PET GW-BASIC Multiplan NaN Coprocessor TRS-80 Level II BASIC Applesoft BASIC MBASIC MOS Technology 6502 Computing Zilog Z80 Emulator Microsoft BASIC BASIC CDC 6600 COBOL Altair 8800 Altair BASIC Floating point Currier House (Harvard College) Fortran PDP-10 Floating-point Floating point Radix point Binary arithmetic Computer arithmetic Harry R. Lewis Harvard University Tangerine Microtan 65 KIM-1 Bit TRS-80 Home computer Digital Equipment Corporation Assumed bit IBM hexadecimal floating point Infinity Intel Intel 80486 Intel 8080 Micro Instrumentation and Telemetry Systems Microsoft X86 Exponent bias IEEE 754 IEEE 754-1985 Significand MOS 6502 MASM QuickBASIC 4.00 William Morton Kahan VAX-11/780 Intel 387 Denormal Exponent
Link from a Wikipage to an external page	https://web.archive.org/web/20101026203154/http:/support.microsoft.com/kb/140520
sameAs	Microsoft Binary Format Microsoft Binary Format Microsoft Binary Format
dbp:wikiPageUsesTemplate	dbt:Anchor dbt:Mono dbt:Reflist dbt:Short_description dbt:Use_dmy_dates dbt:Use_list-defined_references dbt:When dbt:Citation_needed_span dbt:Floating-point
thumbnail	wiki-commons:Special:FilePath/Altair_8800_at_the_Computer_History_Museum,_cropped.jpg?width=300
cs1-dates	y (en)
date	May 2019 (en)
has abstract	In computing, Microsoft Binary Format (MBF) is a format for floating-point numbers which was used in Microsoft's BASIC language products, including MBASIC, GW-BASIC and QuickBASIC prior to version 4.00. There are two main versions of the format. The original version was designed for memory-constrained systems and stored numbers in 32 bits (4 bytes), with a 23-bit mantissa, 1-bit sign, and an 8-bit exponent. Extended (12k) BASIC included a double-precision type with 64 bits. During the period when it was being ported from the Intel 8080 platform to the MOS 6502 processor, computers were beginning to ship with more memory as a standard feature. This version was offered with the original 32-bit format or an optional expanded 40-bit (5-byte) format. The 40-bit format was used by most home computers of the 1970s and 1980s. These two versions are sometimes known as "6-digit" and "9-digit", respectively. On PCs with x86 processor, QuickBASIC, prior to version 4, reintroduced the double-precision format using a 55-bit mantissa in a 64-bit (8-byte) format. MBF was abandoned during the move to QuickBASIC 4, which used the standard IEEE 754 format, introduced a few years earlier. (en)
gold:hypernym	Format
prov:wasDerivedFrom	wikipedia-en:Microsoft_Binary_Format?oldid=1124600182&ns=0
page length (characters) of wiki page	37140 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Microsoft_Binary_Format

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