Information:  - MS-DOS (; acronym for "Microsoft Disk Operating System") is a discontinued operating system for x86-based personal computers mostly developed by Microsoft. It was the most commonly used member of the DOS family of operating systems, and was the main operating system for IBM PC compatible personal computers during the 1980s and the early 1990s, when it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system by Microsoft Corporation.  - Home computers were a class of microcomputers entering the market in 1977, and becoming common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a single nontechnical user. These computers were a distinct market segment that typically cost much less than business, scientific or engineering-oriented computers of the time such as the IBM PC, and were generally less powerful in terms of memory and expandability. However, a home computer often had better graphics and sound than contemporaneous business computers. Their most common uses were playing video games, but they were also regularly used for word processing, doing homework, and programming.  - The Commodore 1581 is a 3 - inch double - sided double - density floppy disk drive that was first made by Commodore Business Machines ( CBM ) in 1987 , primarily for its C64 and C128 home / personal computers . The drive stores 800 kilobytes using an MFM encoding but format different from MS - DOS ( 720 kB ) , Amiga ( 880 kB ) , and Mac Plus ( 800 kB ) formats . With special software it 's possible to read C1581 disks on an x86 PC system , and likewise , read MS - DOS and other formats of disks in the C1581 ( using Big Blue Reader ) , provided that the PC or other floppy handles the `` 720 kB '' size format . This capability was most frequently used to read MS - DOS disks . The drive was released in the summer of 1987 and quickly became popular with bulletin board system ( BBS ) operators and other users . Like the 1541 and 1571 , the 1581 has an onboard MOS Technology 6502 CPU with its own ROM and RAM , and uses a serial version of the IEEE - 488 interface . Inexplicably , the drive 's ROM contains commands for parallel use , although no parallel interface was available . Unlike the 1571 , which is nearly 100 % backward - compatible with the 1541 , the 1581 has limited compatibility with Commodore 's earlier drives . Although it responds to the same DOS commands , most disk utilities written prior to 1987 -- most notably fast loaders -- are so 1541 - specific that they do not work with the 1581 . The version of Commodore DOS built into the 1581 added support for partitions , which could also function as fixed - allocation subdirectories . PC - style subdirectories were rejected as being too difficult to work with in terms of block availability maps , then still much in vogue , and which for some time had been the traditional way of inquiring into block availability . When used together with the C128 , it implements faster burst mode access than the Commodore 1571 5 `` drive . When using the 1581 together with the C64 , however , it is almost as slow as the 1541 drive , due to limitations of the C64 's ROM...  - x86 is a family of backward compatible instruction set architectures based on the Intel 8086 CPU and its Intel 8088 variant. The 8086 was introduced in 1978 as a fully 16-bit extension of Intel's 8-bit based 8080 microprocessor, with memory segmentation as a solution for addressing more memory than can be covered by a plain 16-bit address. The term "x86" came into being because the names of several successors to Intel's 8086 processor end in "86", including the 80186, 80286, 80386 and 80486 processors.  - Motorola, Inc. is an American multinational telecommunications company based in Schaumburg, Illinois, United States. After having lost $4.3 billion from 2007 to 2009, the company was divided into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011. Motorola Solutions is generally considered to be the direct successor to Motorola, Inc., as the reorganization was structured with Motorola Mobility being spun off. Motorola Mobility was acquired by Lenovo in 2014.  - IBM PC compatible computers are those similar to the original IBM PC, XT, and AT, able to run the same software and support the same expansion cards as those. Such computers used to be referred to as PC clones, or IBM clones. They duplicate almost exactly all the significant features of the PC architecture, facilitated by IBM's choice of commodity hardware components and various manufacturers' ability to reverse engineer the BIOS firmware using a "clean room design" technique. Columbia Data Products built the first clone of the IBM personal computer by a clean room implementation of its BIOS.  - The Motorola 68000 ("'sixty-eight-thousand'"; also called the m68k or Motorola 68k, ""sixty-eight-kay"") is a 32-bit CISC microprocessor with a 16-bit external data bus, designed and marketed by Motorola Semiconductor Products Sector (later Freescale Semiconductor, now NXP). Introduced in 1979 with HMOS technology as the first member of the successful 32-bit m68k family of microprocessors, it is generally software forward compatible with the rest of the line despite being limited to a 16-bit wide external bus. After 37 years in production, the 68000 architecture is still in use.  - AmigaOS is the proprietary native operating system of the Amiga and AmigaOne personal computers. It was developed first by Commodore International and introduced with the launch of the first Amiga, the Amiga 1000, in 1985. Early versions of AmigaOS required the Motorola 68000 series of 16-bit and 32-bit microprocessors. Later versions were developed by Haage & Partner (AmigaOS 3.5 and 3.9) and then Hyperion Entertainment (AmigaOS 4.0-4.1). A PowerPC microprocessor is required for the most recent release, AmigaOS 4.  - The Amiga is a family of personal computers sold by Commodore in the 1980s and 1990s. Based on the Motorola 68000 family of microprocessors, the machine has a custom chipset with graphics and sound capabilities that were unprecedented for the price, and a pre-emptive multitasking operating system called AmigaOS. The Amiga provided a significant upgrade from earlier 8-bit home computers, including Commodore's own C64.  - Microsoft Windows (or simply Windows) is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry with the OS typically associated with IBM PC compatible architecture. Active Windows families include Windows NT, Windows Embedded and Windows Phone; these may encompass subfamilies, e.g. Windows Embedded Compact (Windows CE) or Windows Server. Defunct Windows families include Windows 9x; Windows 10 Mobile is an active product, unrelated to the defunct family Windows Mobile.  - Microsoft Corporation (commonly referred to as Microsoft or MS) is an American multinational technology company headquartered in Redmond, Washington, that develops, manufactures, licenses, supports and sells computer software, consumer electronics and personal computers and services. Its best known software products are the Microsoft Windows line of operating systems, Microsoft Office office suite, and Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface tablet lineup. As of 2016, it was the world's largest software maker by revenue, and one of the world's most valuable companies.  - The IBM System/360 introduced byte-addressable memory with 8-bit bytes, as opposed to bit-addressable or decimal digit-addressable or word-addressable memory, although its general purpose registers were 32 bits wide, and addresses were contained in the lower 24 bits of those addresses. Different models of System/360 had different internal data path widths; the IBM System/360 Model 30 (1965) implemented the 32-bit System/360 architecture, but had an 8 bit native path width, and performed 32-bit arithmetic 8 bits at a time.    After reading the paragraphs above, we are interested in knowing the entity with which 'commodore 1581' exhibits the relationship of 'manufacturer'. Find the answer from the choices below.  Choices: - commodore international  - freescale semiconductor  - ibm  - intel  - microsoft  - motorola
Answer:
commodore international