Notes-Joe

Micro Computers and Information systems notes http://en.wikipedia.org/wiki/Microcomputer A microcomputer is a [|computer] with a [|microprocessor] as its [|central processing unit]. Another general characteristic of these computers is that they occupy physically small amounts of space when compared to [|mainframe] and [|minicomputers]. Many microcomputers (when equipped with a keyboard and screen for input and output) are also [|personal computers] (in the generic sense). The abbreviation "micro" was common during the 1970s and 1980s, but has now fallen out of common usage. Although they contained no microprocessors but were built around TTL logic, [|Hewlett Packard] Calculators as far back as 1968 had various levels of programmability such that they could be called microcomputers. The HP 9100B (1968) had rudimentary conditional (IF) statements, statement line numbers, Jump statements ( [|Go to] ), registers that could be used as variables, and primitive subroutines. The programming language resembled [|Assembly language] in many ways. Later models incrementally added more features, including the [|BASIC] programming language The [|Datapoint 2200], made by [|CTC] in 1970, is perhaps the best candidate for the title of "first microcomputer". While it contains no microprocessor, http://www.webopedia.com/TERM/M/microcomputer.html The term //microcomputer// is generally synonymous with [|personal computer (PC)], or a [|computer] that depends on a [|microprocessor]. Microcomputers are designed to be used by individuals, whether in the form of PCs, [|workstations] or [|notebook computers]. A microcomputer contains a [|central processing unit (CPU)] on a [|microchip] (the microprocessor), a memory system (typically [|read-only memory] and [|random access memory] ), a [|bus] system and [|I/O] [|ports], typically housed in a [|motherboard]. http://en.wikipedia.org/wiki/Information_system In a general sense, the term **information system** (IS) refers to a [|system] of persons, [|data] records and activities that process the data and [|information] in an organization, and it includes the organization's manual and automated processes. In a narrow sense, the term //information system// (or **computer-based information system**) refers to the specific [|application software] that is used to store data records in a computer system and automates some of the information-processing activities of the organization. Computer-based information systems are in the field of [|information technology]. The discipline of [|Business process modeling] describes the [|business processes] supported by information systems. From prior studies and experiences with information systems there are at least four classes of information systems: The term information system (BCIS, IS) sometimes refers to a system of persons, data records and activities that process the data and information in an organization, and it includes the organization's manual and automated processes. ... [|en.wikipedia.org/wiki/Information_System]
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 * [|Transaction processing systems]
 * [|Management information systems]
 * [|Decision support systems]
 * [|Expert systems]
 * [|Business intelligence]