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IBM 1401 Symbolic Programming System
The IBM 1401 Symbolic Programming System (SPS) was an assembler that was developed by Gary Mokotoff, IBM Applied Programming Department, for the IBM 1401 computer, the first of the IBM 1400 series. One source indicates that "This programming system was announced by IBM with the machine." SPS-1 could run on a low-end machine with 1.4K memory, SPS-2 required at least 4K memory. :SPS-1 punched one card for each input instruction in its first pass and this deck had to be read during pass 2. At the University of Chicago and many other locations, SPS-1 was replaced by assemblers taking advantage of the commonly available 4K memory configuration to pack the output of pass one into several instructions per card. Other assemblers were written which placed the pass one output into memory for small programs. As the 1400 series matured additional assemblers, programming languages and report generators became available, replacing SPS in most sites. See also * Autocoder * FARGO (programm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autocoder
Autocoder is any of a group of assembly language, assemblers for a number of IBM computers of the 1950s and 1960s. The first Autocoders appear to have been the earliest assemblers to provide a Macro (computer science), macro facility. Terminology Both ''autocoder'', and the unrelated ''autocode'', a term of the same era used in the UK for languages of a higher level, derive from the phrase ''automatic programming, automatic coding''. This referred generally to programs which eased the burden of producing the numeric machine language codes of programs. "Autocoding" is seen occasionally, and can refer to any kind of programming system. In some circles "autocoder" could be used generically to refer to what is now called a macro-assembler. History The first Autocoders were released in 1955 for the IBM 702, and in 1956 for the almost compatible IBM 705. They were designed by Roy Goldfinger who earlier had worked on New York University's (NYU) NYAP assembler. These machines were v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assembly Language
In computer programming, assembly language (or assembler language, or symbolic machine code), often referred to simply as Assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence between the instructions in the language and the architecture's machine code instructions. Assembly language usually has one statement per machine instruction (1:1), but constants, comments, assembler directives, symbolic labels of, e.g., memory locations, registers, and macros are generally also supported. The first assembly code in which a language is used to represent machine code instructions is found in Kathleen and Andrew Donald Booth's 1947 work, ''Coding for A.R.C.''. Assembly code is converted into executable machine code by a utility program referred to as an ''assembler''. The term "assembler" is generally attributed to Wilkes, Wheeler and Gill in their 1951 book ''The Preparation of Programs for an Electronic Digital Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gary Mokotoff
Gary Mokotoff (born April 26, 1937) is an author, lecturer, and Jewish genealogy researcher. Mokotoff is the publisher of '' AVOTAYNU, the International Review of Jewish Genealogy,'' and is the former President of the International Association of Jewish Genealogical Societies (IAJGS). He is the creator of the JewishGen's Jewish Genealogical Family Finder and the Jewish Genealogical People Finder. He co-authored the Daitch–Mokotoff Soundex system. Mokotoff is co-author of '' Where We Once Walked: A Guide to the Jewish Communities Destroyed in the Holocaust.'' Early life Mokotoff was born in New York City to parents Sylvia Mokotoff (née Friedberg) and Jack Mokotoff. He grew up on the Lower East Side of Manhattan, spending his teenage years in Queens. His grandparents were Jewish immigrants from Russia-Poland. Career Computer career Mokotoff joined the IBM Applied Programming Department in 1959, working on developing systems software for the yet-to-be-announced IBM 1401. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 1401
The IBM 1401 is a variable-wordlength decimal computer that was announced by IBM on October 5, 1959. The first member of the highly successful IBM 1400 series, it was aimed at replacing unit record equipment for processing data stored on punched cards and at providing peripheral services for larger computers. The 1401 is considered to be the Ford Model-T of the computer industry, because it was mass-produced and because of its sales volume. Over 12,000 units were produced and many were leased or resold after they were replaced with newer technology. The 1401 was withdrawn on February 8, 1971. History The 1401 project evolved from an IBM project named World Wide Accounting Machine (WWAM), which in turn was a reaction to the success of Bull Gamma 3 (fr). The 1401 was operated as an independent system, in conjunction with IBM punched card equipment, or as auxiliary equipment to IBM 700 or 7000 series systems. Monthly rental for 1401 configurations started at US$2,500 (wort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 1400 Series
The IBM 1400 series were second-generation (transistor) mid-range business decimal computers that IBM marketed in the early 1960s. The computers were offered to replace tabulating machines like the IBM 407. The 1400-series machines stored information in magnetic cores as variable-length character strings separated on the left by a special bit, called a "wordmark," and on the right by a "record mark." Arithmetic was performed digit-by-digit. Input and output support included punched card, magnetic tape, and high-speed line printers. Disk storage was also available. Many members of the series could be used as independent systems, as extensions to IBM punched-card equipment, or as auxiliary equipment to other computer systems. Some, however, were intended for specific applications or were economical only as independent systems. History The 1401, announced on October 5, 1959, was the first member of the IBM 1400 series. It was the first computer to deploy over 10,000 units. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FARGO (programming Language)
FARGO ( fourteen-o-one automatic report generation operation) was the predecessor to the RPG programming language. FARGO was more of a utility program than a programming language, whereas RPG had a program generation process that produced an executable object. A transitional tool The idea behind FARGO was to facilitate ease of transition for IBM 407 Accounting Machine technicians to the new IBM 1400 series of computers. The 1400 series had two assemblers; Symbolic Programming System (SPS) and Autocoder (a more advanced assembler which required more memory than SPS). These represented a significant paradigm shift and learning curve for the technicians who were accustomed to wiring a control panel to direct input, output, control and counter operations (add, subtract). Multiplication and division operations were possible but their practicality was limited. Tabulator machine operations were directed by impulses emitted in a machine cycle; hence, FARGO emulated the notion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Van Vleck
Tom Van Vleck is an American computer software engineer. Life and work Van Vleck graduated from MIT in 1965 with a BS in Mathematics. He worked on CTSS at MIT, and co-authored its first email program with Noel Morris. In 1965, he joined Project MAC, the predecessor of the MIT Computer Science and Artificial Intelligence Laboratory.''A Marriage of Convenience: THE FOUNDING OF THE MIT ARTIFICIAL INTELLIGENCE LABORATORY'' Chiou, Stefanie; et al. (2001) He worked on the development of for more than 16 years at and at |
Assembly Languages
In computer programming, assembly language (or assembler language, or symbolic machine code), often referred to simply as Assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence between the instructions in the language and the architecture's machine code instructions. Assembly language usually has one statement per machine instruction (1:1), but constants, comments, assembler directives, symbolic labels of, e.g., memory locations, registers, and macros are generally also supported. The first assembly code in which a language is used to represent machine code instructions is found in Kathleen and Andrew Donald Booth's 1947 work, ''Coding for A.R.C.''. Assembly code is converted into executable machine code by a utility program referred to as an ''assembler''. The term "assembler" is generally attributed to Wilkes, Wheeler and Gill in their 1951 book ''The Preparation of Programs for an Electronic Digital Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
