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MAPPER (Software) MAPPER: 4GL [14] Programming Language for UNISYS Systems: PLUS: Master File Directory: MFD: SX1100: SX1100: UNIX on Exec8, OS1100 and OS2200 CS1100: CS1100: Communications Simulator Traffic Control Language: TCL
This storage allocation method remained on the 1100 series machines long after drums had been replaced by disks. The track storage units were checkboarded so that, with precise computation of the program's processing time, one could create software with processing time per unit of Fastrand blocks that resulted in a program running in ...
An upgraded 1106 was called the UNIVAC 1100/10. In this new naming convention, the final digit represented the number of CPUs or CAUs in the system, so that, for example, a two-processor 1100/10 system was designated an 1100/12. An upgraded 1108 was called the UNIVAC 1100/20. An upgraded 1110 was released as the UNIVAC 1100/40.
MAPPER Systems, now known as Business Information Server, BIS, is a fourth-generation programming language originally from Sperry Univac.Now owned by Unisys Corporation. Mapper originated in the 1970s [1] based on some work in the 1960s, [2] It has been functionally enhanced and kept curren
The 1107 was the first 1100-series machine introduced under the Sperry Corporation name. Like its predecessors, it had support for multiple CPUs; initially only two, but later up to four. It continued the naming convention introduced with the 1100/10, where the last digit represented the number of CPUs (thus, a four CPU system would be an 1100/64).
The name OS 1100 was retained until 1988 with the introduction of the Sperry 2200 Series as a follow on to the 1100 Series when its name was changed to OS 2200. Since that time, the 2200 Series became the Unisys ClearPath IX Series and then the Unisys ClearPath Dorado Series, but the operating system retained the OS 2200 name.
Also see UNIVAC 1100/2200 series. The 1100 Series has used a 36-bit word with 6-bit characters since 1962. 36-bit computing was driven by a desire to process 10-digit positive and negative numbers. Also the military needed to be able to calculate accurate trajectories, design bridges, and perform other engineering and scientific calculations ...
Even drivers executing in user mode can crash a system if the device is erroneously programmed. These factors make it more difficult and dangerous to diagnose problems. [3] The task of writing drivers thus usually falls to software engineers or computer engineers who work for hardware-development companies. This is because they have better ...