The System/36, short form /36, is a computer model of the company IBM. The system is a multi-user and a Multithreadsystem.

History

On the basis of the Systems/34 /36 one developed. She was presented in May 1983. There were models for small companies (also called department computers so mentioned) up to models of larger stages of development. The simple operation and the times too at that time revolutionary reliability distinguished /36.

Models/hardware

/36 as model 5360 and 5362 one brought out. The models 5360 and 5362 possessed up to 7 MT main storage, up to 1,4 GB disk memories and a diskette magazine drive assembly for 20 disks with 8 " diameters (10 disks each in a magazine) as well as a single supply for 3 disks. The 14 " magnetic disks with a weight of some dozen of kilograms had for example a capacity from 320 MT to a price in the middle of the 80's of approx. 30,000, - DM. The difference between the 5360 and the 5362 layer in an extended housing, which offered larger connection types for magnetic disks.

Later followed smaller 5363, which one could attach to which one locally up to 28 units. This model was renamed later and than AS/Entry 5363 driven out around a certain transition to the successor AS/400 to represent.

The address area amounted to 16Bit.

The S/36 had a tax console, at which error messages of the operating system (SRC=System so mentioned Reference code) could be read off and answered if necessary. The moreover one here special functions could be implemented, as well as be accomplished the IPL (initial Program load).

The terminals were connected by twin axial cables. Here maximally 7 devices in a strand could be attached, which were serially successively switched. In addition each terminal had an entrance and an exit. The terminal had to be scheduled. At a CONTROLLER one could attach 6 of these lines. Maximally 72 local of jobs could be attached. Telecommunications adapters made possible for a data link line the teleprocessing in connection with the 5493-Steuereinheiten and.

When the era of the PCs began, connection maps for these were offered, which made the 5250-Emulation available in such a way specified.

For the faster data protection starting from 1985 magnetic tape cassettes and - devices were offered, which reached from capacities from little dozen to some hundred MT.

Operating system and programming

The operating system SSP had a general menu prompting, which made /36 in the comparison to /38 substantially more user-friendly. So one could select instructions from a menu structure or select parameters by function keys, which did not facilitate so experienced administrators complicated functions. The System/36 over OCL (operating control LANGUAGE) was programmed as Steuersprache and COBOL or RPG as programming language. For this the aids SEU (SOURCE entry utility) and SDA (screen Design Aid) were available. The moreover one one than POP (Programmer and operator Productivity Aid) was offered designated assistance, that made it possible to call all functions over menus.

In practice it was to be accomplished more frequently necessarily a Compress, similarly the today's Defragmentieren with the Windows PCs. Here free ranges of the non removable disk become were combined into larger blocks, so that the operating system could have again this place, since data which can be written again could be written only into suitable blocks. This often took several hours.

Separation

The high maintenance fees and the limited expandabilities of the S/36 led then to the development of the successor AS/400 in the year 1988. The System/36 kept running however still some years in predominantly medium-size enterprises and even still during operation the turn of the century got over.

Articles in category "System/S36"

We found here 4 articles.

Related Websites

We found here 4 related websites.

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• RMAA - Information is Power
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