GL2 History
General
GL2 was the operating system used on the IRIS line of Motorola 68000 based terminals and workstations. It was replaced by 4D1 / IRIX when the MIPS based IRIS 4D systems were introduced.
Versioning of the GL2 operating systems is a bit peculiar. An example of a GL2 version is GL2-W3.6. The first letter of the number is either W (Workstation) or T (Terminal) and denotes for which kind of system the release is intended.
The release number itself consists of two parts. The major number indicates on which platform the GL2 is intended to run, the lower number is a subsequent release number.
Release 1.x
Introduction
Currently nothing is known about a 1.x release of the operating system for IRIS terminals and workstations.
Release 2.x
Introduction
Version 2 of the GL2 operating system was intended to run on the IRIS 1000 and IRIS 2000 workstations and terminals.
The following list is not complete:
2.3
| Full Name | GL-W2.3 GL-T2.3 |
| Release Date | 05/1986 |
| Supported Hardware | |
| Major Changes | Last release for IRIS 1000 |
2.3.1
| Full Name | GL-W2.3.1 GL-T2.3.1 |
| Release Date | Spring/1986 |
| Supported Hardware | |
| Major Changes |
|
2.4
| Full Name | GL-W2.4 GL-T2.4 |
| Release Date | 05/1986 |
| Supported Hardware | |
| Major Changes | EFS (Extent File System) System V Shared Memory |
2.5
| Full Name | GL-W2.5 GL-T2.5 |
| Release Date | 12/1986 |
| Supported Hardware | |
| Major Changes |
Release 3.x
Introduction
Version 3 of the GL2 operating system was intended to run on the IRIS 2000 Turbo and IRIS 3000 workstations and terminals.
The following list is not complete:
3.3.1
| Full Name | GL-W3.3.1 GL-T3.3.1 |
| Release Date | Spring/1986 |
| Supported Hardware | |
| Major Changes |
3.4
| Full Name | GL-W3.4 GL-T3.4 |
| Release Date | 05/1986 |
| Supported Hardware | |
| Major Changes | System V Shared Memory |
3.5
| Full Name | GL-W3.5 GL-T3.5 |
| Release Date | 12/1986 |
| Supported Hardware | |
| Major Changes | Complete TCP/IP implementation (4.3 BSD) New electronic mail implementation Network File System (NFS) option including YP |
3.6
| Full Name | GL-W3.6 GL-T3.6 |
| Release Date | Early 1987 |
| Supported Hardware | |
| Major Changes |