IBM System/370 Model 145

Model 145145370/145IBM 3145
The IBM System/370 Model 145 was announced September 23, 1970, three months after the 155 and 165 models.wikipedia
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IBM System/370 Model 165

165370/165Model 165
The IBM System/370 Model 145 was announced September 23, 1970, three months after the 155 and 165 models.
Three months later a fourth IBM System/370, the Model 145, was announced.

IBM System/370 Model 155

155Model 155370/155
The IBM System/370 Model 145 was announced September 23, 1970, three months after the 155 and 165 models.
Three months later a fourth IBM System/370, the Model 145, was announced.

IBM System/370

System/370S/370IBM/370
It was the fourth member of the IBM System/370 line of computers, and was the first IBM computer to use semiconductor memory for its main memory instead of magnetic core memory.
On September 23, 1970, IBM announced the Model 145, a third model of the System/370, which was the first model to feature semiconductor main memory made from monolithic integrated circuits and was scheduled for delivery in the late summer of 1971.

List of IBM products

IBM 5153See products listingbusiness intelligence and performance management products

Semiconductor memory

memory chipMOS memorydigital memory
It was the fourth member of the IBM System/370 line of computers, and was the first IBM computer to use semiconductor memory for its main memory instead of magnetic core memory.

Magnetic-core memory

core memorymagnetic core memoryferrite core memory
It was the fourth member of the IBM System/370 line of computers, and was the first IBM computer to use semiconductor memory for its main memory instead of magnetic core memory.

IBM System/360 Model 40

Model 40360/4040
It was described as being five times faster than the IBM System/360 Model 40.

VM (operating system)

VM/CMSVMVM/370
Upon gaining virtual memory capability via a microcode update, the 145 could now support the VMF (Virtual Machine Facility) and VM/CMS, a time-sharing system.

Conversational Monitor System

CMSVM/CMSCambridge Monitor System
Upon gaining virtual memory capability via a microcode update, the 145 could now support the VMF (Virtual Machine Facility) and VM/CMS, a time-sharing system.

Time-sharing

timesharingtime sharingtime-sharing system
Upon gaining virtual memory capability via a microcode update, the 145 could now support the VMF (Virtual Machine Facility) and VM/CMS, a time-sharing system.

IBM

International Business MachinesIBM CorporationInternational Business Machines Corporation

IBM System/370 Model 148

The 148 and 138, both of which were withdrawn November 1, 1983, were marketed as followups for those wishing to upgrade, respectively, their 370/145 and 370/135 systems.