First display screen equipment arrives
In the early 70’s, the first IBM 3270 display screen equipment appears on the market. It can be connected to the central processor through local control units via coaxial cable or remote units connected with telecommunications networks (Telecom public networks). Together, the Data Base Management Systems (VSAM, DL / 1, DB2, etc.), which allow access to files on magnetic disks, and specific programming methods for video screens (CICS, BMS, etc.) make it possible to retrieve stored information in real time, the updating and entry of new items in the archives directly, without the need for intermediate steps (punching of cards, recording on floppy disks, or other).
The potential of such systems is immediately perceived at the Company and the first display screen equipment is installed at the headquarters immediately. It is mainly used to find all the new possibilities of use and procedural innovation that can be introduced in the Company.