Mary S. Moore
At present, facsimilees are used as business communications devices in offices via the public switched telephone network. The public telephone network is the most widely avail able throughout the world, and about one million telephone network facsimiles are being used, largely in Japan, the United States, and Europe. The public data network is limited in terms of service area, there are relatively few new subscribers to it, and time will be required for the expansion of the ISDN. For the present, it is likely that the G3 facsimile will continue to occupy the main current of expansion and development.
In order for the use of home facsimiles to expand, it will be necessary to bring the various home information systems into conformity with facsimiles, not for message transmission, but for such applications as videotex, television program recording, TV multiple, and facsimile broadcast reception. In these applications, it will probably be desirable to produce low-cost small-size apparatus capable of reproducing halftones and color.
