A specialized book from 1986 that elaborates on terms related to communication technology. - Title: Data Communication Technology Terms - Publication Year: 1986 - Table of Contents: Explanations of terms related to communication technology - Publisher: CQ Publishing - Special Feature: Advertising feature Thank you for looking. Please check the attached images for the contents. If anything is difficult to see, please contact me, and I will retake photos or make other adjustments, so please let me know. This item has been stored at home for a long time, so there may be discoloration due to age. We ask for your understanding before purchasing. Please note that this is a casual inspection. Although I have checked it, please be aware that there may be some writing. Perhaps due to long-term storage at home, the book is difficult to open properly when opened. It may be difficult to see in the images, but I have also included images of it when opened. Please note that there is a possibility of changing to YuYu Mercari.