To get the exact page you need on Spishu.ru or other sites, use these search terms:
If you are looking for specific answers, they will likely fall under these main chapters studied in the 7th grade:
Basic coding and introductory logic.
Sites like Spishu.ru and similar "GDZ" (готовые домашние задания) portals host digital keys for workbooks. To find the correct one, search for the author's name alongside the workbook title:
Hardware components and universal data processing. informatika 7 klass rabochaia tetrad otvety onlain spishu.ru
Continuous vs. discrete signals, types of information (visual, audio, etc.).
ГДЗ информатика 7 класс Босова рабочая тетрадь (for Bosova ). To get the exact page you need on Spishu
Информатика» для 7 класса (УМК Босова Л.Л. и др. 5-9 кл.)