Description: HyperCard was a software application released by Apple in 1987 that allowed users to create their own hypertextual information stacks to organize data like a database and develop custom applications. It pioneered many hypermedia concepts.
Type: software
Description: SQL Fiddle is an online SQL database testing tool that allows users to easily create, share, test, and run SQL queries. It supports various databases like MySQL, PostgreSQL, Oracle, SQL Server, etc.
Type: software