PreComputer 1000 is an educational handheld console released by Vtech in 1988. It's successor, PreComputer 2000 has backward compatibility and can use all of the cartridges of PreComputer 1000.
At the top of the console there is an LCD screen with 21x1 characters capacity and an array of push buttons that allows the user to select the desired functionality. On the bottom there is a keyboard with keys similar to a desktop keyboard. The most interesting thing about this console is the fact that it is powered by a 4MHz Z80 processor, which is the same CPU that someone can find in a desktop computer in the early 80's, which perhaps explains why the designers decided to give this child's toy a fairly capable software development environment. The console box has a detailed manual.
The purpose of this console is to educate young teenagers and make them more familiar with the upcoming digital revolution of that era.