Short answers, pulled from the story.
The Amstrad CPC 464 was introduced in June 1984 with an initial suggested retail price of £249.00. This all-in-one computer combined the machine, keyboard, and data storage device into a single unit sold with a dedicated monitor.
The Amstrad CPC 6128 released on the 13th of June 1985 features 128 kilobytes of RAM and an internal 3-inch floppy disk drive. It is compatible with the CP/M+ operating system and was the first Amstrad product sold in the United States.
The Amstrad CPC Plus range failed commercially because many viewed it as outdated despite enhancements like 16 hardware sprites and a 4096 colour palette. The system was based on an 8-bit CPU and failed to attract customers moving towards systems such as the Amiga and Mega Drive.
The Amstrad CPC 472 circumvented the Spanish import tax by adding an 8 kilobyte memory chip to increase total memory to 72 kilobytes. This modification allowed the machine to avoid the 15 000 pesetas tax applied to computers with 64 kilobytes or less of RAM.
The Amstrad CPC series uses a Zilog Z80 processor clocked at 4 megahertz with an effective clock rate of approximately 3.3 megahertz. This reduction occurs because CPU memory access is constrained to occur on microsecond boundaries to prevent video corruption.
The Roland character in Amstrad games was named after Roland Perry, one of the lead designers of the original CPC range. The character served as a mascot for games published by Amsoft, though the design varied immensely across different titles.