Prologica CP-300
The CP 300 was a Brazilian home computer produced by the Prologica company in 1983. It was compatible with the TRS-80 Model III, and was produced as a cheaper alternative to the CP 500. The keyboard had small gum-like keys and the power supply was external. The machine had 64 KByte of memory, an RF output, a video output and a cassestte interface. The computer could support up to four external 5.25" floppy disk drives.
CPU View - Zilog Z80 Family
The Z80 quickly became popular in the personal computer market, with many early personal computers, such as the TRS-80 and Sinclair ZX80, using the Z80 as their central processing unit (CPU). It was also widely used in home computers, such as the MSX range, SORD, and the Amstrad CPC, as well as in many arcade games. Additionally, it was also used in other applications such as industrial control systems, and embedded systems. The Z80 was widely used until the mid-1980s, when it was gradually replaced by newer microprocessors such as the Intel 80286 and the Motorola 68000.
The Z80 microprocessor was developed by Zilog, a company founded by Federico Faggin in 1974. The Z80 was released in July 1976, as a successor to the Intel 8080. It was designed to be fully compatible with the 8080, but also included new features such as an improved instruction set, more powerful interrupts, and a more sophisticated memory management system.
The Z80 quickly became popular in the personal computer
ROM: 16kB Sound Chip none Sound Internal Beeper Display Chip none Display 64x16, 32x16 text
128x48 Semi-Graphics Best Text 64x16 Best Color none Graphics 128x48 semi graphics Sprites none System OS TRS BASIC Level II Storage External Tape, ROM cartridges