MicroBee Home Computers
This machine was produced in 1985. A new Mainboard was introduced for the microbee, and the machines were rebranded as the Premium Series model. The new board had 8kB of screen RAM, 8kB of attribute RAM, 8kB of color RAM, and up to 32kB of Programmable Character RAM. The base model came with 16kB of PCG RAM, allwoing for a display of 512x256 in limited colors
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
RAM max: 32kB
ROM: 16kB
VRAM: 48kB Sound Chip none Sound Mono sound, 2 octaves Display Chip MW6545 User Programmable VDU Display 512x256 Best Text 64x16 Graphics 512x256 Sprites none System OS DGOS/MicroWorld BASIC Storage Networked Original Price A$399