Editing MicroBee (section)

==Components==
The original main board consisted of:

* [[Zilog Z80|Z80]] CPU
* Z80 [[Programmed input–output|PIO]]
* [[Motorola 6545|6545]] [[CRT controller]]
* 2 KB Screen [[Random-access memory|RAM]]
* 2 KB Character [[Read-only memory|ROM]] (128 characters)
* 2 KB Programmable Character Graphics (PCG) RAM (128 characters)
* Keyboard
* Speaker
* Tape Input/Output
* Video Out
* [[Serial Port]]
* User [[Parallel Port]]
* Power Connector

The original coreboards consisted of:

* Either 32KB capacity or 56KB capacity 6116 battery backed Non-volatile RAM 
* Either 16KB BASIC ROM or 4KB BOOT ROM
* 50 way System Expansion port
* Provision for 8KB Expansion ROM on 32KB Max capacity version

A floppy disk drive unit and [[S-100 bus]] expansion unit were available. They connected to a microbee by a 50 way [[ribbon cable]] to the System Expansion port.

The microbee had two networking options - BeeNet and StarNet.  The BeeNet was a low cost low speed LAN (Local Area Network) for 16-32K ROM Models and the StarNet was for the 64K and  larger DRAM models.

The BeeNet uses a [[bus topology]] that uses [[Synchronous serial communication|synchronous]] serial transfers.  The StarNet uses a single [[star topology]] using dedicated 8-bit parallel data bus connections between the central hub and its remote spokes.