1. Processor: The Microbee 128K was powered by a Zilog Z80 CPU, running at 2 MHz or 3.29 MHz, depending on the model. The Z80 was a popular 8-bit processor used in many computers of the time.
   
2. Memory: As the name suggests, the Microbee 128K came with 128 KB of RAM, which was a significant upgrade from earlier models that typically had 16 KB or 32 KB of memory. This made it more capable of running advanced software and applications.
   
3. Storage: The computer typically used cassette tapes for storage, though later models and expansions allowed for floppy disk drives. This was common for home computers in the early to mid-1980s.
   
4. Display: The Microbee 128K featured a built-in monochrome monitor with a resolution of 256 x 192 pixels. The display was green on black, which was typical for computers of that era.
   
5. Operating System: It ran on Microbee's proprietary operating system, which was based on CP/M (Control Program for Microcomputers), a popular OS for 8-bit computers at the time. This made it compatible with a wide range of software.
   
6. Keyboard: The keyboard was built into the unit, and it was known for being relatively sturdy and comfortable to use compared to some other home computers of the era.
   
7. Expandability: The Microbee 128K was designed to be expandable, with ports for additional peripherals and upgrades. This made it a versatile machine for both home and educational use.
   
   

Quote:The Microbee is a classic Australian computer from the late 1970s and early 1980s. Here are some interesting facts about it:

1. Design and development: The Microbee was designed by Richard Tipler, an electronics engineer who founded Nova Computer Systems in Melbourne, Australia. The company developed the Microbee as a more affordable alternative to commercial computers at the time.
   
2. 128k processor: The Microbee is powered by an 8-bit Zilog Z80A microprocessor running at 1 MHz, with 128 kilobytes of RAM (expandable to 256 KB). This was relatively fast and powerful for its era.
   
3. Expansion options: The Microbee had several expansion cards available, including a floppy disk drive, cassette interface, serial terminal, and a graphics board. These allowed users to expand the computer's capabilities and connect it to peripherals like printers and modems.
   
4. Keyboard and monitor: The Microbee came with a keyboard and a 12-inch CRT (cathode ray tube) display. Later models included an optional joystick and a touch-sensitive graphics tablet for drawing and painting.
   
5. Software availability: Although the Microbee didn't have a large library of software initially, it gained popularity in Australia due to its affordability and expandability. Many local software developers created programs specifically for the system, including word processors, spreadsheets, and games.
   
6. Retro gaming and computing: The Microbee has become a nostalgic favorite among retro computer enthusiasts. It's still possible to find original hardware and software for sale online or at retro computer stores.
   

Some notable features of the Microbee include:

• Its compact size, making it easy to fit in small spaces.
  
• Its expandability via modular expansion cards.
  
• Its relatively low cost compared to commercial computers from the same era.
  

The Microbee is an interesting piece of Australian computing history and a testament to the ingenuity of Richard Tipler and his team at Nova Computer Systems.