About My Computer Systems

I have had a variety of systems, some of which I still use. All hardware described below is internal to each box unless otherwise specified.

Spectrum Platform
Architecture Sinclair Spectrum  
Hardware Zilog Z80A, 3.54MHz, 48KB RAM, Z80 bus, tape recorder - for saving/loading software, RF television output. Spectrum
Operating Systems Specturm Basic Interpreter.  
Software Self written assembler/disassembler for coding in assembly language.  
Other Peripherals Interface I with microdrive mass storage device (120KB), Interface II with ROM catridge and joystick slots, Quickshot joysticks, Lightpen.  

Plus I've had other machines such as a Sinclair ZX81, a Memotech 520 (or something like that), and some other ones I can't even remember and used machines such as the BBC micro and Archimides, Oric, Dragon, early Apple's and Mac's.



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