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Rui F Ribeiro
  • Member for 6 years, 3 months
  • Last seen more than a month ago
72 votes
Accepted

How were the first ZX Spectrum games written?

19 votes

Why did the IBM PC need a sound card?

16 votes

Copying tapes "back in the day"

11 votes
Accepted

Zilog Z80 estimated time discrepancy

11 votes
Accepted

Did the Timex Sinclair 2068 and the Sinclair ZX Interface 2 use totally different hardware and software techniques?

8 votes

What caused the demise of BASIC/BASICA in the late 1980's?

7 votes

Origin of Dongles

7 votes

How can a Z80 assembly program find out its own memory address?

6 votes

Why did tactile-feedback keyboards lose popularity?

4 votes

How did debugging software run without memory protection?

4 votes

Back in the late 1980s, how was commercial software for 8-bit home computers developed?

3 votes

CPU speedup breaking sound compatibility

2 votes

Spectrum clones 512x192 mode usable text resolution

2 votes

Timex 2048 RAM contention ULA/video output

2 votes

What makes accurate emulation of old systems a difficult task?

2 votes

ZX Spectrum +2 not saving

2 votes

Formatting a 720K floppy disk over USB fails with Windows 10

1 vote

Why did some Spectrum games need LOAD "" CODE?

1 vote

Is the SimH emulator available on macOS?

-1 votes

What were the real competitors to the early IBM PC?