Commodore 1541 disk drive
Technical specifications:
- MOS6502 CPU running at 1 MHz
- two MOS6522 I/O chips
- 16 kB ROM
- 2 kB RAM
Diskette format:
- single-sided 5,25"
- 35 tracks
- 17 to 21 sectors per track (depending on track)
- 256 bytes per block
- 683 blocks in total, 644 available for use