floppy disk | Programmable logic controller | Hard disk drive | hard disk drive | Golden Disk Awards | Universal Disk Format | disk | Floppy disk | California State Controller | Alderson disk | Hard Disk 20SC | Hard Disk 20 | ESP-Disk | Double-sided disk | disk storage | Session Border Controller | Radio Network Controller | programmable logic controller | Poincaré disk model | Paddle (game controller) | paddle (game controller) | Motor controller | motor controller | Motion controller | MIDI controller | Macintosh External Disk Drive | Hoist controller | Flight controller | Disk storage | Disk partitioning |
# Low-level formatting (i.e., closest to the hardware) marks the surfaces of the disks with markers indicating the start of a recording block (typically today called sector markers) and other information like block CRC to be used later, in normal operations, by the disk controller to read or write data.
Chipset: In addition to the Z80 and 6502, the system also included Intel 8255A PIO, Intel 8251A USART, Intel 8214 Programmable Interrupt Controller, Motorola 6845 CRT controller, Western Digital 1793 floppy disk controller, and OKI MSM5832 real time clock.