The first PC clone sold by Philips. This was essentially a rebadged Corona PC (known from the IBM law suit). This PC has gained fame as the "slowest PC ever", with a Norton CI of 0.9. Since this PC pre-dated the PC/XT, Philips sold a hard disk controller for it that was completely incompatible with any other PC hard disk controller, built entirely with plain TTL chips (7400 series), hard wired for one drive type. Writing a Minix device driver for this thing was interesting. It didn't do interrupts. You had to poll in a loop for I/O completion, which, of course, you don't want to do in a multi-tasking OS, so I had to estimate the completion time, set a timer interrupt, then busy wait for the last bit. Having only a single floppy drive to compile the Minix kernel didn't help...
Philips bought this from Corona some time around 1984 (probably just after IBM forced Corona by law suit to stop selling them...). By 1986, Philips was stuck with a warehouse full of these and was dumping them, which is how I got it very cheap as a Philips employee.
My first PC.
Date: 1983 (Corona PC), 1984 (Philips P3100)
CPU: 8088 @ 4.77 MHz