My first one was such work of art:
512k RAM.
CPU: NEC V40 (80188-compatible).
Two floppy drives. No HD!
XT-style keyboard (82 keys).
Integrated CGA-compatible video. Allegedly can output to TV or monitor. (You would never find a cable to perform the task)
SPEED 4.77 / 8 MHz
GRAPHIC MODES CGA graphic modes : 320 x 200 / 640 x 200, black and white only! (great improvement as normal was green over black those days)
I/O PORTS Centronics, RGB monitor and TV, RS232, Mouse, Audio, Floppy disk, Expansion connector
BUILT IN MEDIA 2 x 3.5'' 720 KB FDD
OS MS DOS
Olivetti Prodest PC1 - 1988
I remember I later got a 56k modem, as Netscape browser was invented, because of that I had to get a computer that would allow to assemble it internally, that new one had a 20MB HD, it was in 1995, can't remember why I would need a modem those days...
I remembered! I needed a modem because it was a FAX-Modem, and that would turn the computer into a fax machine, so I could start to get rid of the Telex machine!