Hello, as a former Olivetti Germany technician in the 2nd half of the 1980's and computer design interested person I would definitively say: YES
The ETV-250 is a CP/M based computer with integrated typewriter. It's one of the ETV-series which I will list as follows:
ETV 240, same as ETV 250 but only single floppy drive
ETV 250, integrated CP/M and daisywheel tyewriter in one chassis, with 80x25 green on black CRT monitor. It has not only one Z80-CPU, but some more, one for the CP/M computer, one for the keyboard, one or two for the printer. The printer uses the same mechanics as ET-111, ET-112, ET-115, ET-116 profesional daisywheel typewriters. CP/M operation system and Olitext wordprocessing software is booted form 3,5 inch drive. There were als diskettes with CP/M to boot on command prompt, conatining BASIC programming language, games, visicalc, databases and many more
ETV 300, external box in the size of a desktop PC (about the same size as for example Olivetti M24, Atari PC3, etc.), Z80 CPU, 1 or 2 5,25 floppy drives (same Apls mechanics as Commodore VC 1541, Apple IIc and some Apple II external drives), extension slots. Green on black monitor (similar looking to the monochrome monitors for Olivetti M24) The ETV 300 was connected through serial interface to a Olivetti daisywheel typewriter of the ET-221, ET-225 series. The typeweiter served to the ETV-300 as printer and keyboard. ETV-300 was running under CP/M, Olitext and there were boot diskettes with BASIC, games, visicalc, databases, etc. ETV 300 was also capable to read diskettes from DU-251 floppy drive (external floppy drive for ET-225 typewriter) and import text documents into Olitext.
ETV 350 was shrinked version of ETV 300, fully compatible with ETV-240/250 as it also was using 3,5 inch floppys. The ETV 350 was connected to ET-111, ET-112, ET-115, ET-116 through serial interface and extended them from a typewriter to a screen based word processor.
ETV 260 was fully integrated using the daisywheel printer of ET-111, ET-112, ET-115, ET-116. In the chassis, under the printing mechanics, a full version of Olivetti M-19 personal computer was integrated, 8088 CPU at 4,77 MHz, up to 640 kB RAM, two 3,5 ich floppy drives with 720 kB or one floppy and one 20 MB harddisk (AT-Bus or SCSI, I don't remember anymore). ETV-260 was running MS-DOS version 3.20 and came with MS-DOS version of Olitext which was much more advanced to the older CP/M versions. Keybard was external and same like M19. Monitor was green on black. Introduced in 1986/87. There were also rebranded ETV 260 from Telenorma (Germany) on the market.
ETV 2700 was modern version of ETV-260, based on ET-2xxx typewriter mechanics, NEC-V40 CPU and 256 up to 1 MB RAM, also running MS-DOS and newer version of Olitext. Monitor was back letters on white backround (similar to Atari SM-124 monitor). It had two 3,5 inch floppy drives or one floppy and one harddisk. Introduced in 1989.
ETV 2900 was MS-DOS-PC integrated into a monitor similar to ETV 2700 and fully compatible to ETV 2700. The ETV 2900 was connected through serial interface to ET-2xxx series typewriters and could extend them to a full word processor and MS-DOS compatibe PC.
ETV 240/250/260/2700/2900 all came with an arm which could be fixed by screws to the desktop (table) and carried the monitor. So it was very easy to place the monitor over of the ETV creating a very ergonomic workplace. ETV 240 up to ETV-350 CP/M based machines were designed by Mario Bellini and his team, so they had very nice design. Probably ETV-260 also was designed by Bellini, but for ETV-2xxx I don't know.
The ETV series of wordprocessor systems was the high end series of typewriters at it's time. The ETV 260 and 2700 were one of the fastest daisywheel printers on the market. With some fun software we even could print graphics onto it, just using the dot "." like a one dot matrix printer...
(Currently I am trying to get a ETV-2700.)