What kind of processor does this desktop PC have and is it suitable for multitasking?

The desktop PC has an Intel Core i7-9700 processor, which is a 64-bit 8-core processor, making it suitable for multitasking.

Does this Lenovo ThinkCentre come with any peripherals such as a keyboard or mouse?

Yes, this Lenovo ThinkCentre comes with a USB keyboard and a USB mouse.

Yes, this computer comes with Windows 11 Pro 64-bit pre-installed.

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Lenovo Business Desktop ThinkCentre M720s-SFF Intel Core i7-9700 16GB DDR4 512GB SSD Intel UHD Graphics 630 Windows 11 Pro 64-bit