Acer — тайваньская компания по производству компьютерной техники и электроники. Компания занимает 487 место в Fortune Global 500 (2011 год) Источник: https://ru.wikipedia.org/wiki/Acer

Dell Inc. is an American privately owned multinational computer technology company based in Round Rock, Texas, United States, that develops, sells, repairs, and supports computers and services.

HP Inc. (also known simply as HP and stylized as hp) is an American technology company, created on November 1, 2015 as one of two successors of Hewlett-Packard, the other being Hewlett Packard Enterprise. It develops and provides hardware, such as personal computers and printers. It is the legal successor of the old Hewlett-Packard. The split was structured so that Hewlett-Packard changed its name to HP Inc. and spun off Hewlett Packard Enterprise as a new publicly traded company. HP Inc. retains Hewlett-Packard's stock price history, as well as its NYSE ticker symbol of HPQ (whereas Hewlett Packard Enterprise uses a new ticker, HPE). HP is now focusing on consumers who improve their computers frequently and spend more money on games. They released the gamer-centric Omen line of laptops and desktops targeted at mid-range consumers with an Omen X line to debut later in 2016.

Konica Minolta, Inc. is a Japanese technology company headquartered in Marunouchi, Chiyoda, Tokyo, with offices in 49 countries worldwide.[1] The company manufactures business and industrial imaging products, including copiers, laser printers, multi-functional peripherals (MFPs) and digital print systems for the production printing market. Konica Minolta's Managed Print Service (MPS) is called Optimised Print Services. The company also makes optical devices, including lenses and LCD film; medical and graphic imaging products, such as X-ray image processing systems, colour proofing systems, and X-ray film; photometers, 3-D digitizers, and other sensing products; and textile printers. Source: https://en.wikipedia.org/wiki/Konica_Minolta