Does it not having a Dedicated Graphics card mean it doesn't display images on a monitor?

The lack of a dedicated graphics card does not mean it cannot display images on a monitor. The HP Desktop Computer PC can still display images using integrated graphics.

Questions & Answers: Refurbished: HP EliteDesk 800 G3 Computer Desktop PC, Intel Core i5-6500, 16GB RAM, 512GB M.2 SSD (Fast Boot), 1TB HDD, Gaming KB & M, WiFi, Windows 10 Pro

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HP EliteDesk 800 G3 Computer Desktop PC, Intel Core i5-6500, 16GB RAM, 512GB M.2 SSD (Fast Boot), 1TB HDD, Gaming KB & M, WiFi, Windows 10 Pro

The HP Desktop Computer PC comes with RGB LED Light on front Panel. Lighting can be changed with a remote controller and quickly adjust the lighting speed, and the mode with several color changing patterns.
Configured with Intel Core i5-6500 Quad Core Processor 3.20 GHz, 16 GB RAM memory to smoothly run multiple applications and browser tabs all at once. Upgraded with 512GB M.2 SSD that can boot very fast and 1TB HDD.
This HP Desktop SFF does not come with a Dedicated Graphics Card. However, you can add a low-profile graphics card to make this a gaming PC console and can play beginner level games at decent frame rate!
Windows 10 Pro 64-Bit Operating System software installed, this desktop computer load programs, and makes a perfect home or office computer.
The Gaming Keyboard has 9 different modes which can be changed with FN Key and Numeric Letters. The Gaming Mouse has 4 colors Backlight Lights which look amazing.

$294^.50 –