PC requirements

Call of Duty: Black Ops System Requirements

Call of Duty: Black Ops needs at least Intel® Core™2 Duo E6600 or AMD Phenom™ X3 8750 or better, 2GB of RAM and Shader 3.0 or better 256MB NVIDIA® GeForce® 8600GT / ATI Radeon® X1950Pro or better graphics.

Verified Sources: Steam store listing
Call of Duty: Black Ops minimum and recommended PC specifications
Component Minimum
Operating system Windows® Vista / XP / 7
Processor Intel® Core™2 Duo E6600 or AMD Phenom™ X3 8750 or better
Memory 2GB
Graphics Shader 3.0 or better 256MB NVIDIA® GeForce® 8600GT / ATI Radeon® X1950Pro or better
Storage 12GB*
Not sure how your PC compares? Use the Can I Run It checker — pick your CPU and GPU and it tells you which column you land in.

Other platforms

Call of Duty: Black Ops is also available on these systems, where hardware is fixed and no per-PC check is needed:

PlayStation 5 PlayStation 4 PlayStation 3 Xbox 360 Mac PC (Microsoft Windows)

Quick answers

Running Call of Duty: Black Ops on PC

Can my PC run Call of Duty: Black Ops?
Compare your CPU, GPU and RAM against the minimum column below. If your parts match or beat every minimum row, the game will launch — though you may need to lower settings. Matching the recommended column is what gets you 60fps at 1080p.
How much storage does Call of Duty: Black Ops need?
12GB*