3次元画像処理の高速化や, 動画をなめらかにするなどの機能をもつ, 描画処理のためのハードウェアはどれか。
令和7年度 ITパスポート試験 問67
This question's explanation and your answers so far.
問 67
Incorrectア
CGI (Common Gateway Interface) is a mechanism (interface specification) by which a web server calls an external program and dynamically returns its results; it is a software-level method of integration. It is not hardware that performs rendering processing, so it is incorrect.
- イ
正解 The correct answer is choice イ, GPU (Graphics Processing Unit). A GPU is hardware dedicated to rendering computations such as the coordinate transformation and rendering of 3D graphics; it uses parallel processing across many computing units to accelerate image processing and make video playback smoother. It matches all three conditions in the question: “accelerating 3D image processing,” “making video smoother,” and “hardware for rendering processing.”
Incorrectウ
GUI (Graphical User Interface) is a style of user interface in which graphical elements such as icons and windows are operated with a mouse; it is a concept relating to operability. It is not hardware dedicated to rendering, so it is incorrect.
Incorrectエ
UPS (Uninterruptible Power Supply) is a power-supply device that draws power from a battery during a blackout or momentary outage, supporting the safe shutdown of equipment or the continued operation of the system. It is unrelated to image processing or rendering, so it is incorrect.
- A GPU is parallel-processing hardware dedicated to rendering (graphics) computations, achieving faster 3D processing and smooth video playback.
- Distinguishing the similar three-letter acronyms (CGI/GUI/UPS): CGI is a web integration mechanism, GUI is an interface style, and UPS is a power-supply device; none of them is hardware dedicated to rendering.