プロセッサに関する次の記述中の a, b に入れる字句の適切な組合せはどれか。 [ a ] は [ b ] 処理用に開発されたプロセッサである。CPU に内蔵されている場合も多いが,より高度な [ b ] 処理を行う場合には,高性能な [ a ] を搭載した拡張ボードを用いることもある。
令和元年度 秋期 ITパスポート試験 問95
This question's explanation and your answers so far.
問 95
Incorrectア
The GPU in a is correct, but b is wrong. A GPU is not a processor developed specifically for encryption; it was developed for image processing. There are cases where its parallel computing power is repurposed for tasks such as codebreaking, but its original development purpose is 'image' processing.
- イ
正解 A GPU (Graphics Processing Unit) is a dedicated processor developed for image (graphics) processing. In recent years it is often integrated (built) into the CPU, but for more advanced image processing such as 3D games or video editing, a graphics board (expansion board) equipped with a high-performance GPU is used. Therefore the combination in which a is GPU and b is 'image', namely choice イ, is correct.
Incorrectウ
Both are wrong. VGA is a display standard for monitors (the resolution 640x480, or the name of a video output connector), not a processor. The encryption in b also does not match the content of the description (built into the CPU, or an expansion board).
Incorrectエ
The 'image' in b is correct, but a is wrong. VGA is a standard and connector for video display, not a processor (a computing unit), so it does not fit the descriptions 'a processor developed for ... processing' and 'an expansion board equipped with a high-performance ...'.
- A GPU is a dedicated processor specialized for image (graphics) processing; it may be integrated into the CPU, or mounted as a high-performance expansion graphics board.
- VGA is the name of a display standard for monitors and a video output connector, not a processor; distinguish it from a GPU on this point.