What does CHS stand for in disk geometry?

What does CHS stand for in disk geometry?

• A. Cylinder Head Sector
• B. Cylinders Heads Sectors
• C. Cylinder Heads Sector
• D. Circles Heads Sectors

Answer: (A)

The idea being tested is how disk geometry is described and located using CHS. CHS stands for Cylinder-Head-Sector, a three-part addressing scheme: you specify a cylinder (a set of tracks at the same radius across all platters), a read/write head (which surface to access), and a sector (the smallest addressable unit on a track). The best match is Cylinder Head Sector. It uses the singular form for each dimension and places the terms in the correct order: cylinder, head, sector. This exact phrasing is the conventional way CHS is written, reflecting the three dimensions used to locate data on older disk drives. The other options don’t fit because they either pluralize the terms (Cylinders Heads Sectors), replace Cylinder with Circles, or mix singular and plural in a way that isn’t standard for CHS (Cylinder Heads Sector).

The idea being tested is how disk geometry is described and located using CHS. CHS stands for Cylinder-Head-Sector, a three-part addressing scheme: you specify a cylinder (a set of tracks at the same radius across all platters), a read/write head (which surface to access), and a sector (the smallest addressable unit on a track).

The best match is Cylinder Head Sector. It uses the singular form for each dimension and places the terms in the correct order: cylinder, head, sector. This exact phrasing is the conventional way CHS is written, reflecting the three dimensions used to locate data on older disk drives.

The other options don’t fit because they either pluralize the terms (Cylinders Heads Sectors), replace Cylinder with Circles, or mix singular and plural in a way that isn’t standard for CHS (Cylinder Heads Sector).