ITPEC IP October 2021 Question 20
ITPEC IP October 2021 — Question 20 of 100
An operating system manages and allocates resources such as CPU time, memory, and auxiliary storage to application programs. This resource-management role lets multiple applications use the computer's hardware safely and efficiently.
Answer (b)
Why not others:
- application interfaces are not identical across every PC operating system, so programs are not automatically OS-independent
- an OS does not generally convert every file's character set automatically
- operating systems are not required to disclose their source code; proprietary OSs can still provide application interfaces
Key rule: The OS mediates between applications and hardware, scheduling and allocating the system's shared resources.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.