- (A) DOS
- (B) Windows
- (C) Unix
- (D) Linux
_______ is considered the largest glacier of Pakistan.
March 18, 2026
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- (A) Siachen Glacier
- (B) Tirich Mir Glacier
- (C) Biafo Glacier
- (D) Hispar Glacier
Which one of the following is not a multitasking operating system?
Which one of the following is not a multitasking operating system?
A multitasking operating system lets you run several programs at once. DOS is different—it’s a single-tasking system, so you can only run one program at a time. Windows, Unix, and Linux do multitasking, handling multiple processes side by side. So, if you’re looking for the single-tasking option, it’s DOS.
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