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Q120 (CAPF/2025) Science & Technology › ICT, AI, Cybersecurity & Emerging Tech › Computer architecture basics Answer Verified

1 gigabyte in binary system is equivalent to

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Your answer: —  Â·  Correct: B
Explanation

In the binary system (base-2), data storage units are calculated using powers of two. While the International System of Units (SI) defines a gigabyte as 10^9 (1,000,000,000) bytes, the binary system defines it as 2^30 (1,073,741,824) bytes. In this binary context, 1 kilobyte (KB) equals 1,024 bytes (2^10), and 1 megabyte (MB) equals 1,024 kilobytes (2^20). Consequently, 1 gigabyte is equivalent to 1,024 megabytes (2^10 MB). Although modern standards often use the term 'gibibyte' (GiB) to specifically denote the binary 1,024-based measurement to avoid confusion with the decimal 1,000-based 'gigabyte', the binary system traditionally used in computing and operating systems maintains the 1,024 ratio between successive units.

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