The size of a computerʹs memory is measured by the number of bytes that it can store. The following table lists the
number of bytes in commonly used storage units. $$\begin{array} { l | l }
1 \text { kilobyte } ( \mathrm { KB } ) & 2 ^ { 10 } \text { bytes } \
\hline \text { 1 megabyte (MB) } & 2 ^ { 20 } \text { bytes } \
\hline 1 \text { gigabyte (GB) } & 2 ^ { 30 } \text { bytes } \
\hline 1 \text { terabyte (TB) } & 2 ^ { 40 } \text { bytes }
\end{array}$$ Calculate the number of bytes in the following.
-2 megabytes
A) 2,097,152
B) 2048
C) 2000
D) 2,000,000

Question

The size of a computerʹs memory is measured by the number of bytes that it can store. The following table lists the
number of bytes in commonly used storage units. $$\begin{array} { l | l } 
1 \text { kilobyte } ( \mathrm { KB } ) & 2 ^ { 10 } \text { bytes } \
\hline \text { 1 megabyte (MB) } & 2 ^ { 20 } \text { bytes } \
\hline 1 \text { gigabyte (GB) } & 2 ^ { 30 } \text { bytes } \
\hline 1 \text { terabyte (TB) } & 2 ^ { 40 } \text { bytes }
\end{array}$$ Calculate the number of bytes in the following.
-2 megabytes
A) 2,097,152
B) 2048
C) 2000
D) 2,000,000

Quizplus · Accepted Answer

1 megabyte (MB) is equal to $2^{20}$ bytes, so 2 megabytes is $2 \times 2^{20} = 2,097,152$ bytes.

The Size of a Computerʹs Memory Is Measured by the Number