Digital Electronics - Number Systems and Codes - Discussion

Discussion Forum : Number Systems and Codes - General Questions (Q.No. 10)
10.
If a typical PC uses a 20-bit address code, how much memory can the CPU address?
20 MB
10 MB
1 MB
580 MB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 2 of 2.

Rama Krishna Sambari said:   8 years ago
Bit is denoted as 'b'.
Byte is denoted as 'B'.

20 bits = 20b.
2^20 = 2^20 * 2^10 = 1024b * 1024b = 1Kb * 1Kb = 1Mb.

The answer is 1Mb not 1MB.
(2)

Ryan said:   6 years ago
I agree @Rama. Thanks.
(1)

Briano said:   6 years ago
@All.

So, MB is quite different from Mb?
Buy how do you pronounce it?
MB - Megabits
Mb - Megabytes.

Anyone clear my doubt.
(1)


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