Question

1a. how many bits is 1 MB = 2 b

1b. Internally, computers represent numbers as either binary or hexadecimal

true or false?

Answer 1

• Below is the detailed explanation of the problem mentioned above.

1. How many bits is 1MB(MegaBytes)? : So we know that 1MB(MegaBytes) = 10⁶B(Bytes), now as we know that 1B(Byte)=8b(bits), so 10⁶B(Bytes)= (10⁶*8)b(bits). Hence 1MB= 8*10⁶bits i.e, 8000000 bits. Other units are 1KB i.e,10³B, 1GB i.e, 10⁹B.
2. False: Data in computers is represented in binary not hexadecimal as computers are made up of hardware consisting of digital components which are binary in nature i.e, transistor for example operates in on/off states or 0/1 state so computer works in binary, but we use hexadecimal representation as it is human readable/friendly which means that we represent binary numbers in hexadecimal as they are easy to represent in base-16(hexadecimal), as 4bits in binary can be represented as 1 in hexadecimal A-F all represent 4 bits of binary. So it is very easy and human friendly to use binary(base 2) in the form of hexadecimal(base16).

So we represent numbers in computer as binary and for computing and representation of data in huma readable format we use hexadecimal.

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