This is the correct ascending order of the given characters.

This is not a number system.

The ASCII value of a = 97.

192 can be written as 11000000 in binary form. 11000000 is divided into two strings with 4 bit size. So, it is 1100 and 0000, i.e,C0 in hexadecimal form..

MIDI is a format of audio file, which has an extension, that is .mid.

F0 means 11110000, i.e 128+64+32+16+0+0+0+0=240.

This is the correct answer. To convert into Octal number system, the Binary number will split into three parts having 3 bits. So, it would be 000 , 001 and 010. So, it would be 012.

128 + 0 + 0 + 0 + 0 + 0 + 2 + 0 = 130. So, this answer is correct.

F has binary representation 1111 and 0 has 0000. So, this is the correct answer.

The ASCII value of 9 = 57.

200 octal number means 010 , 000 and 000,i.e. 010000000. So, its hexadecimal number will be 1000 , 0000,i.e. 80.

The ASCII value of Null is 0.

This is the correct answer because 030 can be written like 000, 011 and 000. So, it is 000011000, i.e. 24.

Octal number system's base is 8.

2 is the base of Binary number system.