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Calculate the file size in bits for a two minute sound recording that has used a sample rate of 1000 Hertz (Hz) and a sample resolution of 5 bits.

First, calculate time in seconds:2 minutes * 60 = 120 secondsFile size (bits) = time (seconds) * sample rate (Hz) * sample resolution (bits)File size = 120 * 1000 * 5 bit...

Answered by James G. Computing tutor
3805 Views

i) Convert 01101001 from binary to denary. ii) Convert 27 from denary to hexadecimal. ii) State one use of hexadecimal in computing and why it is more beneficial in this application that binary.

i) 011010012 = 10510ii) 2710 = 1B16iii) Colour codes, MAC addresses, memory locations, many others.The main advantage of hexadecimal over a number system like b...

Answered by Shafaan J. Computing tutor
4889 Views

Write a Pseudocode function that returns the factorial of an integer input.

--------------------------------------INPUT XY = 1
WHILE ( X > 1) Y = X * Y X = X - 1
OUTPUT Y-------------------------------It is also possible to complete this task using recursion
DE...

Answered by Computing tutor
1816 Views

Describe two different functions performed by an operating system [4 marks]

As we can see the question is worth four marks, so we need to identify two functions performed by an operating system, and then be able to give a description of what they actually are. It might be easiest...

Answered by Matthew G. Computing tutor
5717 Views

How would you represent the decimal number 143 in 7 bit binary?

First look at the leftmost digit, which represents how many 128s are in the number. There is one 128 in 143, so we mark that as a 1. Then take the remainder of the value - in this case 143-128 = 15, and m...

Answered by Joel C. Computing tutor
2575 Views

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