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What is 55 using 8-bit unsigned binary?

Answer: 00110111 Thinking: Two possible ways of answering this question expected for A Level and even at GCSE, let's start with the most common. - Method one - consider the column headers for binary numbers....
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Answered by Joseph C. • Computing tutor
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When data is transmitted over long distances, latency can become an issue. Explain what latency is.

Latency is the time delay between something being initiated and the moment it's first effect begins
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Answered by George B. • Computing tutor
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Some problems are intractable. What does it mean for a problem to be described as intractable?

An intractable problem is a problem that is solvable, but not in polynomial time or less. Such problems cannot be solved in time considered to be reasonable (i.e. not solvable quick enough to be 'useful').
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Answered by Henry B. • Computing tutor
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Explain how the even parity system works when transmitting ASCII codes. Include a description of the roles of the sending device and the receiving device during transmission.

The sender's role is to add the parity bit . ASCII characters are represented using a 7-bit binary string. A parity bit is added to the beginning of the binary string (i.e. at the most significant bit, or MS...
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Answered by Henry B. • Computing tutor
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What is the denary equivalent of the hexadecimal number A7?

Let's start by looking at the denary (i.e. base 10) number system. In base 10, you have a column for each digit in a number. For example, with the number 5,867 you have a 5 in the 1,000' s column, an 8 in th...
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Answered by Henry B. • Computing tutor
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