Karteikarten
Data Representation: Number
Karten in diesem Stapel (11)
- 1What is Binary?Binary is the second base number system which consists of the values 1s and 0s. This is the language used by computers- processed in as a sequence of 1s and 0s.
- 2Why do computers use binary? (recap from units)As computer circuits operate on electrical impulses, there are only two states in which the computer can be in. So, this is why binary is the most convenient and efficient system for computers to use as the 1s and 0s can represent an electrical switch- which is either on or off depending on whether an electrical impulse is present.
- 3How can the following table be used to convert from binary to denary?The table above allows us to turn binary numbers into denary numbers as each column represents a single bit which is equivalent to a 'switch'. If there is an electrical impulse present then the box is filled with a 1, if not a 0. This table is quite useful as using it we can easily identify which values to count. Whichever numbers have a 1 under them are a part of our final answer and after that, we can go through each column and keep on adding our values. The total is our denary value.
- 4Binary to DenaryUse the table above. (Answer is the sum of whichever numbers that have a 1 under them)
- 5Denary to Binary (eg. 84)
- 6Binary Addition
- 7What is a binary shift?A binary shift is when the digits in a binary number are either shifted to the right or the left by a certain amount.
- 8What does shifting a binary number to the left do?Doubles it.
- 9What does shifting a binary number to the right do?Halves it.
- 10What causes an overflow error?Overflow errors happen when the largest number that a register can hold is exceeded. The excess number is lost.
- 11What causes an underflow error?Underflow errors are
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- Karteikarten am Data Representation: Number, erstellt von Harbinn Kaur Mann am 18/10/2019.
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- Harbinn Kaur Mann
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