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Elanso [62]
3 years ago
8

In many supermarkets customers can pay for their shopping using credit cards. (a) Name two items of information stored on the ma

gnetic stripe on these cards. (b) State two ways that the supermarket computer would check the credit card.
Computers and Technology
1 answer:
slamgirl [31]3 years ago
7 0

Answer:

Explanation:

Two items on the magnetic strip are, Credit Card info and Balance

Two ways supermarket may check are the PIN pad you are using to pay or their reciept system.

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Answer:

2^32 times as many values can be represented

Explanation:

32-bit. This means that the number is represented by 32 separate one’s and zero’s. 32 bits of 2 possible states = 2^32=4,294,967,296 possible values.

Integer meaning that only whole multiples of one are accepted.

Signed meaning that negative values are accepted. This halves the number of possible positive values (roughly), so the largest number you can represent is 2^31–1=2,147,483,647, but instead of 0, the smallest number you can represent is -2,147,483,648. An unsigned 32-bit integer, by contrast, can represent anything from 0 to 4,294,967,295.

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Answer:

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True or false for a given set of input values, a nand
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Hopefully this helps you answer your question.
6 0
3 years ago
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