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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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Computer Science uses the power of ______________ to solve problems.
Rudiy27

Answer:

Technology, Algorithm

Explanation:

An algorithm csn be defined as a step by step solution to any given problem.

It is one of the procedures in which computer science solves human problems.

The other way is with the use of Technology.

Advanced technological innovations have led to so many solutions to the numerous human problems.

And finally, all these are done making use of a computer.

8 0
2 years ago
Given four inputs: a, b, c & d, where (a, b) represents a 2-bit unsigned binary number X; and (c, d) represents a 2-bit unsi
Amiraneli [1.4K]

Answer:

z = a.c' + a.b.d' + b.c'.d'

Explanation:

The truth table for this question is provided in the attachment to this question.

N.B - a' = not a!

The rows with output of 1 come from the following relations: 01 > 00, 10 > 00, 10 > 01, 11 > 00, 11 > 01, 11 > 10

This means that the Boolean expression is a sum of all the rows with output of 1.

z = a'bc'd' + ab'c'd' + ab'c'd + abc'd' + abc'd + abcd'

On simplification,

z = bc'd' + ab'c' + ac'd' + ac'd + abc' + abd'

z = ac' + abd' + bc'd'

Hope this helps!

6 0
3 years ago
Adobe Indesign project 4 museum indesign file. The instructions are 70 pages long I cant sit still long enough to read them
Alchen [17]

Answer:

? Read on to learn about the possible reasons and resolutions. ... Check whether you have the latest update installed for InDesign. ... InDesign cannot open the file when your system does not have enough memory ... Copy page elements into a new document.

Explanation:

4 0
3 years ago
A(n) _______ is the most basic type of access query
san4es73 [151]
Select Query
I hope this helps! :)
4 0
2 years ago
What TCP message will be generated for an incoming SYN request for which is there no matching LISTENING port
tresset_1 [31]

Answer:

"Connection Refused"

Explanation:

This is the error message that is returned when the server is not listening on the correct port, or the server is offline.

Cheers.

7 0
2 years ago
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