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viva [34]
3 years ago
5

Identify a logical operation (along

Computers and Technology
1 answer:
tankabanditka [31]3 years ago
3 0

Answer: Provided in the explanation section

Explanation:

The Question says;

Identify a logical operation (along

with a corresponding mask) that, when

applied to an input string of 8 bits,

produces an output string of all 0s if and

only if the input string is 10000001.​

The Answer (Explanation):

XOR, exclusive OR only gives 1 when both the bits are different.

So, if we want to have all 0s, and the for input only 10000001, then we have only one operation which satisfies this condition - XOR 10000001. AND

with 00000000 would also give 0,

but it would give 0 with all the inputs, not just 10000001.

Cheers i hope this helped !!

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What is an occupation?​
LiRa [457]

Answer:

a job or profession.

4 0
3 years ago
I need help with this!!! Are headphones, radios, dishwashers, and remote controls considered Computers? Do any of them store dat
Bogdan [553]

Answer:

Yes, these things can be considered a computer. And they can also store and process data.

Explanation:

Headphones, radios, dishwashers, and remote controls are all computers because they all have some sort of logic board inside the device to control what it does. Example, a dishwasher has internal components that it uses to keep track of how long the wash/rinse cycle have lasted and how long they are supposed to last.

I hope that helps!

7 0
3 years ago
What is the difference between arithmetic and relational operators​
denpristay [2]

Answer:

The arithmetic operator is used by the program to perform simple algebraic operations like addition, subtraction, multiplication, division, etc. Relational operators are the ones that are used to validate a relationship between the two operands as if they are equal, greater than, less than, etc.

4 0
2 years ago
Write a SELECT statement that returns one row for each customer that has orders with these columns:
d1i1m1o1n [39]

Answer:

SELECT email_address,

SUM(item_price * Quantity) AS item_price_total,

SUM(discount_amount * Quantity) AS discount_amount_total

FROM Customers c

JOIN Orders o ON c.CustomerID = o.CustomerID

JOIN Order_Items oi ON o.OrderID = oi.OrderID

GROUP BY email_address

ORDER BY item_price_total DESC

Explanation:

In this SQL statement the SELECT statement selects the following columns:

email_address

item_price

Quantity

discount_amount

There are two tables Customers and Order_Items

SUM aggregate function is used to add the values of the product of the columns discount_amount and Quantity. It is also used to get the sum of the product of two columns discount_amount and Quantity.

A new temporary column named item_price_total is used to name the sum of the product of two columns discount_amount and Quantity using AS which is ALIAS and it is used to give a name to some columns or a table.

Similarly discount_amount_total name is given to the column which calculate the sum of the product of two columns i.e. discount_amount and Quantity.

JOIN is used here to join the columns from the tables Order_items and Customers.

GROUP BY is used to group the result of rows and is used with functions like SUM. Here the rows are grouped by the email address.

ORDER BY is used to order the result. Here the result is ordered by item_price_total in descending  order.

This SELECT statement can also be written as following:

SELECT c.email_address,

SUM(o.item_price * o.Quantity),

SUM(o.discount_amount * o.quantity)

FROM customer c

JOIN Order_Items o ON o.id = c.id

GROUP BY c.email_address

7 0
3 years ago
What is the numeric range of a 16-bit twos complement value? A 16-bit excess notation value? A 16-bit unsigned binary value?
blagie [28]

Answer:

twos complement value is (-2^15 -1) -32768 to 32767.

excess notation value is -32768 to 32767.

unsigned binary value is (2^16) 0 to 65535

Explanation:

Excess notation: used to represent signed integers. Always uses fixed number of bits with leftmost representing the sign.

Twos complement notation: As opposed to excess notation, a sign bit of 0 is used to represent the non-negative (+) sign and a 1 for the negative (-); again, zero is included in the non-negative set.

Unsigned Binary values: are binary values/bits that don't have signs

7 0
3 years ago
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