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4 years ago

What does the cpu do (in terms of register contents and stack) when it executes a jsr instruction?

1 answer:

6 0

In 65xx assembler: It puts the address of the next instruction on the stack, and loads the jsr's argument into the program counter.

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If a programming language does not use short-circuit evaluation, what is the output of the following code fragment if the value

miss Akunina [59]

Answer:

Run time error, no output. If myInt = 0 and other is 3, then 3%0 will never occur...apart from that, myInt was neither declared nor initialized

Explanation:

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3 years ago

Computer viruses and coding books

timofeeve [1]

Is there a picture to go along with this? I don’t see one and an willing to help!

3 0

3 years ago

Consider the following relation: CAR_SALE (Car#, Date_sold, Salesman#, Commision%, Discount_amt Assume that a car may be sold by

Nady [450]

Answer:

See explaination

Explanation:

The given relation is:

CAR_SALE(Car#, Date_sold, Salesperson#, Commission%, Discount_amt)

Primary key: {Car#,Salesperson#}

We will first check whether the relation is in 1NF.

A relation is said to be in the 1st Normal form(1NF) if all the columns in the relation have atomic values. In this case, the relation is in 1NF.

A relation is said to be in the second normal form(2NF) if it satisfies the condition that all non keys are completely dependent on the primary key and just a part of the primary key.

In the case of the CAR_SALE relation, the Commission% depends only on the Salesperson# and not on the combination of Car# and Salesperson#. This means that the given relation is not in 2NF. To satisfy 2NF, we make two relationships as given below:

SALE_DETAIL(Salesperson#, Commission%)

and CAR_SALE(Car#, Date_sold, Salesperson#, Discount_amt)

Now both the relations are in 2NF.

For a relation to be in 3NF, no non-key should be functionally dependent on another non key.

In the case of the CAR_SALE relation, it is specified that the Date_sold field determines the Discount_amt. Therefore the modified CAR_SALE is not in 3NF.

To satisfy 3NF, we seperate the non key and the dependent non key and create a different table.

Final Relations:

SALE_DETAIL(Salesperson#, Commission%)

Discount_Detail(Date_Sold, Discount_Amt)

CAR_SALE(Car#, Date_sold, Salesperson#)

7 0

3 years ago

1. in terms of technology, we often said to be living in the _____ age.???

sleet_krkn [62]

I think its the new age either that or end times

3 0

3 years ago

Read 2 more answers

The numbers, text, or cell references used by the function to return a value are called ____.

Alenkasestr [34]

The numbers, text or cell references used by the function to return a value are called ARGUMENTS. In computers and technology, arguments is referred to as a value that is assigned to something that returns when it is stated in a code.

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4 years ago