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iVinArrow [24]
4 years ago
8

1. Discuss each of the following terms: a. data b. field c. record d. file

Computers and Technology
1 answer:
tigry1 [53]4 years ago
7 0

Answer:

A) Data:

The raw facts and the figure is known as data. It is collected from different types of sources for different kinds of purposes. Data is stored in the form of information that is used by the computer system.

For example: data is collected by the research paper and e-mail is also the example of data.

B) Field:

 Field is defines as the character and the group of characters in the form of alphabets and in numeric form which contain specific meaning. A field is use to define various components and storing the data in the system.

C) Record:

A set of one and more than one field which logically describe the particular information or data within the same domain is known as record. A set of various records is constitute as file. It is also refers to the unique field information.

D) File:

A collection of various records is known as file. Files are used in the computer system for storing various types of data and information.

For example: A file contain the records of the students.

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Read 2 more answers
Given a list of numbers, find the correct function to find the sum of the squares of only the positive elements.
vovikov84 [41]

Answer:

sqsum4

Explanation:

So to raise a number to a power in python, you can use the ** operation, which is usually confused with the ^, which is an operation, but it is not for raising numbers to a power. It is the xor bit operation, which if you don't know at the moment, it's fine, since it's not necessary for this. each of these lists uses a generation comprehension which is generally defined as: (x for x in object if condition) with the if condition being optional, but in this case it's necessary. If it's a bit confusing, you can define a generator using a function so it's a bit more spread out:

def generator(object):

   for x in object:

       if condition:

           yield x

Although in this instance were going to be performing some operation on x, which in this case is squaring it. So let's just look at the two functions that use the **, since they should be the only options that will be correct.

sqsum1(nums):

   This function does square x, except it uses incorrect syntax. The condition should come after the for loop. Python likely wont tell you this, because it may think you're trying to do something else. You can do one line if statements like this: a if condition else b, which will return a if the condition is true, and b if it isn't. So it may think that you're trying to do this one line if statement, and say that you're missing an else. The function could even implement in this way: <em>x**2 if x > 0 else 0 for x in nums</em>. This way if the x is negative it counts as 0, or in other words isn't counted towards the sum. But without this fix, the function will raise a syntax error

sqsum4(nums):

   This will square each number in x only if the current element "x" is greater than 0, or in other words positive. And then it returns the sum. So this function returns the expected output

5 0
2 years ago
When uninstalling software, it is best to delete the folder containing the software?
vladimir1956 [14]
I would uninstall it first and then delete the folder if the folder still exists, usually when you uninstall something it deletes that folder with the software as well.

3 0
3 years ago
Key exchange is so important that you should write your own to avoid bugs in other people s libraries. (
lana [24]

Answer:

The answer to this question is the option "a".

Explanation:

key exchange is a method of cryptography(It is a method of protecting data through the use of codes like [email protected]#.) by which the data exchange between two parties. It follows a cryptographic algorithm. The key exchange also used for key establishment.key exchange is used for data encryption so the answer to this question is true.

8 0
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