Answer:
A: Radio waves.
Explanation:
Computers use short-wave radio in order to communicate with devices in it's immediate vicinity.
Answer:
result = 0
i = lo
while i <= hi:
result = result + i
i += 1
Explanation:
Initialize the <em>result</em> as 0 to hold the summation value.
Since we are asked not to change the value of <em>lo</em> and <em>hi</em>, our loop control variable is <em>i</em> and initially it starts from <em>lo.</em>
Since we are asked to add the number from <em>lo</em> to <em>hi, </em>while loop condition checks it.
While the condition satisfies (during each iteration), the value of <em>i</em> is added to the result and the value of <em>i</em> is incremented by one.
Answer:
1.ClassName and . operator
2. ClassName and [] operator
Explanation:
There are two ways to get the members of a class first one is by using dot(.) operator.
Example : with assumption that person is a class object and age is the member in it we can use it as:
person.age
Second way is to use [] operator with member as a string in it which is used by the compiler as key to get its value.
Example : person["age"]
Answer:
Advantages of hardware:
Physical existence
Multitasking
Speedy
Disadvantages:
Costly as different equipment cost differently
Time consuming
requires space
Privacy issues
Explanation:
Advantages of Software:
Less costly
Improved privacy controls
Requires no space
Disadvantages:
Does not have physical existence
hacking and cyber attacks may steal important information
Regular updates required
Answer:
An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: host or network interface identification and location addressing.
Explanation:
