Answer:
Optical system. An overhead projector works on the same principle as a slide projector, in which a focusing lens projects light from an illuminated slide onto a projection screen where a real image is formed.
Explanation:
Answer:
cybersecurity
Explanation:
it's either that or anti-spywhare but cybersecurity seems more likely
FTP access is available from other companies, but access is constrained unless the user first authenticates by supplying a user name and potentially a password.
The files are frequently intended for specific uses rather than for public release. For instance, you must send a letter house your consumer address list. Both businesses would not want the public to have access to these materials in this situation. Software is a collection of instructions, data, or computer programs that are used to run machines and carry out particular activities. It is the antithesis of hardware, which refers to a computer's external components. A device's running programs, scripts, and applications are collectively referred to as "software" in this context. Software refers to the processes and programs that enable a computer or other electrical device to function.
Learn more about software here-
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Top down program design is an approach to program design that starts with the general concept and repeatedly breaks it down into its component parts. In other words, it starts with the abstract and continually subdivides it until it reaches the specific. Consider creating the prime factorization of a number like 1540. The steps involved might look like:
1540
2 x 770
2 x 2 x 385
2 x 2 x 5 x 77
2 x 2 x 5 x 7 x 11
Top down program design works the same way. We start with the overall objective and wind up with a series of steps needed to accomplish it.
Answer:
The Python code with the function is given below. Testing and output gives the results of certain chosen parameters for the program
Explanation:
def first_last(seq):
if(len(seq) == 0):
return ()
elif(len(seq) == 1):
return (seq[0],)
else:
return (seq[0], seq[len(seq)-1])
#Testing
print(first_last([]))
print(first_last([1]))
print(first_last([1,2,3,4,5]))
# Output
( )
( 1 , )
( 1 , 5 )
