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Debora [2.8K]
3 years ago
15

Which of the following is not an operating system service?

Computers and Technology
1 answer:
skad [1K]3 years ago
5 0

Answer:

c. graphical user interface

Explanation:

An operating system may be defined as the system software which manages the various computer hardware, resources, software and also provides other computer services. It communicates the user with the computer and the computer runs according to the instruction provided by the operating system. It is commonly known as the OS.  

Operating system does not provide any graphical user interface. It consists of necessary components of the software to facilitate the usage or running of the computer.

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Question B_1 (15 points) Please define (describe) local variables and how they are used in computer programming ( e.g. In C, C )
OverLord2011 [107]

Answer and Explanation:

Static variables are variables that still maintain their values outside the score which they are declared. They are declared with the static keyword

Example:

<em>static int score = 30;</em>

Local variables are variables whose scope are restricted to a block. Their values are restricted to the block which they are declared in.

Example:

<em>void abd(){</em>

<em>int score;</em>

<em>}</em>

<em>score is a local variable to abcd() function</em>

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3 years ago
How is an interpreter different from a compiler?
lyudmila [28]

Answer:

An interpreter is quite different from a complier due to the following statement below:

O. An interpreter translates and executes code line by line, while a compiler translates all code at once so that it is ready to be executed at any time.

Explanation:

For an interpreter, it works in translating and execution of the codes line after another line. In a situation where there is a mistake in the code, the next line would not be able to be executed, but rather display error message. On the other hand, compiler translate all codes at once and execute them as a single work.

<em>During its translation of the codes in compiler, should there be any error, it would not be able to execute despite the fact that, the error might be in the last line of the code.</em>

7 0
3 years ago
Read 2 more answers
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kogti [31]

Explanation:

1. special key combination that causes specific commands to be executed typically shortcut keys combine the ctrl or alt keys with some other keys.

2. 5 example of shortcut keys are:-

  • 1. ctrl + A - select all
  • 2.ctrl + B - bold
  • 3. ctrl + C - copy
  • 4. ctrl + U - under line
  • 5. ctrl + v - paste

3. (i) open the start menu

(ii) open Windows task manager

(iii) close the currently active program

(iv) replace

(v) align center

4. the three importance of shortcut keys are :

  • efficient and time saving :- using shortcut make you more efficient at doing certain task on your computer .
  • multi-tasking :- being a multi Tasker is something required in life.
  • health benefit :- cutting down on your mouse usage by using keyboard shortcut can help reduce the risk of RSI (Repetitive Syndrome Injury).

5. shortcut keys are very helpful because it take less time. keyboard shortcuts are generally used to expedite common operation by reducing input sequence to a few keystrokes.

8 0
3 years ago
Question # 4
bezimeni [28]

Answer:

the last one I think not 100% sure

6 0
4 years ago
What is meant by hacking in internet ?ASAP PLEASEEEE​
yanalaym [24]
Im not sure if you mean in or by but heres my answer: Basically to attempt to exploit a private network, control over computers, viruses and such.
8 0
3 years ago
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