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sashaice [31]
3 years ago
10

Write a note on secondary storage​

Computers and Technology
1 answer:
slega [8]3 years ago
8 0

Answer:  Storage devices are non-volatile devices. That means that when the power is removed from them, for example, when you switch your computer off, they retain their contents (unlike RAM, which is volatile – it loses its contents). You can then retrieve the contents next time you switch your computer on. Storage devices can be used to hold operating systems, applications and files, amongst other types of software. They are simply big suitcases – used only for storage. We have already seen that when you want to use an application kept on a storage device, it has to be moved to RAM before you can start using it. This applies to the operating system, your files and any other category of software. For this reason, RAM is sometimes known as Primary Memory whereas storage devices are often referred to as Secondary Storage devices.

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X = 1 if (A = 1 OR B = 1) OR (A = 0 AND B = 1
Gnoma [55]

Answer:

For question a, it simplifies.  If you re-express it in boolean algebra, you get:

(a + b) + (!a + b)

= a + !a + b

= b

So you can simplify that circuit to just:

x = 1 if b = 1

(edit: or rather, x = b)

For question b, let's try it:

(!a!b)(!b + c)

= !a!b + !a!bc

= !a!b(1 + c)

= !a!b

So that one can be simplified to

a = 0 and b = 0

I have no good means of drawing them here, but hopefully the simplification helped!

4 0
3 years ago
Taking a suitable example in c language explain the of call by value and call by reference concepts.
Degger [83]

Answer: The difference between call by value and call by reference is that in call by value the actual parameters are passed into the function as arguments whereas in call by reference the address of the variables are sent as parameters.

Explanation:

Some examples are:

call by value

#include <stdio.h>  

void swap(int, int);

int main()

{  int a = 10, b= 20;

 swap(a, b);

 printf("a: %d, b: %d\n", a, b);

}  

void swap(int c, int d)

{

 int t;

 t = c; c = d; d = t;

}  

OUTPUT

a: 10, b: 20

The value of a and b remain unchanged as the values are local

//call by reference

#include <stdio.h>

 void swap(int*, int*);

 int main()

{

 int a = 10, b = 20;

 swap(&a, &b);   //passing the address

 printf("a: %d, b: %d\n", a, b);

}

void swap(int *c, int *d)

{

 int t;

 t = *c; *c = *d; *d = t;

}

OUTPUT

a: 20, b: 10

due to dereferencing by the pointer the value  can be changed which is call by reference

8 0
3 years ago
An information system can enhance core competencies by
Nutka1998 [239]

Answer:

An information system can enhance core competencies by: encouraging the sharing of knowledge across business units.

Explanation:

Hope this helps you ! please mark me brainless

4 0
2 years ago
HELP! WILL GIVE BRAINLIEST
maw [93]

Answer:

Creative, helpful, communicative, colorful, detailed

Explanation:

6 0
2 years ago
Read 2 more answers
The Warn-on-Forecast has been developed by the National Weather Service to help predict hazardous weather earlier. Which of the
allsm [11]

Answer:

Federal agencies will be able to disseminate information to large local communitie

Explanation:

the headquarter of National weather service is responsible for to coordinate weather related warnings to organisations to ensure compatibility and effectiveness of weather services and provide  public protection and safety.

National Weather service entered in the new erra of innovation with use of technology they will be able to disseminate information to large local communitie

5 0
3 years ago
Read 2 more answers
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