Biometric Authentication Device
A device that reads a unique personal characteristic such as a fingerprint or the iris pattern in your eye and converts its pattern to a digital code
Answer:
An interrupt as the name suggests interrupts the present execution so focus on some other execution.It is a signal generated by hardware or software telling the system it needs attention.
The difference between a trap and an interrupt is that a trap is an interrupt emitted by software.While an interrupt is generated by computer hardware also.
Yes traps can be used internally.
Sometimes they are used to to call the OS(operating system) routines or to catch arithmetic errors.
Answer:
Equity Shares are commonly called Common shares and have both advantages and disadvantages over Preference shares.
- Equity shareholders are allowed to vote on company issues while preference shareholders can not.
- Preference shareholders get paid first between the two in the case that the company liquidates from bankruptcy.
- Preference shareholders get a fixed dividend that has to be paid before equity share dividends are paid.
- Preference shareholders can convert their shares to Equity shares but equity shareholders do not have the same courtesy.
- Preference shares can only be sold back to the company while equity shares can be sold to anybody.
Answer:
False
Explanation:
If one of the data values being entered into a table by the INSERT command violates an existing constraint, the database raises an error and none of the records aimed in the insert command is added.
Thus, in insert command syntax and column specifications has to be met in order to add any values being entered.
Answer:
The correct option for the given question is option(B) i.e dot operator
Explanation:
Structure are collection of different datatypes member element .
Let us consider the example of structure
Struct test
{
int age ;
char name[45];
};
Here test is an "structure" which member is age of "integer" type and name of "String" type.if we have to access the member of structure,firstly we create structure variable name then after that we use dot operator which is also known as member access operator that access the members of structure.
struct test op;// structure variable name
op.age=12; // access the member age
For example
Following is the code in c language :
#include <stdio.h> // header file
struct test // structure declaration
{
int age ;
char name[45];
};
int main() // main function
{
struct test op;// structure variable name
op.age=12; // access the member age
printf("%d",op.age);
return 0;
}
Output:12
so correct answer is "dot operator"