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.
Answer
The correct answer is option(C) which is "Index".
Explanation:
Array elements can be differentiated because each element in the array have different index value.In the array all elements are of same data type, so we can not differentiated them on the basis of data type. Also an array can have same value many times, That is why we can not differentiated them on this basis. In the array elements are from any range, so its not possible to distinguish them on range. We can only distinguish elements of an array on their index value because each element have different index in the array.
Answer:
Input, Processing, Storage, Output and Communication devices.
Explanation:
Input devices of computer are like Keyboard, Mouse, Scanner. Output devices of a computer are printers, monitors, and headphones.
There are two storages of computer one of them is REM, which can be lost if computer shutdown/closes. Data stays written on the disk until it's erased or until the storage medium fails (more on that later). An example of a communication device is the microphone.
Answer and Explanation:
To calculate Big O, go through each line of code and determine O(!), O(n) and return your calculation.
For example,
In O (5 +6n), where 6 5 represent five instances of O(1), and 6 represent the 6 O(n).
We compute the time complexity of the algorithm. We get the result, just an estimation. In given algorithms, run time in milliseconds has been provided, such as in T (1) algorithm process in 512 milliseconds and T(2) algorithms process 8129 milliseconds. But big O notation not measured in milliseconds. Information given is not enough to calculate the big O notation.
Answer:
B. "1"
Explanation:
Major north–south routes have numbers ending in "1" while major east–west routes have numbers ending in "0".
Hope this helps!
