The Answer is color:blue for changing an element's font color to blue
Explanation:
The computer's central processing unit (CPU) is the portion of a computer that retrieves and executes instructions. The CPU is essentially the brain of a CAD system. It consists of an arithmetic and logic unit (ALU), a control unit, and various registers. The CPU is often simply referred to as the processor.
Answer:
b. 16
Explanation:
The given PHP code segment consists of 2 statements.
$str="The quick brown fox jumps over the lazy dog";
This defines a variable $str and assigns the given text to it.
echo strpos($str,'fox');
This statement prints the location of 'fox' in the text associated with the variable $str.
Upon execution it will print the value 16 which corresponds to the position of 'fox' in the given sentence.
Answer: A register
Explanation:
Registers are small memory used to store data or values and supply them to the processor as and when needed. These register hold the data temporarily and hold small units of program instructions. So whenever the CPU wants to work on data they have to be made available through the registers. Even after a arithmetic operation the registers serve as buckets for holding the value.
There are different types of registers such as register A, B, C etc and these registers lie in close proximity to the CPU so that we could provide the data immediately and much faster when asked by the CPU.
Therefore we can say that registers are used to temporarily hold small units of program instructions and data immediately before, during, and after execution by the central processing unit (CPU).
Before the use of technology such as computers, information was documented through papers separated in folders. This was a very long and complicated process as people would have to find information by hand, sorting through countless documents. Now, it is much easier and neater to keep information. It can be as easy as digitally searching for someone's name and the computer will sort through countless documents, finding the one you need almost instantly. It is also much less wasteful and safe, as before computers, the use of paper was the only way to permanently keep information, also making documents vulnerable to being lost or stolen.
