The
answer is FALSE because the
interior of commercial Hard disk drive is with stack of magnetic disks
(platters) containing the user’s data and a rotating arm supporting the magnetic
heads. The rotating arm is moved by the torque generated by a voice coil motor
(VCM) mounted at one end of the arm. Data read/write operations rely on the capability of the
governing unit of the HDD to maintain the magnetic read/write heads as close as
possible to center of the desired track. Typically, reliability of data reading
and writing is guaranteed when the head is kept within 5% of the track pitch
from the track center. This means that the accuracy required for the head positioning
is in the range of a few tens of nanometers.
Answer: Coaxial Cable has got two physical channel layer in same axis of the cable that is why it is known as "coaxial cable".
Explanation: Coaxial cable is the main example for television cable and telephone cable that have two physical layer of channels and are separated by a insulating material layer and the outer layer working a ground section.The axis of both the physical layer are present on the same axis of the cable and thus is known as coaxial cable. They cable is usually made up of copper and some other materials.
This includes application software<span> such </span>as<span> a word processor, which enables a user to perform a task, and system </span>software<span> such </span>as<span> an operating system, which enables other </span>software<span> to run properly, by interfacing with hardware and with other </span>software<span>.
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Computer hardware<span> is the collection of physical parts of </span>a computer system<span>. This includes </span>the computer<span> case, monitor, keyboard, and mouse. It also includes all the parts inside </span>the computer<span> case, such </span>as<span> the hard disk drive, motherboard, video card, and many others. </span>Computer hardware<span> is what you can physically touch.
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If a headset plugged into computer is not working properly than one can go for updating the device driver. The correct option is B.
<h3>What is a device driver?</h3>
A device driver is a type of software application that allows one hardware device (such as a computer) to communicate with another hardware device (such as a printer). A device driver is indeed referred to as a software driver.
A driver, also known as a device driver, is a collection of files that instructs a piece of hardware on how to operate by communicating with a computer's operating system.
Every piece of hardware, from internal computer components like your graphics card to external peripherals like a printer, requires a driver.
If a headset plugged into a computer is not working properly, the device driver can be updated.
Thus, the correct option is B.
For more details regarding device driver, visit:
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Answer: Dereferencing a variable that is not a pointer
Explanation:
The execution time also refered to as the CPU time pertaining to a given task is the time that is used by the system to execute a task.
Some of the reasons for a fatal execution-time error include:
• Dereferencing a pointer that has not been initialized properly
• Dereferencing a null pointer
• Dereferencing a pointer that has not been assigned to point to a specific address.
It should be noted that dereferencing a variable that is not a pointer doesn't cause a fatal execution-time error.
