Once the hard-disk read/write head is located over the desired track, the read/write operation
must wait for the disk to rotate to the beginning of the correct sector. This time is called -
Answers rotational latency time.
On a modern hard disk (magnetic), what is the typical size of a block of data? - Answers 512
bytes
Which of the following printing technologies boils ink in a nozzle to spray a tiny droplet onto the
paper? - Answers Ink-jet printers
When a disk drive has multiple platters, the heads on each surface all line up. The set of tracks
for all the surfaces form a geometric shape similar to a - Answers cylinder.
In technical specifications for flash memory, the read/write block is called a - Answers Correct
page.
All components comprising a computer system except for the ________ , are considered
peripherals. - Answers CPU, memory, and power source
The capability of Smartphones to communicate with low power radio-frequency magnetic fields
in close proximity with similar components is called - Answers near field communications.
What kind of data is represented by a bar code? - Answers Alphanumeric
A proprietary standard, developed by Microsoft to render 2-D and 3-D objects is known as -
Answers DirectX.
The number of bits used to represent colors in an image is known as - Answers color depth.
Storage not immediately available to the CPU is referred to as - Answers secondary storage.
With voice input data, the translation process requires the conversion of voice data into sound
patterns known as - Answers phonemes.
For a display of 1920 pixels by 1080 pixels at 16 bits per pixel, how much memory, in megabytes,
is needed to store the image? - Answers 3.955MB
The time it takes for the hard-disk read/write head to move from one track to another is called -
Answers seek time
The time required to transfer one block of data is called as the - Answers transfer time.
Which of the following printing technologies was derived from xerography? - Answers Laser
printers
A mirrored array requires a minimum of _________ disk drives. - Answers Two
, Displays that use 256 (Red) × 256 (Green) × 256 (Blue) different colors on the screen is
sometimes described as a - Answers true color system.
An International standard maintained by a non-profit consortium to render 2-D and 3-D objects
is known as - Answers OpenGL.
What system performance attribute is most increased by using a redundant array of
independent disks (RAID)? - Answers System reliability
An I/O technique that transfers block data directly between the I/O controller and computer
memory, is called - Answers Direct Memory Access
An important difference between the I/O requirements of keyboards and disk drives is that -
Answers disk data is always transferred in blocks, never as individual bytes as with the correct
disk data is always transferred in blocks, never as individual bytes as with the keyboard.
Computers provide interrupt capability by providing one or more special control lines to the
central processor known as - Answers interrupt lines.
The program that determines the appropriate course of action in the event an interrupt occurs is
called the - Answers interrupt handler.
Which of the following is not a use of interrupts? - Answers A way of buffering large amounts of
data
External events like keyboard input, mouse clicks, printer "out of paper" messages, and power
failures are handled by - Answers interrupts
When an interrupt causes temporary suspension of the program in progress, all the pertinent
information about the program being suspended, including the location of the last instruction
executed, and the values of data in various registers are stored in an area of memory known as
the - Answers process control block.
The method used to communicate events that need special attention to the CPU are known as -
Answers interrupts.
Events related to problems or special conditions within the computer system itself, like divide by
zero, or attempting to execute a nonexistent op code, are called - Answers abnormal events.
An I/O controller that is designed to control hard disks is called a - Answers disk controller.
Power failures, internal time-sensitive events, or external events that are time sensitive will
trigger interrupts that are - Answers high priority events.
Which of the following is an example of an interrupt being used as an external event notifier? -
Answers A keyboard inputs