CIS 141 Q3
____ keys on a keyboard are used for issuing commands in some programs.
function (F1, F2, F3...)
gigabyte
one billion
megabyte
one million
kilobyte
one thousand
Each pixel in a monochrome graphic can be only one of two possible colors (such as black or white).
true
T/F a computer display is the most common form of output device
true
storage devices can be internal (inside the computer), external (outside the computer), or remote (different computer)
true
The video card or the integrated graphics component determines the graphics capabilities of the computer. _________________________
true (built in integrated isn't as good)
basic capabilities are integrated directly into the motherboard instead of on expansion card
true — like sound
In addition to a keyboard, most computers today are used in conjunction with some type of pointing device.
true — mouse is most popular, then it's a trackpad
T/F RAM capacity is measured in bits
FALSE BITES
a graphics tablet is typically connected to a computer via a USB port
almost everything is connected to USB
Some drive letters, such as the letter ____ that is typically used with the primary hard drive, are usually consistent from computer to computer and do not change even if more storage devices are added to the computer.
C: (in the old days there were two floppy drives A and B and first hard drive was C drive)
RAM can be removed and inserted in another computer to move data from one PC to another
False (random access memory, if you pull it out it's erased as soon as electricity is gone)
____ form images by spraying tiny drops of liquid ink onto the page, one printed line at a time.
Ink-jet printers
__ are the standard printer type for business documents
Laser
square is a
QR code (a little more advanced)
CHIP
RAM or Memory
digital cameras most often use __ for storage
SD cards or flash memory
A ____ is an optical code that represents data with bars of varying widths or heights.
barcode
the numbering system we commonly used is called the decimal numbering system because it uses —- symbols to represent all possible numbers
base 10
a __ is the smallest unit of data a binary computer can recognize
bit
8 bits grouped together as a unit form this
bite
T/F as a hard drive begins to get full, it takes less time to locate the data stored on a hard drive
false
____ are small components typically made out of aluminum with fins that help to dissipate heat.
heat sinks they have fan and blow on fins of aluminum to dissipate heat
Print speed is typically measured in ____.
pages per minute (ppm)
With bitmapped images, the color of each ____ is represented by bits; the more bits used, the better the image quality.
pixel
a __ is the smallest colors le area on a video display device
pixel (picture element)
memory that loses its contents when power is removed is
volatile
Notebook and netbook computers usually have a keyboard that is similar to a desktop keyboard, but it is typically smaller.
True
adding RAM to a computer is something most users can do themselves
true
the binary numbering system only uses two symbols — 0 & 1
true
to create 3d ram or flash memory chips the memory cells are stacked on top to create layers
true
display device size is measured diagonally from core net to corner as opposed to the way TV screens are measured
FALSE — TV is diagonal, monitors are perimeter
Printers produce soft copy
FALSE — hard copy is tangible, soft copy can't hold it's like monitor
Images need to be scanned at a lower resolution if the image will be enlarged significantly.
FALSE — it gets pixelated
today's CPU contain hundreds of millions of transistors and the number doubles approximately every 18 months, a phenomenon known as Caboni's Law
FALSE — it's Moore's law, the power of minitursuxstiin doubles every two years. named after gordon moore who helped find the company INTEL
Joysticks are headphones with a built in microphone
FALSE — joystick is an analoug input
Storage media are volatile.
FALSE — storage media is like hard drive, volatile is if it's lost
to add RAM you typically install 8 individual chips
FALSE — they aren't chips with the pins, now it's a card that goes in (a sim)
anything stored on a storage medium is referred to as a
FILE
RAM shed to sets of chips now it's
SIMS or memory modules
SSD are not subject to mechanical failures like magnetic hard drives and are more resistant to shock and vibration
TRUE
Since retrieving data from memory is much faster than from the hard drive, disk caching can speed up performance.
TRUE (disk caching is puts things you commonly access in memory)
when comparing the zoom capabilities of a digital camera look for optical zoom not digital zoom specifications
TRUE optical zoom is what the lense does — digital is what the computer can blow it up
RAM can be thought of the workspace for the computer
TRUE — it's your desk at the office
SSD are becoming the norm for netbooks, mobile devices, and portable devices
TRUE — no mechanical hard drive it's SSD
To connect multiple USB devices to a single USB port, a ____ can be used.
USB hub or dongle
adding RAM to a PC will typically improve performance
correct
A(n) ____ uses a printhead consisting of pins that strike an inked ribbon to transfer the ink to the paper.
dot-matrix printer (pins are the dots) used for duplicates like carbon copies
T/F single core CPU allow computers to work on more than one task at a time
false single core is one thing at a time
The process of representing data in a form that can be understood by a digital computer is called decimal byte representation.
false — it's binary byte representation
RAM is connected to the CPU through the Backside Bus
false — it's connected through a MEMORY bus
____ consists of nonvolatile memory chips that can be used for storage by the computer or the user.
flash memory (USB)
memory on modern PCs is measured in _ unit size
gigabytes (memory) STORAGE is terabyte
A(n) ____ is a flat, touch-sensitive device used in conjunction with a digital pen.
graphics tablet
___ and or names are typically assigned to each storage device
letters of the alphabet (C is typically main)
One type of storage device that is sometimes used with computers and that uses sequential access is a ____.
magnetic tape drive
A ________ is approximately 1 million bytes.
megabyte
the term __ refers to chip based storage
memory or RAM
The display device for a desktop computer is formally called a ____.
monitor (used to monitor what's on the computer)
the main circuit board inside the system unit is called the
motherboard
a __ typically rests on the desk or other flat surface and is controlled by users hand
mouse
most computers support the __ standard which means the computer automatically configured new devices as soon as they are installed and the computer is powered up
plug and play (when you plug it in and the computer automatically recognizes them)
__ means the data can be retrieved directly from any location on the storage medium in any order
random access
__ designed to scan flat objects one page at a time
scanner (flatbed)
To synchronize all of a computer's operations, a ____, which is located on the motherboard, is used.
system clock
the speed of a processor is the speed the clock beats at
system clock (it's like a drummer for military marches)