CSE 3: Personal Computers Midterm Study Guide
the acronym RAM stands for...
Random Access Memory
The acronym ROM stands for
Read Only Memory
______ is a data storage device used for storing and retrieving digital info using one or more rigid rapidly rotating disks (platters) coated with magnetic material
a Hard Disk Drive (HDD)
which of the following is a QR code most likely used for?
a link to a website on an event poster
which of the following is not considered a Personal Computer (PC)
a mainframe
an Ultra HD screen has...
a total resolution of 3840 pixels by 2160
A(n) ______ is software used by a computer to perform a set of tasks or functions for the benefit of the user
application
what does ALU stand for
arithmetic logic unit
adding two inputs is a(n)
arithmetic operation
a ______ is a block of thin and thick lines placed on a product so that it can be scanned for pricing or other information
bar code
binary is an example of what kind of numeral system?
base-2
what is typically the smallest addressable unit of memory on a computer system
byte
____ is a small block of very fast memory typically between 512 Kb and 2 Mb in size
cache
the primary user interface of modern smartphones (such as iPhones or Android phones) is operated through the use of a
capacitive touchscreen
the acronym CPU stands for
central processing unit
what is typically the primary difference between smartphones and tablets?
dimensions
before web browsers, the primary draw the internet held for the general public was...
A(n) _____ is a computer system which is part of a larger system which performs a dedicated function
embedded computer
in a video monitor, lower response time results in...
faster video transitions therefore fewer visible image artifacts
which of the following storage units are solid state (no physical moving parts)?
flash memory
the msot common color printers are....
inkjet printers
a(n) ______ repeatedly passes a laser beam back and forth over a engatively charged cylinder called "drum" to define a differentially charged image
laser printer
determining whether one value is equal, greater, or smaller than another value is a(n)
logical operation
a common hand-held input device used to move a cursor around a computer screen is called a
mouse
a commone hand-held input device used to move a cursor around a computer screen is called a...
mouse
when a CPU has more than a single processor, it is called...
multi-core processor
which of the following is not a unit of measure for computer storage?
nanobyte
Silicon chips were eventually replaced in computers by...
nothing yet
What is the primary difference between a laptop and desktop
portability
In 1843, Ada Lovelace predicted that computers could be used to:
produce graphics, be useful to science, compose music
____ is the total amount of time it takes to respond to a request for service on a display
response time
_____ is when several processes on a computer system are executed after the othere on a single processor
serial processing
a computer's primary storage can be likened to a person's...
short term memory
which of the following is an example of speech recogntition?
siri
_____ have no mechanical components
solid state drives (SSD)
_____ allows a computer system to identify human language and convert it into a form a computer can interpret
speech recognition
the Amazon Echo and Apple's Siri now use which input method?
speech recognition
these systems are helpful to people who cannot use their hands while they work...
speech recognition
the number 5 in hexadecimal is ____ in decimal
5
______ is an encoding for English alphanumeric characters as a 7-bit numbers
ASCII
how many bytes are in a kilobyte?
1000
which of the following represents the binary number 1011 in decimal?
11
With microprocessors, the integration of a whole _____ onto a single chip oro n a few chips greatly reduced the cost of processing power
CPU
the first mechanical computing device ever designed was Charles Babbage's
Difference engine
Which of the following is considered to be the first general purpose computer?
ENIAC
_____ developed the first micro processor
Intel
what is one of the main differences between LED/LCD and CRT monitors?
LED/LCD moniotrs are a type of flatscreen display and CRTs are not
The trend which states that the number of transistors per square inch on Integrated Circuits (IC) has doubled every two years since the integrated circuit was invented is called what?
Moore's Law
In which country was the ARPANET developed?
USA
a form of random access computer memory used to store image data for computer display hardware
VRAM
a ______ is software used for locating, retrieving and displaying content on the World Wide Web
Web browser
a digitizing tablet is controlled by a _____ and allows the user to ______ onto a computer
stylus/ enter drawings
in 1939, Konrad Zuse created this programmable electronic computer
the Z1
The simultaneous communication process between a mainframe and several users is known as
timesharing
the most commone pointing device used on laptops is the...
touchpad
which technology, after 1948, filled the role of vacuum tubes incomputers?
transistors