Tech in Action Notes

The two major types of system software programs are utility programs and the
operating system
The ___ of the operating system enables users to communicate with the computer system
user interface
OS X is the operating system developed by
All of the following are examples of network operating systems EXCEPT
UNIX was developed by Ken Thompson and Dennis Richie, who worked at
AT and Ts Bell Labs
The latest version of the Mac OS X is
Which of the following is NOT a user interface?
Application programming interface (API)
Using hard disk space to temporarily store data or instructions from RAM is referred to as
Virtual memory
Each device attached to your computer comes with a special program called ___ enables the device and operating system to communicate with each other
device driver
Which of the following is the first step in the boot process?
The BIOS is activated by turning on the computer
Which of the following Windows utility programs arranges pieces of files on your hard drive to allow for faster access?
Disk defragmenter
Which of the following is NOT a windows utility program?
Which utility removes redundancies in a file to reduce the file size?
File compression
You can use the Windows ___ to check on a nonresponsive program
Task manager
Mac OS X includes a backup utility called
Time machine
Storage location for a collection of files
Concentric circle on the hard drive
Pie-shaped wedge on the hard drive
Round, thin plate of mental that makes up a hard drive
Displays open and favorite applications
Time needed for correct sector to spin to the read/write head
Seek time
Time required for the read/write head to move to the correct track
There are ___ levels of cache memory
___ provides high-speed information processing by enabling a new set of instructions to start before the previous set is finished
The speed of a level of cache memory is impacted by
the chip’s proximity to the CPU
RAM is an example of ____ storage
The amount of RAM storage is measured in
In most current systems, ____ is the type of RAM used
The ____ has the largest capacity of any storage device
Mechanical hard drive
Which of the follow ports is NOT used to connect a video card?
To speed up the display of graphics, a __ is installed on some video cards
A __ enables the computer to drive the speaker system
Sound card
In Dolby Digital 7.1, the 1 indicates a ___ speaker
Running the disk defragmenter utility will _____.
Make the hard dive work more efficiently
Running the disk cleanup utility is a quick way to
clear out unnecessary files
To remove all the changes made to your system, the Windows __ utility returns your computer to the state it was in when it came from the factory.
Which statement pertaining to system reliability is FALSE?
An accumulation of temporary internet files has no effect on your computer’s overall performance
To securely erase data, the U.S Department of Defense suggests that the data be overwritten ____ times.
The CPU is composed of the control unit and the ___ unit
arithmetic logic
The process the CPU performs for each program instruction is called the
machine cycle
_____ is a feature of a CPU that allows it to begin to fetch the next instruction before it has finished executing the current one.
made up of plastic or glass and transmits data at extremely fast speeds
twisted pair
made up of copper wires
coaxial cable
single copper wire surrounded by layers of plastic
each node can communicate directly with every other node on the network
central computer provides information and resources to other computers
digital music file format
portable media player
digital video file format
uses satellites to locate a device
technology that allows the sending of text, sound, images, and video clips
number of data points used to capture and image
uses radio wave to transmit data
continuous sound or light waves
text messaging
data plan
determines the cost and amount of data transfer for mobile devices
The Form 1 3D printer founders used the crowdfunding site ________ to ask for $100,000 in pledges
The term ________refers to the use of a single unifying device that handles media, Internet, entertainment, and telephone needs.
digital convergence
What is iOS?
An operating system for mobile devices
The operating system of a cell phone is stored in ________
The primary input devices for smartphones are ________
microphone and touch pad
Many mobile devices include a micro ________ port
Text messaging is also called ________.
short message service (SMS)
SMS messages are limited to a maximum of ________ characters
You can send messages that include photos and videos between mobile devices using ________ technology
multimedia message service (MMS)
An Internet connectivity plan is also known as a ________ plan.
All of the following are advantages of VoIP EXCEPT _______
Excellent reliability during Internet or power outages
________ is a very well-known free VoIP provider
The global positioning system is a network of 21 ________ plus 3 working spares
A main difference between the tablet and the smartphone is the _______
screen size
Which of the following mobile devices is the lightest?
iOS and Android are _____ for tablets and smartphones.
operating systems
The Apple iPhone uses a version of Apple’s _____ as its operating system.
When using a cell phone, a(n) _______ converter chip changes your voice’s sound waves into digital signals.
Analog-to-digital and analog to digital
Google ___ is an online store delivering software for mobile devices.
Each cell in a cellular network is a geographic area centered on ______ station, which is a large communications tower.
base transceiver
Which of the following is NOT an example of a smartphone OS?
You are most likely to find a real-time operating system (RTOS)
in your automobile.
Borrowing hard drive space to optimize RAM storage is known as
virtual memory.
If your computer can’t store all the required OS data in RAM, it can use a temporary file on the hard drive to store data. This is known as a _________ file.
To decide if your current system is still useful for you
check each subsystem to see how it is performing during your work day.
Which of the following is true?
The CPU contains the ALU.
RAID 0 cuts the time it takes to write a file to disk in half
SuperFetch is a memory-management technique that pulls info from your hard drive into RAM
When using 7.1 surround sound there are a total of
8 speakers
Windows creates “restore points” so that you can
return your system to the way it was before you installed new software.
SSD startup drives will reduce the amount of time to boot up
Donating your computer will not necessarily put you at risk for identity theft
Which type of Internet connection requires hardware to be installed outside your home?
Network adapters installed internally in a device are called NICs
Which of the following can be used to add additional ports to your network?
To determine what devices are connected to your router, you should
log into an account associated with your router’s IP address.
Which of the following is NOT a reason to connect your digital entertainment device to your home network?
Your stored entertainment files are more secure when connected to a home network.
Which of the following is NOT an operating system for a smartphone?
A cell phone is cellular because
it uses a network made up of cells or base transceiver stations
Which of the following is false?
Your phone can only be connected to the Internet if there is a WiFi network available
An example of an open source OS is
Each device attached to your computer needs a device driver to communicate with the OS
The first step of the boot process is the power on self test
Which of the following is NOT considered an accessibility utility?
system restore
Apps specifically designed for windows 8
run full screen
The windows app used for file management is
file explorer
If you place a document from your C; drive in the recycle bin in windows
it remains on your hard drive until you empty the recycle bin
the ___ utility is used for detecting lost files and fragments of files on your hard drive
error checking
You can terminate nonresponsive programs with Task Manager
System restore points can only be created by Windows automatically on a regular schedule
Moore’s law refers to
the number of transistors inside a CPU chip
You would not want to consider overclocking if
you want to keep the warranty on your system
The amount of time your current CPU is working is called
CPU usage
The most common type of video memory is a modern video card is
You can run multiple monitors on your system only if
you have a video card that supports more than one monitor
An audio MIDI interface box lets you connect your computer to
Guitars and microphones
Which of the following would NOT be a benefit of networking computers?
Sharing software licenses
Megabit per second is usually used to measure
both a and b
Which of the following is an example of a locally administered network?
P2P network
What do you need to get wireless internet access at home?
Wireless router
802.11ac is the current wireless Ethernet standard
Which of the following might cause interference or poor connectivity between nodes on a wireless network?
All of the above
What device would be useful to amplify a wireless signal?
Wireless range extender
Home network servers are used for file management tasks on a home network
All devices must run the same version of an operating system to connect to a home network
VOIP is a service that lets you
Place phone calls using the internet as the network
Which of the following is NOT a mobile device?
Base transceiver station
Every smartphone contains a GPS chip
A WiFi network is always faster than a 4G network
Analog signals are different than discrete signals because
Analogs waves are continuous
Which is NOT true about self-publishing?
Self-publishing means your work will have a limited reach to readers.
To play digital music files you can use
All of the above
Streaming music services allow you to
Subscribe monthly and have access to millions of songs
A digital camera’s resolution
is measured in MP
Digital video can be stored in an /mpg, file, a.mpeg file or a mp4 file
The aspect ratio of an HD television is more square than that of a standard definition TV