ISDS Module 3
a stylus is an input device T/F
true
hardware specifications include which of the following
-RAM -CPU
What is the recommended solution if a computer performs slowly?
-Uninstall the programs and apps that are not needed. -Install additional RAM.
speakers and headphones can connect to devices using...
-a 3.5mm audio jack -bluetooth -USB
What are the two important components of CPU that help in processing the input into output?
Control Unit and Arithmetic Logic Unit
when using a Windows Internet browser, pressing ____ reloads a page
F5
in which format is data finally stored in computers?
binary digits
which of these is an optical medium of storage?
blu-ray discs
which of these, though not equally portable, is most powerful and usually easier to upgrade than others?
desktop computers
a joystick is a pen-type input device used to draw and tap on icons
false
console systems only allow one gamepad to be used at a time T/F
false
a fitness tracker is an example of a(n) _____ device
mixed
a computer typically connects to a router via a...
network interface card
_______ recognition converts scanned documents into editable text
optical character
benchmarking is an evaluation of...
performance
______ can occur when recording words containing the letter "p" and "b".
plosives
what printer is commonly used to produce high-quality professional drawings such as architectural blueprints?
plotter
What devices do not need device drivers to be manually installed, and start to function as soon as they are connected to a computer?
plug-and-play devices
which of these is not an input device?
printer
Which is the most suitable device to use in a classroom or a conference room to deliver presentations?
projector
RAID stands for...
redundant array of independent disks
if the image seems stretched, your computer's display may not be set to the default...
resolution
what is the correct way to update a device driver?
run the update within the OS or the latest software from the device manufacturer's website
you should unplug your computer if you...
smell burning or see smoke rising from it
modern processors often have ______ levels of cache
three
What device do e-learning applications usually use to help users with visual impairment read digital content?
voice synthesizer
Alice stored a memory card in her wallet that had all the photographs of a recent trip she took. When she inserted the card into her laptop, her computer wasn't able to read it. Alice tried to access its contents on her other devices but could not. Based on this, which of the following is/are likely to be true?
-The memory card is damaged and its contents are permanently lost. -The memory card is damaged and storing it in a protective case could have avoided the damage.
which of the following are examples of pointing devices
-mouse -touchpad
overheating caused by direct sunlight can damage the...
-processor -LCD screen -hard drive
What is the correct sequence of processing instructions in a machine cycle?
Fetch decode execute store
which type of a computer can be assembled using a monitor, a keyboard, a CPU, speakers, a printer and a mouse?
a desktop computer
you type out a few sentences in a MS Word file, and save it on your desktop. how is the data stored in the computer?
as a combination of 1s and 0s
which of the following refers to a condition in which the CPU performs well but the bus speed is slow?
bottlenecking
What determines the speed at which data travels?
bus width
Jason takes many photographs on his smartphone while on vacation in Italy.If Jason wants to access these pictures across multiple devices, including his computer, smartphone, and tablet, where should he store them?
cloud storage
Jennifer recently bought a new computer to type a new manuscript she's been working on. She also stored a lot of movies on it to watch during her free time. Though the performance was good at the beginning, it deteriorated quickly over a small period of time. Which of these is the most likely cause?
declining free space on the hard drive
what performance specification does 2 GHz refer to?
speed at which the processor executes instructions
It is advised to fully charge the battery of a laptop before using it for the first time.
true
a specific touch motion you use to issue commands is called a gesture T/F
true
cloud storage is...
-an internet service that provides remote data storage -a safe and easy backup option for many consumers -good for sharing links to large files
Which of the following types of storage is/are used to transfer data from one computer to another?
-optical media -external hard drive
Which of the following should you take into consideration when purchasing a computer?
-software and applications you intend to use -storage capacity
the main categories of software are...
-system -application -development
a laptop typically includes a...
-touchpad or trackpad -keyboard
which of the following is/are classified as input device(s)?
-webcam -mouse -touchpad
When should a user consider restoring the operating system?
-when the apps do not respond properly -when the computer is slow
What could cause an external drive, like a USB flash drive, to not be recognized when plugged into a computer?
a faulty port
random access memory (RAM) is a permanent storage location T/F
false
the root directory is the main list of...
files and folders on the drive
solid state hard drives are a type of _________ memory
flash
Alex needs to email his graduation certificate to a prospective employer. He has only physical copies of the certificate. What device could he use to perform the task?
he should use a scanner, which would convert an image into an electronic file
Laptops, all-in-one desktops, and smartphones usually have...
internal microphones
A CPU converts the data entered through the keyboard into output displayed on the monitor T/F
true
A device driver is a program that controls a device attached to the computer.
true
Peripheral devices, like a USB flash drive, are generally connected to your computer through ports.
true
external hardware can be connected without wires or cables T/F
true
storage device problems can prevent a computer from starting up properly T/F
true
the connector on a USB flash drive allows transmission of both data and power T/F
true
we can use Unicode coding scheme to support a larger variety of characters including Chinese, Japanese, and Arabic T/F
true
which of the following is a necessary step in maintaining computer hardware?
using a UPS or a surge processor
the two categories of system software are...
utilities and operating systems
Jack needs a convenient way to browse the Internet, read emails, and store basic data when he travels. Which of the following would be the best option for him?
He should make sure to bring a tablet.
Ryan wants to install a new operating system on his laptop, but first he needs to safely store all his data - over 80 GB - so he doesn't lose any of his files. How should Ryan back up all his data?
He should use an external hard drive to store the data because the amount of data he needs to store is quite large.
The hard disk drive on Joyce's laptop can store up to 500 GB of data. She usually only saves official documents and a few songs that she listens to while she works. However, when she uses more than three applications at the same time, her laptop responds more slowly. What should she do to optimize her storage?
Increase the RAM on her laptop so that more space for temporary storage of data is available, hence, increasing the performance
While naming a file on the computer, if we press the key corresponding to letter A on the keyboard, what process is carried out inside the CPU to display the letter on the screen?
'A' is converted to its ASCII binary code and stored in the memory unit. Then it is converted back to 'A' for display.
To resolve major computer issues, computer professionals often suggest restoring the operating system. Which of the following should happen before this step?
Transfer contents to an external storage device.
all-in-one computers are easier to service and upgrade but occupy more space than desktop computers T/F
false
binary code uses alphanumeric character to represent all values T/F
false
in order to support file sharing, your PC must run a network operating system T/F
false
most computers can operate normally in extreme temperatures and withstand high humidity and power fluctuations T/F
false
speech recognition refers to a computer's ability to record and edit human speech T/F
false
the System Restore command in Windows returns deleted or modified documents T/F
false
Surya's computer monitor display does not seem to work despite repeated attempts to fix the issue. Which of the following is most likely to be causing display problems?
faulty power or video cable
Which of the following is a game controller that is held with both hands and used to control movement of on-screen objects by pressing buttons and moving hardware components?
gamepad
Which of these hardware components can you use to store videos?
hard drive
ink-jet printers use pressurized nozzles to spray ink onto paper T/F
true
solid state drives are more durable than hard disk drives T/F
true
you can easily rearrange clips by dragging them T/F
true
what is the first step to performing hardware maintenance?
turn off the computer and remove its power source
Daniel wants to buy a desktop to use for playing games after work. He loves racing games and wants to make sure his laptop has all the specifications needed to run them smoothly and efficiently. Which of these factors should he consider?
-RAM capacity - it provides temporary storage that applications use to run smoothly -Processor core - some applications, especially games, have greater processor requirements
interference is a common problem with ______ devices
-bluetooth -wireless
which of the following factors can affect processor performance of a CPU?
-clock speed -bus width
an operating system uses available storage space on a startup drive for...
-storing programs -storing apps - virtual memory
Alessandro wants to use his desktop computer to video chat with his mother.What hardware does he need to accomplish this?
Use his webcam and speakers so that he and his mother can both see and hear each other.
some software lets you choose between standard and ______ installation
custom
in which of the following storage device(s) does memory need to be constantly recharged to retain the contents?
dynamic RAM (DRAM)
Rocco runs a software firm that creates database management systems for other businesses. How can he ensure that his employees' computers remain protected from viruses and other malware?
he should have periodic anti-virus scanning and software upgraded on all computers.
where on a computer is the operating system generally stored?
internal hard-drive
software that converts text into speech is called a...
voice synthesizer
Manny copied a table from a MS Excel file, closed the file, and then pasted the table in an MS Word document. Where did the copied table get stored after he copied it?
in the RAM
