Computer hardware
— recognition convert scan documents into editable text
Optical character
Hardware specifications include
RAM, CPU
With proper care, solid state storage media can last up to
100 years
The computer mouse was invented in the
1960s
Which of these is an optical medium with storage
Blu-ray disc
Which type of hardware carries out the instructions that operate a computer
CPU
You use utility software to
Categorize the various types of computer hardware
In a solid-state Disk Drive, Data is stored on
Circuits
What are the two important components of CPU that help in processing the input into output
Control unit and ram
In which of the following storage devices does memory need to be constantly recharge to retain its contents
Dynamic ram
Benchmarking test to compare similar systems performing
Identical tasks
Which of the following is not a cloud service provider
Mac OS
RAM stands for
Random Access Memory
Surya's computer monitor display doesn't 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
Language modeling incorporates rules of
pronunciation patterns, grammar
Which of the following is a necessary step in maintaining computer hardware
using a UPS or surge processor
You can easily rearrange clips by dragging them
yes
What could cause an external drive, like a USB flash drive, to not be recognized when plugged into a computer
A faulty port
Which of these, they're not equally portable, is the most powerful and usually easier to upgrade than others
Desktop computers
For storage, laptops use
Either a hard disk drive or a solid-slate drive
What type of operating system runs a dedicated electronica device such as a smart thermostat
Embedded operating system
Speech recognition refers to computer's ability to record and edit human speech
False
What is the correct sequence of processing instructions in a machine cycle
Fetch, decode, execute, store
Manny copy the table from a MS Excel file, close the file, and then pasted the table in an MS Word document. Where did the coffee table get stored after he copied it
In the ram
Where on a computer is the operating system generally stored
Internal hard drive
Which cache levels are usually build onto the processor chip
L1, L2
Which of these is not an input device
Printer
Well naming a file on the computer if we press the key corresponding toE 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 converted back to a for display
Software providers may use — to limit the number of devices on which you can install an app
Activation
You type out a few sentences in an MS Word file, and save it on your desktop. How is the data stored in the computer?
As a combination of ones and zeros
Which of the following helps to minimize data loss due to a hard drive problem
Backing up frequently to at least two locations, keeping the area around the device clean, moving the device with care
Speakers and headphones can connect to devices using
Bluetooth, USB, a 3.5 MM audio jack
Interference is a common problem with — Devices
Bluetooth, wireless
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 smart phone while on vacation in Italy. If Jason wants to access those pictures across multiple devices, including his computer, smart phone, and tablet where should he store them
Cloud storage
Some software lets you choose between standard and — installation
Custom
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. The other performance was good at the beginning, it deteriorated quickly over a small period of time. Which of these is most likely the cause
Declining free space on the hard drive
The root directory is the main list of
Files and folders on the drive
Solid-state hard drive's or a type of — memory
Flash
Ram is measured in
Gigabytes
Which of these hardware components can you use to store videos
Hard drive
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 antivirus scanning and software upgraded on all computers
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
Alex needs to email his graduation certificate to a prospective employer. He only has 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
Ryan wants to install a new operating system on his laptop, but first he needs to safely store all of his data so he doesn't lose any of his files. How should Ryan back up all of 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
Laptops, all in one desktops, and smart phones usually have
Internal microphones
Cloud storage is
Internet service that provides remote data storage, a safe and easy back up option for many consumers, good for sharing links to large files
I fitness tractor is an example of a(n) — device
Mixed
What type of communications hardware connect a router to the Internet
Modem
A server that provides storage to network users is called
Network Attached storage
A computer typically connects to a router via a
Network interface card
A low bit rate results in a more realistic sound
No
A scanner is a light-sensing device that converts a digital image into an analog format
No
Failure to properly eject a USB flash drive can damage the computer's memory
No
Hard disk drives contain no moving parts
No
In order to support file sharing, your PC must run a network operating system
No
Microsoft windows is an example of application software
No
Most devices require the user to install the operating system before use
No
Random access memory is a permanent storage location
No
The system restore command in windows returns deleted or modified documents
No
iOS is an open source operating system and can run on devices from a variety of manufacturers
No
Many touchscreens have a coating that is
Oleophobic
Benchmarking is an evaluation of
Performance
— can A car when recording words containing the letters P & B
Plosives
Which type of printer drives continuous lines on large rolls of paper
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
A peripheral device communicate with your computer through a
Port
Things to consider when buying a new computer include
Price, purpose, operating system, form factor
Overheating caused by direct sunlight can damage the
Processor, LCD screen, hard drive
RAID stands for
Redundant array of independent disks
To reinstall windows but keep your personal files, use the _____ command
Reset this PC
A touch screen
Responds to physical touch, is a visual display
What is the correct way to update a device driver
Run the update within the iOS or the latest software from the device manufacturers website
What performance specification does 2 GHz refer to
Speed at which the processor executes instructions
When considering the purchase of a peripheral, you should
Study its specifications, consider whether a service plan or an extended warranty is necessary, know if your computer can connect to it
In the file path C> documents> recipes> pancakes, "recipes" is a
Sub directory
The main categories of software are
System, application, development
When we type text into an MS Word document, we press some keys on the keyboard, and the corresponding letters appear on the screen. What happens in the background?
The computer receives our input, and instantly stores it in binary font, converts it into letters, and displays it on the screen
Modern processors often have — levels of cache
Three
The __ in mini video-editing apps displays the sequence of clips
Timeline
A laptop typically includes a
Touchpad or trackpad, keyboard
To resolve major computer issues, computer professionals often suggest restoring the operating system. Which of the following would happen before the step
Transfer contacts to an external storage device
What is the first step to performing hardware maintenance
Turn off the computer and remove its power source.
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
The two categories of system software are
Utilities and operating systems
Microphones are essential for
Video conferencing, recording live music, voice recognition
Software that converts text into speech is called a
Voice synthesizer
What device do e-learning applications usually used to help users with visual impairment read digital content
Voice synthesizer
Karin realized that a song takes up a lot more space on her computer than that lyrics of the song typed out in an MS word document. why does this happen?
While storing sound, I computer stores a lot of information -like amplitude and frequency -that it does not while it saves text
A program is a set of instructions that tells a computer how to perform task
Yes
A router manager is the flow of network traffic
Yes
A specific touch motion you use to issue commands is called a gesture
Yes
Inkjet printers use pressurized nozzles to spray ink on the paper
Yes
Ram stores data in a way that allows you to change the data
Yes
Set an impact can stop a hard disk drive from working
Yes
Solid-state drives are more durable than hard disk drives
Yes
Some operating systems identify each drive by a name
Yes
Storage device problems can prevent a computer from starting up properly
Yes
The basic sound units of speech are called phonemes
Yes
The connector on a USB flash drive allows transmission of the data and power
Yes
The software You plan to use will affect which OS you choose
Yes
