Podcast
Questions and Answers
Which of the following component stores values in short-term memory?
Which of the following component stores values in short-term memory?
- CPU
- Hard Disk
- Power Supply
- RAM (correct)
Which hardware component processes data?
Which hardware component processes data?
- Hard Disk
- RAM
- CPU (correct)
- Power Supply
Which of the following components convert AC to DC?
Which of the following components convert AC to DC?
- Power Supply (correct)
- CPU
- Hard Disk
- RAM
Which of the following computer components typically has the FASTEST performance?
Which of the following computer components typically has the FASTEST performance?
Which of the following is NOT an optical storage device?
Which of the following is NOT an optical storage device?
Which of the following is NOT a long-term storage device?
Which of the following is NOT a long-term storage device?
Which of the following uses persistent memory chips to store data?
Which of the following uses persistent memory chips to store data?
Which of the following stores data using microscopic light and dark spots?
Which of the following stores data using microscopic light and dark spots?
A thick magnetic disk made of aluminum platters. Uses read/write heads to access data stored on the platters.
A thick magnetic disk made of aluminum platters. Uses read/write heads to access data stored on the platters.
A flash device with storage capacity similar to a small hard drive.
A flash device with storage capacity similar to a small hard drive.
Uses lasers to read and write information stored in the form of pits in their reflective coating.
Uses lasers to read and write information stored in the form of pits in their reflective coating.
Up to several TB in storage capacity and cost per MB is cheap.
Up to several TB in storage capacity and cost per MB is cheap.
Faster than other devices. No moving parts. Last longer than other storage devices.
Faster than other devices. No moving parts. Last longer than other storage devices.
Ideal for music and video. Portable and cheap with a long shelf life.
Ideal for music and video. Portable and cheap with a long shelf life.
You need a storage device that has very large storage capacity, is fast, and is relatively inexpensive. Which storage device will best suit your needs?
You need a storage device that has very large storage capacity, is fast, and is relatively inexpensive. Which storage device will best suit your needs?
Which of the following is not an advantage of SSDs over HDDs?
Which of the following is not an advantage of SSDs over HDDs?
Which of the following are optical storage devices?
Which of the following are optical storage devices?
Which of the following has the ability to store user data even if the power to the computer is off?
Which of the following has the ability to store user data even if the power to the computer is off?
While troubleshooting a problem with a computer, a technician has tested and confirmed a theory on how to fix the problem. Which of the following is the NEXT step the technician should perform?
While troubleshooting a problem with a computer, a technician has tested and confirmed a theory on how to fix the problem. Which of the following is the NEXT step the technician should perform?
The troubleshooting methodology starts by identifying the problem. The first step in identifying the problem is to gather information. Which of the following is the NEXT step?
The troubleshooting methodology starts by identifying the problem. The first step in identifying the problem is to gather information. Which of the following is the NEXT step?
Which of the following is NOT an example of an operating system?
Which of the following is NOT an example of an operating system?
In most operating systems, what is a running application called?
In most operating systems, what is a running application called?
A user was working on a spreadsheet when the application became unresponsive. After waiting several minutes, the application is still unresponsive. Which of the following is the BEST action for the user to take?
A user was working on a spreadsheet when the application became unresponsive. After waiting several minutes, the application is still unresponsive. Which of the following is the BEST action for the user to take?
Which of the following describes the firmware in gaming consoles, TVs, and smart cars?
Which of the following describes the firmware in gaming consoles, TVs, and smart cars?
Disk cleaners, antivirus software, backup tools, and file compressors are which kind of system software?
Disk cleaners, antivirus software, backup tools, and file compressors are which kind of system software?
Which category of system software provides a platform for application software to run on?
Which category of system software provides a platform for application software to run on?
What kind of system software tells the computer how to communicate with peripherals, such as a printer or scanner?
What kind of system software tells the computer how to communicate with peripherals, such as a printer or scanner?
Which kind of system software is preinstalled on electronic products like blenders, automobiles, and televisions?
Which kind of system software is preinstalled on electronic products like blenders, automobiles, and televisions?
You recently purchased a new sound card and installed it in a free PCI slot in your computer. You plug in your old speakers, but you don't get any sound. You have checked all cable connections, and they are secure. You have also ensured that the speaker volume is appropriately adjusted and isn't muted. Which of the following BEST describes the next step you should perform?
You recently purchased a new sound card and installed it in a free PCI slot in your computer. You plug in your old speakers, but you don't get any sound. You have checked all cable connections, and they are secure. You have also ensured that the speaker volume is appropriately adjusted and isn't muted. Which of the following BEST describes the next step you should perform?
As a member of the help desk administration team, you've been assigned to update the driver for the network adapter that is installed on most of the machines in your department. You have a copy of the latest driver on a USB flash drive. Which Windows utility allows you to manually update this new driver?
As a member of the help desk administration team, you've been assigned to update the driver for the network adapter that is installed on most of the machines in your department. You have a copy of the latest driver on a USB flash drive. Which Windows utility allows you to manually update this new driver?
Carol purchased a new printer and attached it to her workstation with a USB cable. The printer is powered on, but the computer does not recognize the printer. Which of the following should Carol do NEXT to be able to send print jobs to the printer?
Carol purchased a new printer and attached it to her workstation with a USB cable. The printer is powered on, but the computer does not recognize the printer. Which of the following should Carol do NEXT to be able to send print jobs to the printer?
On Windows, which application lets you add accounts, change passwords, manage power consumption, and personalize your computer environment?
On Windows, which application lets you add accounts, change passwords, manage power consumption, and personalize your computer environment?
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Study Notes
Computer Systems Components
- RAM is the component responsible for short-term data storage.
- The CPU serves as the main processor for executing data and instructions.
- The power supply converts alternating current (AC) to direct current (DC).
- The CPU typically has the fastest performance among computer components.
- Hard disks do not qualify as optical storage devices.
- RAM is categorized as a volatile memory, not suitable for long-term data storage.
- Flash drives utilize persistent memory chips to retain data.
- Compact disks store data through microscopic light and dark spots.
Storage Devices Characteristics
- Hard Disk Drives (HDD) are thick magnetic disks with aluminum platters that use read/write heads for data access.
- Solid State Drives (SSD) offer storage capacity comparable to small hard drives and feature no moving parts for improved durability.
- Optical Disk Drives read and write data using lasers on reflective surfaces.
- HDDs can store multiple terabytes (TB) at a low cost per megabyte.
- SSDs offer faster data access and longer life compared to traditional storage devices.
- Optical disks are cost-effective and portable, ideal for multimedia storage.
Troubleshooting and Maintenance
- After confirming a troubleshooting theory, establish an action plan and identify potential outcomes.
- The troubleshooting process begins with problem identification and requires gathering information followed by duplicating the issue.
- Programs or applications currently running in an operating system are termed "processes."
- To resolve an unresponsive application, the Task Manager should be used to terminate it.
Operating Systems and Software Types
- Embedded operating systems (OS) are found in devices like gaming consoles and smart TVs.
- Utility software encompasses tools like disk cleaners, antivirus programs, and backup utilities.
- Operating systems provide a platform for applications to function.
- Device drivers manage communication between the computer and peripherals.
- Firmware is pre-installed software in electronic devices like cars and home appliances.
Driver and Hardware Management
- For hardware issues like a non-functional sound card, checking for updated drivers on the vendor's website is recommended.
- Device Manager in Windows is the utility used for manually updating installed drivers.
- If a new printer is not recognized by the computer, installing the latest printer driver from the manufacturer's website is necessary.
- The Settings application in Windows allows users to manage accounts, change passwords, and customize their computing environment.
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