Computer Hardware Quiz 2
| Description: Computer Hardware Quiz 2 | |
| Number of Questions: 13 | |
| Created by: Aliensbrain Bot | |
| Tags: hardware |
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1
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4
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5
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7
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8
To solve this question, the user needs to know about the Interrupt Request (IRQ) system and how it applies to the LPT1 (Line Print Terminal 1) port.
LPT1 is a parallel port commonly used for printers and other similar devices. In terms of IRQ, it typically uses IRQ7.
Now, let's go through each option and explain why it is right or wrong:
A. 1: This option is incorrect. IRQ1 is typically used for the keyboard controller.
B. 4: This option is incorrect. IRQ4 is typically used for the serial port COM1.
C. 5: This option is incorrect. IRQ5 is typically used for the sound card.
D. 7: This option is correct. LPT1 commonly uses IRQ7.
E. 8: This option is incorrect. IRQ8 is typically used for the real-time clock.
Therefore, the answer is: D.
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the black wires of both connectors should NOT be next to each other
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P8 and P9 don't plug into the system board
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the black wires of both connectors should be next to each other
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it doesn't matter which way you plug them in, the voltages are the same
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They are identical except for their shape.
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AT supplies use a single P1 power connector while ATX uses P8 and P9.
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AT power supplies run on 120V AC current while ATX uses 220V AC
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AT supplies use P8 and P9 power connectors while ATX uses a single P1 connector.
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a byte stored in the FAT to indicated remaining slots
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the optimal transmission speed of data over a CAT 5 cable
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a system for balancing the voltage coming out of the power supply
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an extra bit stored with data in RAM that is used to check for errors when the data is read back
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the optimal transmission speed of data over a CAT 5 cable
IRQ 6 is commonly assigned to:
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sound card
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COM1
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floppy drive controller
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LPT1
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Keyboard
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input, processing, output, and storage
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keyboard, display, memory, and disk drive
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word processing, spreadsheets, database, and contact management
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read, write, calculate, and display
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bits, bytes, words, and OSI
hat kind of connectors are used to connect a PC power supply to a hard drive?
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AT
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molex
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mini-molex
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P9
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chamfer
IRQ 1 is commonly assigned to:
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it's usually open
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system timer
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real time clock
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keyboard
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none of the above
AI Explanation
To answer this question, we need to understand what IRQ (Interrupt Request) is and how it is commonly assigned in computer systems.
IRQ is a mechanism used by computer systems to handle hardware interrupts. Each hardware device is assigned a specific IRQ number, which allows the system to prioritize and handle interrupts from different devices.
Now let's go through each option to determine the correct answer:
Option A) It's usually open - This option is incorrect because IRQ 1 is not commonly left open. It is typically assigned to a specific hardware device.
Option B) System timer - This option is incorrect because IRQ 0 is commonly assigned to the system timer, not IRQ 1.
Option C) Real-time clock - This option is incorrect because IRQ 8 is commonly assigned to the real-time clock, not IRQ 1.
Option D) Keyboard - This option is correct. IRQ 1 is commonly assigned to the keyboard. When you press a key on the keyboard, it generates an interrupt signal that is handled by the system using IRQ 1.
Option E) None of the above - This option is incorrect since the correct answer is option D.
Therefore, the correct answer is option D. IRQ 1 is commonly assigned to the keyboard.
How much data will a high density (HD) floppy disk hold?
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124 KB
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640 KB
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720 KB
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1.44 MB
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2.88MB
To solve this question, the user needs to know the storage capacity of a high-density (HD) floppy disk.
Now, let's go through each option and explain why it is right or wrong:
A. 124 KB: This option is incorrect. It is the storage capacity of a single-sided, double-density (DD) floppy disk, not an HD floppy disk.
B. 640 KB: This option is incorrect. It is the storage capacity of a double-sided, double-density (DD) floppy disk, not an HD floppy disk.
C. 720 KB: This option is incorrect. It is the storage capacity of a double-sided, double-density (DD) floppy disk formatted with 9 sectors per track, not an HD floppy disk.
D. 1.44 MB: This option is correct. It is the storage capacity of a double-sided, high-density (HD) floppy disk, which uses smaller magnetic particles to store more data than a DD floppy disk.
E. 2.88MB: This option is incorrect. This is the storage capacity of an extended density (ED) floppy disk, which is not as widely used as HD floppy disks.
Therefore, the correct answer is:
The Answer is: D. 1.44 MB
Which of the following conditions most increases the likelihood that ESD will occur?
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hot, dry conditions
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cool, damp conditions
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cool, dry conditions
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hot, damp conditions
AI Explanation
To answer this question, we need to understand what ESD stands for. ESD stands for Electrostatic Discharge, which is the sudden flow of electricity between two objects with different electrical potentials. ESD can occur when there is a buildup of static electricity on an object and that object comes into contact with another object or surface.
Now let's go through each option to understand which condition most increases the likelihood of ESD:
Option A) hot, dry conditions - In hot, dry conditions, the air tends to have low humidity, which reduces the likelihood of static electricity buildup. Therefore, this condition is less likely to increase the likelihood of ESD.
Option B) cool, damp conditions - In cool, damp conditions, the air tends to have higher humidity, which can help dissipate static electricity and reduce the likelihood of ESD. Therefore, this condition is less likely to increase the likelihood of ESD.
Option C) cool, dry conditions - In cool, dry conditions, the air tends to have low humidity, which can increase the likelihood of static electricity buildup. Therefore, this condition is more likely to increase the likelihood of ESD.
Option D) hot, damp conditions - In hot, damp conditions, the air tends to have high humidity, which can help dissipate static electricity and reduce the likelihood of ESD. Therefore, this condition is less likely to increase the likelihood of ESD.
The correct answer is C) cool, dry conditions. This condition is more likely to increase the likelihood of ESD because low humidity in the air promotes the buildup of static electricity.
Which IRQ does the hard disk controller commonly use?
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0
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1
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4
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13
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14
To answer this question, you need to have knowledge about computer hardware and its components, specifically the hard disk controller and IRQ (Interrupt Request) numbers.
IRQ numbers are used by various hardware devices to request attention from the CPU. Each device is assigned a unique IRQ number to ensure proper communication and coordination between the hardware and the CPU.
In the case of the hard disk controller, it commonly uses IRQ 14.
Now let's go through each option and determine if it is the correct answer:
A. 0: This option is incorrect because IRQ 0 is typically used for the system timer.
B. 1: This option is incorrect because IRQ 1 is commonly used for the keyboard controller.
C. 4: This option is incorrect because IRQ 4 is commonly used for the serial port (COM1).
D. 13: This option is incorrect because IRQ 13 is commonly used for the math coprocessor.
E. 14: This option is correct. IRQ 14 is commonly used for the hard disk controller.
Therefore, the correct answer is E.