Tag: hardware

Questions Related to hardware

How much data will a high density (HD) floppy disk hold?
hardware

  1. 124 KB

  2. 640 KB

  3. 720 KB

  4. 1.44 MB

  5. 2.88MB

Show answer
Correct Option: D
Explanation:

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?

hardware

  1. hot, dry conditions

  2. cool, damp conditions

  3. cool, dry conditions

  4. hot, damp conditions

Show answer
Correct Option: C

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?
hardware

  1. 0

  2. 1

  3. 4

  4. 13

  5. 14

Show answer
Correct Option: E
Explanation:

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.