Computer Hardware - Study Mode

[#111] Which peripheral port provides the FASTEST throughput to laser printers?
Correct Answer

(B) SCSI

Explanation

Solution: Among the given options, the peripheral port that provides the FASTEST throughput to laser printers is SCSI (Small Computer System Interface). SCSI offers high-speed data transfer rates and is commonly used for connecting high-performance devices such as laser printers. While options such as RS-232, Parallel, and Serial ports are also used for printer connectivity, SCSI typically offers faster throughput, making it ideal for laser printers requiring quick data transmission. Therefore, the correct option is SCSI.

[#112] The mouse pointer moves erratically, what is the possible cause? The mouse
Correct Answer

(A) ball is dirty

Explanation

Solution: If the mouse pointer moves erratically, a possible cause could be that the ball is dirty . Traditional mechanical mice use a rubber ball inside to track movement. If this ball becomes dirty, it can cause irregular movement of the mouse pointer. Cleaning the mouse ball and the internal rollers usually resolves this issue. Options B, C, and D are less likely causes for erratic mouse movement. A mouse not being connected, driver issues, or incorrect IRQ settings would typically result in the mouse not functioning at all, rather than erratic movement. Therefore, the correct option is the ball is dirty.

[#113] Voltage's measured:
Correct Answer

(B) in series

Explanation

Solution: Voltage is measured in series . When measuring voltage, the voltmeter is connected in parallel with the component or circuit being measured. In a series circuit, the voltage across each component adds up to the total voltage of the circuit. Therefore, to measure the voltage accurately, the voltmeter needs to be connected in series

[#114] Your customer tells you the print quality of their dot matrix printer is light then dark. Which of the following could cause the problem.
Correct Answer

(B) Improper ribbon advancement

Explanation

Solution: If the print quality of a dot matrix printer is light then dark, improper ribbon advancement could be the cause of the problem. The ribbon in a dot matrix printer transfers ink onto the paper, and if it advances improperly, it may result in inconsistent ink distribution, leading to variations in print darkness. Options such

[#115] A 6xx indicates a problem with the:
Correct Answer

(A) floppy drive