What is the jumper setting on a SCSI device to configure it to use the fourth SCSI id? Remember, SCSI ids start with zero.
Answer: C
Correct answer: 011
SCSI IDs count from zero, so the fourth is ID 3, and 3 in three bits is 011. The two low jumpers are shorted and the high one left open.
Please log in or register to report this question.
Computers process data under the control of sets of instructions termed as
Answer: A
Correct answer: computer programs
A program is the set of instructions that directs the processing. Data is what is processed and a bus is what carries it.
Please log in or register to report this question.
What is the size of the reserved memory area?
Answer: B
Correct answer: 384 kb
The first megabyte of a PC's address space is divided into 640 KB of conventional memory and the 384 KB above it reserved for video buffers, adapter ROMs and the system BIOS:
\[ 1024 - 640 = 384\ \text{KB} \]
Please log in or register to report this question.
What voltage does a Pentium system use?
Answer: D
Correct answer: +3.3 volts
Later Pentium processors run their cores at 3.3 V rather than the 5 V of earlier chips, which is what allowed the clock speed to rise without the power dissipation becoming unmanageable.
Please log in or register to report this question.
How many devices can be used on a single SCSI bus? Keep in mind that the SCSI host adapter counts as a device.
Answer: B
Correct answer: 8
A narrow SCSI bus has eight IDs, 0 to 7, and the host adapter takes one of them - conventionally 7. So eight devices in total, seven of them peripherals.
Please log in or register to report this question.
How many DMA channels are in an AT-machine?
Answer: B
Correct answer: 8
An AT class machine has two cascaded DMA controllers giving eight channels, numbered 0 to 7. Channel 4 is consumed by the cascade, leaving seven for devices - which is why the figure 7 is often quoted as well.
Please log in or register to report this question.
In laser technology, what happens during the transfer stage?
Answer: C
Correct answer: The image is transferred from the drum to the paper
At the transfer stage the paper is given a strong positive charge, which pulls the negatively charged toner off the drum onto the page. Fusing then melts it into the fibres.
Please log in or register to report this question.
Resistance is measured in ohm.
Answer: A
Correct answer: True
Resistance is measured in ohms, named after Georg Ohm and written with the Greek capital omega.
Please log in or register to report this question.
You can have EISA and MCA devices in the same PC.
Answer: B
Correct answer: False
EISA and MCA are rival extensions of the PC bus, electrically and mechanically incompatible, so a machine has one or the other. EISA accepts ISA cards; MCA does not.
Please log in or register to report this question.
The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is:
Answer: D
Correct answer: System RAM problem
A memory fault stops the machine before it gets far, but the display would still show the POST error. The three plausible causes all lie in the video path itself - card, cable or monitor.
Please log in or register to report this question.
