Giáo trình Computer repair

 Approximately one million bytes is known as a _______________. 
• The number of bits processed simultaneously by the microprocessor is the 
processor’s __________. 
External data path 
Word size 
Speed factor 
SEPP 
• Microprocessor speeds are rated in _______________. 
• T/F PCI adapters can install into a PCI or ISA expansion slot. 
• __________ is a bus interface for video adapters developed from the PCI bus. 
• What is another name for the microprocessor? 
• What determines what keystroke is used to access SETUP? 
the manufacturer of the motherboard 
the manufacturer of the ROM BIOS 
the manufacturer of the computer 
the type of RAM installed 
• T/F If a switch is to be enabled, the switch is placed in the OFF position. 
• An ________ is a number assigned to an adapter so that the microprocessor can 
prioritize between devices. 
• T/F All devices must have a separate I/O addresses. 
• .If a system is using cascaded interrupts and a device is assigned IRQ14, what 
interrupt is sent to the microprocessor? 
IRQ0 
IRQ1 
IRQ2 
IRQ9 
IRQ14 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 20 of 27 
• If a system is using cascaded interrupts and a device is assigned IRQ3, what 
interrupt is sent to the microprocessor? 
IRQ1 
IRQ2 
IRQ3 
IRQ9 
IRQ14 
• What is the purpose of the battery on the motherboard? 
To keep the information current in CMOS 
To keep the information current in ROM BIOS 
To keep the information current in RAM 
To keep the POST software current so it can execute during startup 
• What is the purpose of the Boot Sequence option available in most computers 
SETUP? 
Allows POST to be disabled 
Allows RAM testing above 1MB to be disabled 
Allows POST to be executed after the machine boots 
Allows changing where the computer looks first for the boot files 
• The __________ allows a device and the microprocessor to exchange data. 
IRQ 
DMA channel 
POST 
I/O address 
• What interrupt is normally assigned to the keyboard? 
IRQ0 
IRQ1 
IRQ2 
IRQ3 
• T/F POST checks for hardware based on the CMOS settings and displays an 
error if the hardware check does not match the settings. 
• Where is the battery normally located? 
Inside the microprocessor 
Inside the ROM BIOS 
On the motherboard 
Inside the hard drive 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 21 of 27 
• Which of the following are ways to determine pin 1 on the cable? (pick all that 
apply) 
colored stripe on one side of the cable 
arrow etched into the cable connector 
square solder joint 
a colored arrow on one end of the cable’s connector 
• An __________ connects a technician to the computer so that the technician does 
not induce ESD into the electronic components. 
• __________ is noise caused by electrical devices. 
ESD 
Standoffs 
EDD 
EMI 
• T/F A technician can cause data loss on the hard drive if the hard drive is 
mishandled. 
• T/F A soldering iron is a common tool used by technicians. 
• AC wiring has both a __________ and a __________. 
ground, hot 
ground, return 
hot, return 
on, off 
• The type of power that comes from the power supply to a front panel power 
switch is frequently __________. 
AC 
DC 
LAB NUMBER TWO 
• Configure hard drive to the master position and then to the slave position 
• Install a floppy drive 
• Format the hard drive 
• Install Windows 
• Record the amount of RAM 
Each component of this lab will count for 20 point and one must complete four of the five 
to make a passing grade. 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 22 of 27 
LAB NUMBER THREE 
• Disassemble the computer using the safety procedures 
• Label each components of the computer 
• Reassemble the computer using the safety procedures 
• Implement the problem solving techniques in troubleshooting a computer 
• Access the Internet and find documentation on hard drives and explain the 
information obtained 
Each component of this lab will count for 20 point and one must complete four of the five 
to make a passing grade. 
FINAL EXAM 
COMPUTER REPAIR 
• What is a CD-ROM’s x-factor? 
o What interface the CD-ROM uses 
o The type of CD-ROM based on its speed 
o The number of buffers the CD-ROM uses 
o The amount of files the CD-ROM holds 
• The amount of time a CD-ROM drive takes to randomly move around the disk is 
its __________. 
o mean time between failure 
o access time 
o seek time 
o MSDS 
• T/F CD-ROM drives cannot be external units. 
• Which of the following are the two methods for loading a CD into a CD-ROM 
drive? 
o Laser insertion 
o Tray 
o Caddy 
o Ejector 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 23 of 27 
• When an IDE CD-ROM drive is connected along the same cable as a faster hard 
drive, it is important to set the CD-ROM drive to __________. 
o be terminated 
o the first drive select position 
o the second drive select position 
o the slave setting 
• Pick the two hard drive types that are prevalent in computer systems today. 
o ST506 
o HPPCI 
o ESDI 
o IDE 
o RLL 
o SCSI 
• What drive letter does the first hard drive in the computer normally receive? 
o A: 
o B: 
o C: 
o D: 
• What is the command used to partition a hard drive? 
o DEBUG 
o FDISK 
o PART 
o PARTITN 
o FORMAT 
• What is the command used to high-level format a hard drive? 
o DEBUG 
o FDISK 
o PART 
o PARTITN 
o FORMAT 
• The smallest amount of storage space for one file on a hard drive is a ________. 
o Track 
o Cylinder 
o Sector 
o Cluster 
• Which of the following are possible replacement items if a problem occurs with 
the floppy drive system? (Pick all that apply) 
o Floppy drive 
o Disk 
o Cable 
o Controlling circuits 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 24 of 27 
• What drive letter does the first floppy drive in the computer receive? 
o A: 
o B: 
o C: 
o D: 
• T/F 1.2MB disks should not be written to using a 360KB drive. 
• The smallest amount of space for one data file is stored in a _________. 
• The smallest amount of storage space on a floppy disk is a ________. 
o Track 
o Cylinder 
o Sector 
o Cluster 
• Why is expanded memory not used with applications today? 
o It is too hard to set up the CONFIG.SYS 
o Not enough vendors support it 
o It is in direct conflict with Extended memory 
o It is too slow 
• Which of the following POST error codes indicate a memory problem? 
o 101 
o 201 
o 301 
o 601 
• Windows 95 automatically has access to and uses which two of the following 
memory areas? 
o Conventional memory 
o Expanded memory 
o Extended memory 
o Reserved Area 
• What is the purpose of parity? 
o Increases access time 
o Increases access time accuracy 
o Checks data accuracy 
o Creates a POST error code 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 25 of 27 
• Which of the following helps determine if a problem is hardware or software? 
(Pick all that apply) 
o Listening to the computer’s initialization beeps 
o Seeing if the problem occurs only in one application 
o Looking up any error codes that appear 
o Seeing if the problem occurs with only one device 
• Why is re-creating the problem so important to solving a computer problem? 
(Pick all that apply) 
o Because it puts the burden of proof back to the user 
o Because frequently the user is doing something wrong that is not actually 
a computer problem 
o Because the user may not be describing the problem correctly 
o So you can see for yourself the symptoms of the problem 
• The audio beeps heard during the boot-up process are caused by __________. 
o the RAM 
o the microprocessor 
o the BIOS 
o CMOS 
• T/F When troubleshooting a computer problem, check the easy stuff first. 
• What is the best source for looking up a particular POST error code? 
o the documentation for the AUTOEXEC.BAT and CONFIG.SYS files 
o the operating system manual 
o the hard drive manual 
o the BIOS documentation 
• The output from the power supply to the computer’s devices is _________ power. 
o AC 
o DC 
• The power going into the power supply is __________ power. 
• The two types of power connectors are _________ and __________. 
o Return 
o Molex 
o Keyed 
o Berg 
• Power supplies are rated in __________. 
o amps 
o picoseconds 
o watts 
o milliseconds 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 26 of 27 
Survey for document validation: 
107 Parkway Drive 
Martinsville, Virginia 24112 
Dear Dr. Whitley: 
The need for computer repair has increased significantly in the past few months. I have 
recently developed a curriculum for computer repair. It is my hope that the curriculum 
provides the mechanism for one to become proficient in solving computer problems. 
Your critique of the material will assist with the development of this program to address 
our concerns and ensure the effectiveness of solving computer problems. Upon 
completion of the following questions, please mail the form to the above address. 
Your time and cooperation are greatly appreciated. Please feel to contact me at (540) 
656-0220 
Sincerely, 
Frank B. Tatum 
Frank B. Tatum----Teletechnet @ PHCC 
OTED 785 
Page 27 of 27 
CURRICULUM SURVEY 
1. Does the definition of the program content encompass all required aspects of the 
 subject area? 
2. Does the rationale provide solid evidence of the basis of the program? 
3. Is the content source applicable to the subject material? 
4. Is the content structure precise and appropriately interrelated with the content, the 
 program goals, and the unit specifications? 
5. Are there any units that do not meet the goals of the curriculum? 
6. Do the learning activities achieve the aims, goals, and objectives of the curriculum? 
7. Will the sample tests provide adequate evaluation? 
8. What do you feel will strengthen the program? 
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