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21 Cards in this Set

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  • Back
What computer component has retained its original technology from the 8088 to the present, 2004?
FLOPPY DISK
IBM developed the first floppy disk drives around ____. These drives used the _-inch floppy disk. The ____-inch came later, shortly followed by the ____-inch format.
1972.
8-inch.
5`1/4-inch.
3`1/2-inch.
The floppy disk drive cable is a ribbon with __-conductors.
A seven wire _____, __ to __, to determine which drive is the A drive and which is the B.
34.
Twist, 10 to 16.
In the floppy cable, the A drive connector is at the ___ of the cable, past the _____, and the B drive is in the ______.
end.
twist.
middle.
When troubleshooting the floppy disk, you see the light on and stays on indicates what?
The cable connection is backwards.
What do you call a power that not only supplies power, it also recharges the internal battery of a portable device?
A charge.
Explain: Lead-Acid batteries
Uses
Characteristics
Charge
Technology
Developed in 1859, contain lead and sulphuric acid.
Uses-fixed locations, large devices where weight is not a factor.
Characteristics-may be exposed to wide temperature variations. Heavy and bulky. Filled with liquid or gel.
Charge-partially-has no effect. Deep discharge-tolerate a few.
Technology-mature.
Explain: Nickel-Cadmium, NiCd batteries
Uses
Characteristics
Charge
Technology
Invented in 1899.
Uses-Portable power tools, flashlights.
Characteristics-Inexpencive,tolerate some misuse, last long, can replace alkaline AAA, AA, C, and D.
Charge-full charge-discharge operate better. 2,000 charge cycles. Develops memory of charge cycle. Charge in an hour, follow instructions carefully. Overcharge may explode at 300 degrees F.
Technology-other batteries are replacing them. Loose 20% charge monthly.
Explain: Nichel-Metal Hydride, NiMH
Uses
Characteristics
Charge
Technology
became popular in 1990.
Uses-portable devices like NiCd.
Characteristics-no NiCd's environmental impact issues. Tolerate heat poorly. Cannot deliver large burst of curent.
Charge-full charge-discharge better. More complex charge than NiCd. Looses 30% monthly.
Technology-Likely to replace NiCd and disposable alkaline batteries.
Explain: Lithium-Ion, Li-Ion batteries
Uses
Characteristics
Charge
Technology
Uses-cell phones, notebook computers, PDAs.
Characteristics-largest amount of energy for its size, no burst current like NiCd, More complex charge, Do not tolerate heat well, Expensive. Built-in "fuel guage" Over voltage protection.
Charge-No charge cycle issues. Does not develop a memory. Partial charge is better. deep charge-dont live long.
300-500 cycles. loose 10% monthly. Device circuitry takes care of charging, you just leave and forget about it.
Technology-Continually evolving to overcome limitations.
Explain: Lithium-Ion Polymer batteries
Uses
Characteristics
Charge
Technology
newer Li-Ion variation.
Uses-still being developed.
Characteristics-plastic electrolytes, less complex charging circuits, built in any shape.
Charge-being developed.
Technology-offer few direct consumer advantage over Li-Ion.
Explain: Supercapacitors batteries
Uses
Characteristics
Charge
Technology
Uses-backup energy for a PC's clock circuit in a medium-term power outage.
alternative-fuel automobiles.
Characteristics-total energy capacity is relatively small.
Charge-unlimited cycle life, charge-discharge rapidly. No memory, very safe.
Technology-advancing.
Explain: Rechargeable alkaline batteries
Uses
Characteristics
Charge
Technology
Traditional disposable alkaline battery makers offer this type.
Uses-Same as alkaline
Characteristics-good shelf-life.
Charge-recharge before they reach 50% capacity. Any further will reduce life. 50 cycles max. Never know how much charge remains. loose .3% per month.
Where is MAKEBT32.EXE and what is it for?
In windows 2000 pro installation cd in the BOOTDISK folder.
It is to make Setup Disks.
What are the two ways to get to the backup program to make the ERD(Emergency Repair Disk)?
1.Properties window of the hard or floppy disk drive.
2.Through the Start menu-programs-accessories-system tools-backup.
What are the autoxec.nt, config.nt and setup.log files in the ERD for?
autoxec.nt and config.nt are provided to support DOS mode operations.
setup.log is a snapshot of the windows 2000 installation. This tells Windows 2000 what files are installed, and where they are installed. Missing or damaged system files can be reinstalled.
To install the recovery console in Win2000 what do you type in the RUN textbox?
d:\i386\winnt32.exe /cmdcons
(remember there is a space betweet .exe and /cmdcons)
To see a list of Recovery Console Commands you type what?
help
Pressing the F8 key when the boot menu appears will open what?
Windows 2000 Advanced Options Menu
You should make it a habit to create a new ERD whenever you change the ________ or ________ configurations of your computer.
Hardware or software.
Metric screws have _____ threads and are smaller in ________ than standard screws.
finer.
diameter