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21 Cards in this Set
- Front
- Back
What computer component has retained its original technology from the 8088 to the present, 2004?
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FLOPPY DISK
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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.
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1972.
8-inch. 5`1/4-inch. 3`1/2-inch. |
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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. |
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In the floppy cable, the A drive connector is at the ___ of the cable, past the _____, and the B drive is in the ______.
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end.
twist. middle. |
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When troubleshooting the floppy disk, you see the light on and stays on indicates what?
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The cable connection is backwards.
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What do you call a power that not only supplies power, it also recharges the internal battery of a portable device?
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A charge.
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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Where is MAKEBT32.EXE and what is it for?
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In windows 2000 pro installation cd in the BOOTDISK folder.
It is to make Setup Disks. |
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What are the two ways to get to the backup program to make the ERD(Emergency Repair Disk)?
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1.Properties window of the hard or floppy disk drive.
2.Through the Start menu-programs-accessories-system tools-backup. |
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What are the autoxec.nt, config.nt and setup.log files in the ERD for?
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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. |
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To install the recovery console in Win2000 what do you type in the RUN textbox?
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d:\i386\winnt32.exe /cmdcons
(remember there is a space betweet .exe and /cmdcons) |
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To see a list of Recovery Console Commands you type what?
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help
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Pressing the F8 key when the boot menu appears will open what?
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Windows 2000 Advanced Options Menu
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You should make it a habit to create a new ERD whenever you change the ________ or ________ configurations of your computer.
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Hardware or software.
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Metric screws have _____ threads and are smaller in ________ than standard screws.
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finer.
diameter |