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Can CD-r discs be reused?
No. CD-r (Compact Disc-Recordable) is a Write Once Read Many (WORM) optical medium. You can only write once, though the whole disk does not have to be entirely written in the same session. If you want to reuse a disc, use a CD-rw (Compact Disc ReWritable)
13 What is the main reason why the old floppy discs have died out?
Because new computers have been built without the floppy disc drive and CD discs are much faster and easier.
What problems are associated with the disposal of old computers?
Computers and electronic devices contain a lot of different materials. Some take a long time to degrade naturally (such as metals), others take a very long time to degrade (such as plastics). Most problematic, however, are rare earth metals and heavy metals such as lithium, traces of mercury and similar substances, which can be poisonous when leaking into soil and ground water.
What is the oldest form of computer data storage?
Floppy discs :-P
What is the average size of a DVD movie?
Most DVD discs hold up to 4.7 GB. The movies that these discs are on usually are much lower than that, but it helps to have the spare room.
Do compact fluorescent lamps contain mercury?
yes
How do you spell compact discs?
Compact Discs is the correct spelling.
What is the difference between compact discs and digital versatile discs?
what is difference between compact discs and digital versalite discs
How many atoms of mercury are in a light bulb?
Compact fluorescent light bulbs contain mercury. (For that reason, it is important to be very careful with a broken compact fluorescent bulb, because mercury is highly toxic.) Most other kinds of light bulbs do not contain any significant amount of mercury.
Is mercury used for the filament in light bulbs?
No, not in the filament. You are probably thinking of compact fluorescent light bulbs, which do contain mercury.
Why do magnets erase compact discs?
They don't. Magnets have no impact on compact discs, since they don't work by magnetism.
What was invented after 1971?
Compact discs
Who owns the patent for Compact Disc?
There are literally thousands of patents that deal with various aspects of compact discs, players and recorders for compact discs. One of the first patents for optically readable discs was filed by Phillips Corporation in 1972.
How many discs does a 2013 Camaro hold?
Depends on what kind of "discs" you're referring to... (compact discs? brake discs?)
Marla has a total of 44 compact discs and cassette tapes It she has three times as many compact discs as tapes how many of each does she have?
she has 11 tapes and 33 discs because i cbf explaining
When did compact discs hit the market?
rerr
What invention were made in 1982?
Compact discs.
