Power TipsPower Tips

  Main Menu

Home: Help: Power_tips: Megafux
Kung Fu Power Tip Home:

How many hertz in a Giga whammy?

Storage Sizes:

The smallest increment of storage is a single bit, or Binary Digit. A bunch of mathematicians got all coffeed up and decided it would be fun to make a way to represent any number using only two digits, Zero and One. You've probably heard that computers operate off of zeroes and ones, and a bit is single zero or one. Computer CPU's (which stands for Central Processing Unit) are essentially big transistors that have many many thousands (millions?) of circuits on them. These circuits can be open or closed, and depending on their state register as a zero or a one.
1 bit = 1 Zero or 1 One.

That does me essentially zero good. The next unit is the Byte, which is made up of 8 bits. By combining 8 instances of Zero or One, you can make up to 256 combinations. The letters and numeric characters we use in written communications can be represented by the American Standard for Computre Information Interchange (ASCII). Alphanumeric characters!? You're soaking in it!.
One byte = 8 bits (enough information to make one character)

Pretty exciting, huh? Next we have our friend the Kilobyte. Kilo is the metric way of saying "thousand", so logically, a kilobyte is roughly a thousand bytes. It's really 1024 bytes (2 to the ninth power, 2x2x2x2... 9 times. Whaddya want, there's only two digits.)
One Kilobyte = 1024 Bytes

How many kilobytes in a MegaByte? Incredibly, there are 1024 kilobytes in a megabyte. A MegaByte is usually considered a million bytes, it's really 1024 sqared, so 1048576 bytes in a Meg. No one seems to abbreviate MegaByte the same way. Sometimes it's MB, or mb, or megs, or Mb. Hard drives and ram are sold by the Meg.
One Megabyte = 1024 KiloBytes

Time was when a Meg was a lot of storage. It's not now. A floppy holds about 1.44mb, and most everyone has run out of space on a floppy before. On the other hand, this little essay is only ...3654 characters long now, including all the formatting and crap. So, a text only document a million characters long is pretty damn big. I dare you to type a million characters. I double mega dare you...
Anyway, now there is a GigaByte. Yep, 1024 Megabytes. And an average crappy system comes with 10Gb or better hard drive.
One GigaByte = 1024 MegaBytes

Wow, that's sick. I don't even care to figure out how many bits that is! Me neither.
But checkit, there is more. Becuase now there is the TerraByte, which is 1024 GigaBytes. A writeable CD holds about 650 Mb, which is like 0.65Gb. Sabby?
One TerraByte = 1024 GigaBytes

(I think there is another one, but I don't care to know for sure.)

 

Access Speed:

RAM Access speed is measured in time. Typcally nanoseconds

Right now if I open up my computer and get my RAM (Random Access Memory) out, it's 8 NanoSecond pc 133 SDRAM ram.
nan·o·sec·ond (nn-sknd)
n. Abbr. ns or nsec
One billionth (10-9) of a second.

That means it's takes the RAM 8 billionths of a second to figure out if a circuit is open or closed, representing Zero or One.

Processor Speed:

Chip speed is based on hertz. Mega Herts usually abbreviated as Mhz. Hertz is defined as:

hertz (hûrts)
n. pl. hertz Abbr. Hz
A unit of frequency equal to one cycle per second. See table at measurement.

MegaHertz is one million cycles per second.

By opening up the same compter, and looking at the processor (or CPU), I see that it's a 1200mhz chip. That means it does it's thing 1.2 billion times every second, whether it wants to or not. That's a hectic schedule.

 

5571 Characters. Not even close.