Kids web site - Because most disks store huge numbers of bytes,
Because most disks store huge numbers of bytes, nobody ever bothers withsaying things like I have 20,545,642,321 bytes of hard disk space available. It smuch easier to round these big numbers off to the nearest thousand, million, or billion. And we use some short names and abbreviations for those words, too, as shown in Table 20-1. Table 20-1Computer Names and Abbreviations for Large NumbersBytesNameAbbreviationWordSpoken Slang1,000ThousandKB or KKilobytekay1,000,000MillionMB or MMegabytemeg1,000,000,000BillionGB or GGigabtyegig1,000,000,000,000TrillionTB or TTerabyteteeThe numbers in Table 20-1 are rough. A kilobyte is actually 1,024 bytes. is 1,048,576 bytes (1,024 x 1,024). But if you just remember thateach new word adds another ,000to the previous number, that s closeenough. Every disk has an overall capacity, which is the number that describes howmany bytes the disk can hold. Your hard disk already has lots of files on it most of the files that make up Windows XP and your installed programs. Eachof those files takes up space. Every document on your hard disk also takes upspace, used space. Any space that isn t already used is yours to do with as youplease. We call that free spaceor available space. To find out the capacity ofyour hard drive, and how much hard disk space you have available (freespace), follow these steps: STEPS:Find Out How Much Hard Disk Space You Have1.If you haven t already done so, open your My Computer folder (clickthe Start button and choose My Computer). 2.Right-click the icon for your hard disk and choose Properties. 3.If the General tab isn t visible automatically, click the General tab. The pie chart that appears (Figure 20-16) shows you, at a glance, how muchhard disk space is currently being used and how much is still available. Mostlikely, you ll have billions of bytes (gigabytes) of each. What that works out toin terms of things in the real world is something you really have to be flexiblein estimating. But Table 20-2 shows some examples of what one gigabyte (1GB) represents in terms of what you can store, with some empty columns you canfill in for yourself if you like.
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