Exposure to computers all day, inevitably with a variety of measurement units to deal with, especially data, but you know bit, Byte, KB, GB, TB and so on all means how much data? Have you heard of EB, ZB, YB?
Bit (bit) is the initials of binary digit, the unit that measures information, and the smallest unit that represents the amount of content, only 0 or 12 binary states. 8 bits make up a byte (byte), ca
In the computer newspaper, I saw that ABN Amro's 20 data centers have about 7PB of disk and more than 20PB of tape storage, and the annual 50%~70% growth of storage,
So I want to see how big the PB is, and calculate the 27PB size of the hard disk about 400,000 80.
1Byte = 8 Bit (0,1)
1 KB = 1,024 Bytes (size of a shortcut)
1 MB = 1,024 KB = 1,048,576 Bytes (size
I learned the fread reading command and used the filesize function to compile the statistics file size function.
I learned the fread reading command and used the filesize function to compile the statistics file size function.
Use the filesize () function command to calculate the file size. The value 1 must be an output of GB, MB, KB, and B. 2. the order of m
Using the FileSize () function command to achieve file size statistics, requires: 1, in GB, MB, KB, b in one output; 2. The order of magnitude must be greater than 1 and less than 1024, and two decimal places are reserved;
Commenced construction:
Copy CodeThe code is as follows:
$len = FileSize ("1.RMVB");
$i = 4;
while ($i) {
if ($out = $len/pow (1024x768, $i))
Using the FileSize () function command to achieve file size statistics, requires: 1, in GB, MB, KB, b in one output; 2. The order of magnitude must be greater than 1 and less than 1024, and two decimal places are reserved;
Commenced construction:
Copy the Code code as follows:
$len = FileSize ("1.RMVB");$i = 4;while ($i) {if ($out = $len/pow (1024x768, $i)) >1.0
Php obtains the file size and converts the file size to gb, mb, and kb. this code uses the php program to obtain the file size and displays the file size as gb, mb, the code of kb code is very intelligent. the code is as follows:
Use the filesize () function command to calculate the file size. The value 1 must be an output of GB, MB, KB, and B. 2. the order of magnitude must be greater than 1 and less than 1024, and two decimal places must be retained;
Start:
Copy codeThe Code is as follows: $ len = filesize ("1. rmvb ");
$ I = 4;
While ($ I ){
If ($ out = $ len/pow (1024, $ I)> 1.0
PHP implements the original method of converting Byte to KB, MB, GB, and TB.
This example describes how to convert the number of bytes in PHP to KB, MB, GB, or TB. We will share this with you for your reference. The details are as
Use the FileSize () function command to implement statistics for file size, requiring: 1, one output in GB, MB, KB, B, 2. The order of magnitude must be greater than 1 less than 1024 and retain two decimal places;
Commencement of construction:
Copy Code code as follows:
$len = FileSize ("1.RMVB");
$i = 4;
while ($i) {
if ($out = $len/pow (10
1bit=1 bit 2 binary information 1B (byte byte)1KB (kilobyte KB) =2 (Ten) b=1024b=2 (ten) B;1MB (Megabyte MBytes) =2 (Ten) kb=1024kb=2 B; equivalent to the content of a short story.1GB (Gigabyte gigabytes) =2 (mb=1024mb=2) B; the equivalent of a short story.1TB (Trillionbyte) =2 (gb=1024gb=2) B; equivalent to the music
The smallest basic unit is byte should not have many people do not know, the following first in order to give all units
Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB
I only know the top five, and most people know it, according to the rate of 1024 calculation
1tb=2 's 40-Time Square byte=1099511627776 Byte
1pb=2 's 50-time Square Byte=1125899906842624byte
1eb=2 60-
equals 8 bits (1byte=8bit). Eight-bit binary number minimum is 00000000, the maximum is 11111111; usually 1 bytes can be stored in an ASCII code, 2 bytes can hold a Chinese character GB code.3, the wordWhen a computer is processing data, the length of time it accesses, processes, and transmits is called word. A word is usually made up of one or more bytes (usually the integer bits of bytes). For example, the word 286 microcomputer consists of 2 bytes
Reprint Source: http://blog.csdn.net/liulin_good/article/details/7212355
What are the storage units of a computer?Computer storage units are generally used bit, Byte, KB, MB, GB, TB, PB, EB, ZB, BB to express,We often call a byte short as B, the KB abbreviation K. What a few k, what a few B.
Second, what is their con
BYTE (byte) is B: A byte is made up of 8-bit binary digits (1 byte = 8 bit). Byte is the most common base unit in the information store.
An English letter (case-insensitive) occupies a byte of space, a Chinese character occupies two bytes of space.Symbol: English punctuation 2 is a byte, Chinese punctuation is two bytes.
A binary numeric sequence, as a digital unit in a computer, typically a 8-bit binary number,If an ASCII code is a byte, the conversion of such units is:
1000 gigabyte (tb,kil
1, first, K and K case is no difference (kilo), M and M is the same
2, B is a bit, that is, a bit, B is a byte, that is, Byte, 8bit =1byte, a letter a byte, a man two bytes
3, 1024B =1KB,1024KB=1MB,1024MB=1GB,1024GB=1TB
Answer 1: Why 200M Broadband in the network transmission speed also did not reach 200M. Because b in 200Mbps is lowercase, equivalent to 25MB PS
Q-2:KB,MB,
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