1 byte means how many digits

 
 
conversion: bit and byte (Bits and bytes)
 
1 byte is 8 bits or 1 B = 8 b
 
Just enter the known number in the correct line.
The conversion results are displayed immediately.
When entering a decimal, the is Point to use.
You don't need a calculation button.

Warning: don't give them exact number of a calculated answer again.

The word bit should be derived from "binary digit" (digit = finger, digit, number, bit = binary number)
and bytes come from nothing other than "bit times eight" (B-eight = byte).

In January 1999 the International Electrotechnical Commission im
Addendum to IEC 60027-2 a new standard as prefixes kibi- (kibibyte), mebi-,
gibi-, etc. and the symbols Ki, Mi, Gi, etc. introduced to the multiples of
Binary numbers from being confused with the SI multiples of the powers of ten
to exclude. Kibibit sounds a little getting used to.
This is the new standard, but hardly anyone wants to use it:

descriptionsymbolbefore standardization in 1998 SurnameAfter standardization
bitb 1bit  =1 bitbit 1b  =1 bit
byteB. 1B.  =8 bitbyte 1B.  =8 bit
kilobitkbit / kb 1kbit  =1024 b = bitkilobit 1kb  =1000 b
kibibitKibit    kibibit 1Kib  =1024 b
kilobytekB 1kB  =1024 B = bytekilobyte 1kB  =1000 B
kibibyteKiB    kibibyte 1KiB  =1024 B
megabitMbit 1Mbit  =1024 kbmegabit 1Mb  =1000 kb
mebibitMibit / Mib    mebibit 1Mib  =1024 kib
megabyteMB 1MB  =1024 kBmegabyte 1MB  =1000 kB
mebibyteMibit / MiB    mebibyte 1MiB  =1024 KiB
gigabitGbit / Gb 1Gbit  =1024 Mbgigabit 1Gb  =1000 MB
gibibitGive / give    gibibit 1Give  =1024 MiB
gigabyteGB 1GB  =1024 MBgigabyte 1GB  =1000 MB
gibibyteGiB    gibibyte 1GiB  =1024 MiB
terabyteTB 1TB  =1024 GBterabyte 1TB  =1000 GB
tebibyteTiB    tebibyte 1TiB  =1024 GiB
petabytePB 1PB  =1024 TBpetabyte 1PB  =1000 TB
pebibytePiB    pebibyte 1PiB  =1024 TiB
exabyteEB 1EB  =1024 PBexabyte 1EB  =1000 PB
exbibyteEg    exbibyte 1Eg  =1024 PiB
zettabyteE.g. 1E.g.  =1024 EBzettabyte 1E.g.  =1000 EB
zebibyteZiB    zebibyte 1ZiB  =1024 egg
yottabyteYB 1YB  =1024 ZByottabyte 1YB  =1000 ZB
yobibyteYiB    yobibyte 1YiB  =1024 ZiB

The following designations were published in IEC standard 60027-2 in December 1998
(bi stands for binary), but have not yet really caught on in practical use:

1 Kibibyte [KiB] = 1024 = 210 byte
1 Mebibyte [MiB] = 1 048 576 = 220 byte
1 Gibibyte [GiB] = 1 073 741 824 = 230 byte
1 tebibyte [TiB] = 1 099 511 627 776 = 240 byte
1 pebibyte [PiB] = 1 125 899 906 842 624 = 250 byte
1 Exbibyte [EiB] = 1 152 921 504 606 846 976 = 260 byte
1 zebibyte [ZiB] = 1 180 591 620 717 411 303 424 = 270 byte
1 Yobibyte [YiB] = 1 208 925 819 614 629 174 706 176 = 280 byte
1 Nobibyte [NiB] = 1 237 940 039 285 380 274 ​​899 124 224 = 290 byte
1 dobibyte [DiB] = 1 267 650 600 228 229 401 496 703 205 376 = 2100 byte

Calculation: transmission rates and bandwidth

Byte = the common information measure unit

bit = the common data transfer unit

1 kilobit = 1 000 bits
1 megabit = 1 000 000 bits

Files on the hard drive are in kilosbyte calculated, but transfer rates in kilosbit.
In addition, bits and bytes can be added or removed using transmission parameters.

Conclusion: A 56k modem = 56,000 bits needs = 458,753 bits to transmit a 56k file
not 1 second, but at least 8.2 seconds.
This is confusing and must always be taken into account when calculating transmission rates.

Rule of thumb: Kbyteof the file / seconds = transfer rate.

connectionTheoretical
Rate in kBit
Optimal
Rate in kByte
Most likely
Rate in kByte
14.4 modem 14.4 kb / s 1.2 kB / s 1 kB / s
28.8 modem 28.8 kb / s 2.4 kB / s 2 kB / s
33.6 modem 33.6 kb / s 3 kB / s 2.5 kB / s
56k modem 53 kb / s 4.8 kB / s 4 kB / s
Single ISDN 64 kb / s 6 kB / s 5 kB / s
Dual ISDN 128 kb / s 12 kB / s 10 kB / s
DSL - light 384 kb / s 46 kB / s 38 kB / s
DSL1024 kb / s 125 kB / s 90 kB / s
DSL2048 kb / s 250 kB / s 180 kB / s
DSL3072 kb / s 500 kB / s 360 kB / s
T11.54 Mb / s 150 kB / s 50 kB / s
Cable modem 6 Mb / s 768 kB / s 615 kB / s
Intranet / LAN 10 Mb / s 1280 kB / s 1024 kB / s
100base-TLAN 100 Mb / s12800 kB / s10240 kB / s
WLAN - Home 54 Mb / s 6912 kB / s 2765 kB / s +)
GBit LAN1000 Mb / s128000 kB / s96000 kB / s *)

+) With WLAn, maximum data rates of around 40% - 50% of the line capacity are achieved.
*) The value is heavily dependent on the hardware used (hard drive, network card connection ...)
A home PC may reach 20,000 - 45,000 kB / s (~ 20 - 45 MB / s) here

... this also applies to incorrect data.

Common speeds:
GSM 9.6 Kb corresponds theoretically to 1.2 KB download / second
Analogue 56 Kb corresponds theoretically to 7 KB download / second
ISDN 64 KB corresponds theoretically to 8 KB download / second
ISDN channel bundling 124 KB corresponds theoretically to 15.5 KB download / second
Cable / ADSL 256 KB corresponds theoretically to 32 KB download / second
Cable / ADSL 512 KB corresponds theoretically to 64 KB download / second
Cable / ADSL 1024 Kb corresponds theoretically to 128 KB download / second

The effective speed depends on many parameters: the hardware, the
Operating system, the provider, the network load, the connection of the target server, etc.

The new IEC standard
SurnameBit byte 
bitbit0 or 1
byteB.8 bits
kibibit (binary)Kib1024 bits
kilobit (decimal)kb1000 bits
kibibyte (binary)KiB1024 bytes
kilobyte (decimal)kB1000 bytes
megabit (decimal)Mb1000 kilobits
mebibyte (binary)MiB1024 kibibytes
megabyte (decimal)MB1000 kilobytes
gigabit (decimal) Gb1000 megabits
gibibyte (binary)GiB1024 mebibytes
gigabyte (decimal)GB1000 megabytes
terabit (decimal)Tb1000 gigabits
tebibyte (binary)TiB1024 gibibytes
terabyte (decimal)TB1000 gigabytes
petabit (decimal)Pb1000 terabits
pebibyte (binary)PiB1024 tebibytes
petabyte (decimal)PB1000 terabytes
exabit (decimal)Eb1000 petabits
exbibyte (binary)Eg1024 pebibytes
exabyte (decimal)EB1000 petabytes

In data communication, the metric definition is a kilobyte
(1000 bytes per kilobyte) common and correct. The binary definition of a
Kilobytes (1024 bytes per kilobyte) are used in the fields of data storage
(Hard drive, memory) used, but not for bandwidth representation.

Storage capacity of bits and bytes
 bitbytekibibytemebibytegibibyte
bit10.1250.0001220703121.192092895×10-71.16415321875×10-10
byte810.00097656259.53674316×10-79.31322575×10-10
kibibyte8 1921 02410.00097656259.53674316×10-7
mebibyte8 388 6081 048 5761 02410.0009765625
gibibyte8 589 934 5921 073 741 8241 048 5761 0241
tebibyte8 796 093 022 2081 099 511 627 7761 073 741 8241 048 5761 024
pebibyte9 007 199 254 740 9901 125 899 906 842 6241 099 511 627 7761 073 741 8241 048 576
exbibyte9 223 372 036 854 780 0001 152 921 504 606 846 9761 125 899 906 842 6241 099 511 627 7761 073 741 824
zebibyte9 444 732 965 739 290 000 0001 180 591 620 717 411 303 4241 152 921 504 606 846 9761 125 899 906 842 6241 099 511 627 776

CD: 2 · 44100 · 16 = 1.4112 Mb / s: 8 b / B = 176.4 kb / s
2 · 44100 · 20 = 1.764 Mb / s: 8 b / B = 220.5 kb / s
2 · 44100 · 24 = 2.1168 Mb / s: 8 b / B = 264.6 kb / s
2 · 48000 · 24 = 2.304 Mb / s: 8 b / B = 288.0 kb / s

These terms have not yet become fully established:
Units after Amendment 2 - International Standard IEC 60027-2

Prefixsymbolpowerfactor
YottaY10241 000 000 000 000 000 000 000 000
ZettaZ10211 000 000 000 000 000 000 000
Exbiegg2601 152 921 504 606 846 976
ExaE.10181 000 000 000 000 000 000
Pebipi2501 125 899 906 842 624
PetaP.10151 000 000 000 000 000
TebiTi2401 099 511 627 776
TeraT10121 000 000 000 000
GibiGi2301 073 741 824
GigaG1091 000 000 000
MebiWed2201 048 576
MegaM.1061 000 000
KibiKi2101 024
kilok1031 000
Reference unit100= 1 1

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