? 3.5 ????? ??????
? 5.5 ????? ????
?
??????
??? ?
???????? ????
???? ?????? ??? ? ???? ?? ???????????? ??????????? ??? ?
?????????
???? ? ????????? ?????.
?? ?????? ??? ?????? ????? ??????? ??? ?? 1980?? ??? ??? ?? 1990?? ???? ??? ?????? ??? ? ???? ?? ?????????
????????? ?????????
???
????????? ??????????
, ???? ?? ?????????? ????. ?? ??? ??????? ??? ????? ??????, ?? ????? ?????? ???????? ??????? ??? ? ????? ??? 5.5 ????? ??? ???????? KB360 ??? 1.2MB, ????? ?????? ??? ???????? ??????? ??? ? ????? ??? 3.5 ????? ??? ?? ??????? ??? 750KB ??? 1.44MB.
????? ?????? ?????? ?? ???? ???????, ????? ??? ???? ?? ??????????????? ?????? ???? ??? ????? ?????????, ???
DVD
???? ??????? ??? ????? 4.7GB. ??? ???????????? ???? ??? ?? ??? ????? ???? ??? ??? ??????
???????
?? ??????
?????
??? ?????????? ?????????.
| ??????????
|
?????????
|
| 1971
|
|
| 1972
|
1.5Mbit
|
| 1973
|
3.1Mbit - ???????????
|
| 1976
|
6.2Mbit - ???????????
|
| 1976
|
110KB
|
| 1977
|
1.2MB
|
| 1978
|
360KB
|
| 1982
|
264KB
|
| 1982
|
|
| 1984
|
720KB
|
|
|
720KB
|
| 1982
|
1.2MB
|
| 1984
|
|
| 1985
|
|
| 1985
|
|
| 1986
|
|
| 1987
|
1.44MB
|
| 1987
|
2.88MB
|
| 1991
|
21MB
|
| 1996
|
120MB
|
| 1997
|
240MB
|
| 1998/99
|
150/200MB
|
