HDDs introduced in 1956 as data storage for an IBM accounting computer were originally developed for use with general purpose computers
HDDs record data by magnetizing ferromagnetic material directionally, to represent either a 0 or a 1 binary digit. They read the data back by detecting the magnetization of the material. A typical HDD design consists of a spindle that holds one or more flat circular disks called platters, onto which the data is recorded.
kl eli foq copy paste mn Wikipedia
nw ana btklm mn 5brty sheno uhwa elHD
el HD ( Hard Disk ) 3bara 3n a storage device mthl lflash bs bs akbr mnh eb 5 aw 4 mrat 3la 7sb elno3
fe bo 100 GB , 120 GB , 250 GB ako 1T hatha double 250 GB 4 marat
o nw 6l3 2T
ps: 2 and 1 T hathela lazm electricity supply lhom
el HD mwgod da5l ay laptop ytsyv feh el operating sys. o kl our stuff.
benefits of the external HD :
- we can store a huge size of data such as movies or pictures
- The HD we may use it for backups
- We can free up our laptop storage space and store all of our things in the HD
- Fast transfer between the HD and the laptop and better than DVD or CD
- The HD store the data without the need for a constant electricity supply
uhwaa 3eba waayed 7saaas
mn y6eee7 5alaa9 ra7 3lekom kl eli feeh
yama kan 3ndy exteranalat mtrosa 9wry o aflaaamy eli wayed wayed t3bt 3lehom
fag2a 9ar error bad sectors
o ena maaye6la3 lma arkb 3la my laptop
ebhal7ala lazm nswy lh repair bad sectors OR recovery
sa3at tathb6 sa3at la2
eli 3ndh mshkla m3 el HD yqoli ana 9rt 5bera mn balaweyah :P
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