چهارشنبه 12 آبان 1389

FLOPPY DISK DRIVE

   نوشته شده توسط: داریوش زمانی    

در این مقاله شما با ساختمان فلاپی دیسکتها بیتشرآشنا می شوید. راستی آن سالها فلاپی دیسکتهای تری ام 3M و ماکسل و ورباتین بیتشر استفاده میشد و در مقاله های بعدی در مورد فلاپی دیسک درایو صحبت می کنم .

راستی شما میدانید روش درست وراد کردن فلاپی در فلاپی دیسک درایو چگونه است


A reusable magnetic storage medium introduced by IBM in 1971. It was called a floppy because the first varieties were housed in bendable jackets. Woefully undersized for today's use, it is no longer standard equipment on computers. However, until the early 1990s, the floppy was the primary method for distributing software and was widely used for backup. By the mid-1990s, it had mostly given way to the CD-ROM.

A Circle of Double-Sided Magnetic Tape
Also called a "diskette," the floppy is a flexible circle of magnetic material similar to magnetic tape, except that both sides are used. The drive grabs the floppy's center and spins it inside its housing. The read/write head contacts the surface through an opening in the plastic shell or envelope. Floppies rotate at 300 RPM, which is from 10 to 30 times slower than a hard disk. They are also at rest until a data transfer is requested. Following are the three types developed, from newest to oldest, and their raw, uncompressed storage capacity.

                 Final
                 Storage
 Housing         Capacity   Capacity Range  Creator

 3.5" rigid      1.44MB     400KB - 1.44MB  Sony
 3.5" rigid      2.88MB     (See ED.)       IBM
 5.25" flexible  1.2MB      100KB - 1.2MB   Shugart
 8" flexible     500KB      100 - 500KB     IBM


Although floppy disks look the same, what is recorded on them determines their capacity and compatibility. Every new floppy must be "formatted," which records the sectors on the disk that hold the data. See format program, magnetic disk and high-capacity floppy.


FLOPPY.GIF


Floppy Formats

Although ubiquitous in their heyday, the 5.25" diskette was surpassed by the 3.5" disk in the 1980s, which gave way to the CD-ROM in the 1990s.




FLOPPY35.GIF


Anatomy of a Floppy

There is quite a bit inside a floppy disk considering they can be purchased for less than a quarter.





_KAYPRO.JPG


A Floppy-Based Computer

Floppy-based computers such as this Kaypro portable were the rage in the late 1970s and early 1980s. You typically booted the computer with the operating system in the first drive and saved your data on the floppy in the


cialis buy online
شنبه 2 آذر 1398 04:16 ق.ظ
Do you have a spam problem on this site; I also
am a blogger, and I was wanting to know your situation; we have developed some nice procedures and
we are looking to swap strategies with other folks, why not shoot me an email
if interested.
canadian pharmacy online
پنجشنبه 9 آبان 1398 06:06 ق.ظ
canadian pharmacy http://canadianpharmacyworldwide.com/ canadian pharmacy !
I am no longer positive the place you are getting your info, but good topic. I needs to spend a while learning more or working out more. Thank you for wonderful info I was searching for this information for my mission.
ssd
پنجشنبه 21 شهریور 1398 03:20 ق.ظ
It is not my first time to visit this site, i am browsing this web
site dailly and get good data from here everyday.
liquid cialis
دوشنبه 3 تیر 1398 01:16 ق.ظ

You actually explained this very well!
pastillas cialis y alcoho low dose cialis blood pressure if a woman takes a mans cialis cialis flussig ou acheter du cialis pas cher low cost cialis 20mg brand cialis nl cialis dose 30mg cialis for sale in europa generic low dose cialis
buy cialis soft online
یکشنبه 2 تیر 1398 09:34 ق.ظ

Tips certainly considered..
cialis great britain cialis kamagra levitra viagra cialis levitra cialis 10 doctissimo viagra cialis levitra cialis prezzo in linea basso cialis soft tabs for sale cialis generic tadalafil buy cialis prezzo in linea basso cialis wir preise
buy original cialis
شنبه 1 تیر 1398 06:53 ب.ظ

You said it very well.!
cialis therapie buying cialis on internet cialis kaufen bankberweisung cialis 5 mg buy cialis diario compra warnings for cialis we recommend cheapest cialis buying cialis in colombia rezeptfrei cialis apotheke cialis cuantos mg hay
http://masocus.strikingly.com/
شنبه 1 تیر 1398 01:54 ق.ظ

Wow lots of very good tips.
we choice free trial of cialis cialis billig comprar cialis 10 espa241a we like it cialis soft gel generic for cialis buy cialis online cialis 5 mg funziona prezzo di cialis in bulgaria click here to buy cialis cialis authentique suisse
http://scattirec.strikingly.com/
جمعه 31 خرداد 1398 09:41 ق.ظ

Awesome write ups, Thank you.
cialis prezzo di mercato cialis vs viagra tadalafil 20 mg tadalafil 10 mg cialis 30 day trial coupon viagra vs cialis 40 mg cialis what if i take cialis 5mg billiger recommended site cialis kanada generic cialis at the pharmacy
cialis 20 mg usa
چهارشنبه 29 خرداد 1398 10:45 ب.ظ

Appreciate it. A lot of data.

american pharmacy cialis cialis generique 5 mg cialis online deutschland cialis 5 mg effetti collateral wow look it cialis mexico viagra or cialis cialis prices cialis dosage recommendations cialis qualitat overnight cialis tadalafil
http://profalar.strikingly.com/
چهارشنبه 29 خرداد 1398 06:15 ق.ظ

Great knowledge. Thanks!
we recommend cialis info cialis patentablauf in deutschland cialis flussig dose size of cialis buy cialis online cheapest 40 mg cialis what if i take import cialis how do cialis pills work acheter du cialis a geneve cialis arginine interactio
http://realraphy.strikingly.com/
سه شنبه 28 خرداد 1398 07:41 ق.ظ

Information certainly utilized..
cialis prices in england we like it cialis soft gel cialis online nederland cialis daily cialis generic tadalafil buy cialis tablets australia cialis dosage where do you buy cialis generic low dose cialis cialis tablets
Cialis canada
دوشنبه 27 خرداد 1398 04:46 ب.ظ

Nicely put, Cheers!
cialis kamagra levitra buy cialis online nz tadalafilo canadian cialis opinioni cialis generico precios de cialis generico cialis 5 mg buy generico cialis mexico prezzo cialis a buon mercato cialis coupon
http://maizamis.strikingly.com/
یکشنبه 26 خرداد 1398 12:08 ب.ظ

Fantastic information. Thank you!
click here to buy cialis side effects of cialis cialis online holland we like it cialis price acquistare cialis internet cialis savings card side effects of cialis cialis rezeptfrei sterreich miglior cialis generico cialis 100mg suppliers
http://fiethocof.strikingly.com/
شنبه 25 خرداد 1398 10:18 ب.ظ

Excellent tips. Appreciate it!
cialis prezzo di mercato does cialis cause gout enter site very cheap cialis cialis 100mg suppliers cialis usa cost cialis 20mg prix en pharmacie deutschland cialis online cialis generic generic cialis at walmart order cialis from india
Buy generic cialis
جمعه 24 خرداد 1398 06:14 ب.ظ

Kudos. Plenty of forum posts!

cialis rckenschmerzen buy brand cialis cheap cialis pills in singapore cialis kamagra levitra cialis online holland buying cialis in colombia cialis professional from usa compare prices cialis uk viagra vs cialis vs levitra cialis dosage
http://bertdatab.strikingly.com/
جمعه 24 خرداد 1398 03:33 ق.ظ

This is nicely expressed. !
side effects of cialis cialis 20 mg best price generic for cialis click here to buy cialis tadalafil cialis 5 mg effetti collateral only best offers 100mg cialis generic for cialis cialis dose 30mg viagra or cialis
http://vecardsuc.strikingly.com/
پنجشنبه 23 خرداد 1398 01:42 ب.ظ

Valuable info. Many thanks!
buy name brand cialis on line we like it cialis price buy cialis online cheapest cialis online deutschland trusted tabled cialis softabs cialis generic tadalafil buy cialis dosage recommendations cialis super acti american pharmacy cialis cialis italia gratis
http://cufleress.strikingly.com/
چهارشنبه 22 خرداد 1398 11:54 ب.ظ

You actually explained this very well!
cialis online nederland cialis generisches kanada cialis 20mg preis cf generic cialis tadalafil cialis side effects we like it cialis soft gel cialis para que sirve 40 mg cialis what if i take cialis tadalafil online venta cialis en espaa
http://cialisvie.com/
سه شنبه 21 خرداد 1398 02:30 ق.ظ

Wow a good deal of very good knowledge!
viagra or cialis only best offers cialis use order generic cialis online prix de cialis we use it cialis online store price cialis per pill cialis generique tadalafilo cialis e hiv il cialis quanto costa
http://cialisvie.com/
یکشنبه 19 خرداد 1398 08:57 ب.ظ

Thanks a lot, Quite a lot of postings.

enter site 20 mg cialis cost weblink price cialis cialis super acti cialis 20mg prix en pharmacie cialis daily dose generic tadalafil generic il cialis quanto costa cialis taglich how do cialis pills work cialis pills in singapore
cialisvie.com
شنبه 18 خرداد 1398 03:25 ب.ظ

Nicely put. Many thanks!
we like it cialis soft gel cialis price in bangalore rx cialis para comprar cialis generico in farmacia warnings for cialis cialis alternative cialis generic availability cialis 30 day trial coupon cialis official site cost of cialis per pill
buy drugs canada
شنبه 4 خرداد 1398 06:13 ق.ظ
natural medicines ed http://viagralim.us natural medicines ed !
If you want to grow your familiarity only keep visiting this website and be updated with the hottest news update posted here.
http://tumorzentrum-zwickau.de/inhalt/geschichte
چهارشنبه 4 اردیبهشت 1398 10:38 ب.ظ
ブランド スーパー コピー_スーパー コピー 通販_スーパー ブランド コピー_ブランド コピー 優良店
http://canadianpharmacyes.com/
شنبه 24 فروردین 1398 10:10 ق.ظ

This is nicely expressed. !
canadian mail order pharmacies pharmacy canada 24 canadianpharmacy rx from canada buy vistagra usa canadian pharmacycanadian pharmacy Canadian Pharmacy USA buy viagra now pharmacy canada online pharmacies
buy cialis pills
جمعه 16 آذر 1397 01:35 ب.ظ

You actually stated it fantastically.
brand cialis nl tadalafil 20mg cialis for sale in europa cialis taglich buy cialis cheap 10 mg we choice free trial of cialis cialis price thailand we use it 50 mg cialis dose generic cialis pro cialis bula
buy generic cialis pills
پنجشنبه 15 آذر 1397 06:25 ب.ظ

You actually explained it very well!
cialis generico lilly tadalafil tablets cialis online generic cialis review uk effetti del cialis cialis en mexico precio cialis coupons printable canadian discount cialis buying cialis in colombia tadalafil 5mg
Cialis generic
چهارشنبه 14 آذر 1397 10:46 ب.ظ

You revealed that effectively!
we like it cialis price acquisto online cialis recommended site cialis kanada cialis mit grapefruitsaft cialis tablets il cialis quanto costa can i take cialis and ecstasy calis we choice cialis pfizer india cialis reviews
buy cialis pills online
چهارشنبه 14 آذر 1397 07:34 ق.ظ

Thanks a lot! Good stuff.
ou trouver cialis sur le net cialis baratos compran uk cialis billig we like it cialis soft gel cialis 05 generic cialis at the pharmacy cialis coupons printable cialis generisches kanada cialis en mexico precio cialis venta a domicilio
Buy generic cialis
سه شنبه 13 آذر 1397 08:04 ب.ظ

You actually expressed it very well.
when can i take another cialis wow look it cialis mexico cialis with 2 days delivery enter site natural cialis cialis kaufen bankberweisung cialis coupon acquistare cialis internet we choice free trial of cialis viagra vs cialis cialis official site
buy cialis online best price
سه شنبه 13 آذر 1397 09:08 ق.ظ

Many thanks. Valuable information!
cialis tadalafil precios de cialis generico costo in farmacia cialis india cialis 100mg cost purchase once a day cialis cialis for daily use generic cialis pro achat cialis en itali cialis reviews prescription doctor cialis
 
لبخندناراحتچشمک
نیشخندبغلسوال
قلبخجالتزبان
ماچتعجبعصبانی
عینکشیطانگریه
خندهقهقههخداحافظ
سبزقهرهورا
دستگلتفکر
نمایش نظرات 1 تا 30
ساخت وبلاگ در میهن بلاگ

شبکه اجتماعی فارسی کلوب | ساخت وبلاگ صوتی صدالاگ | سوال و جواب و پاسخ | رسانه فروردین، تبلیغات اینترنتی، رپرتاژ، بنر، سئو | Buy Website Traffic