SPAN.COM
Home CheckOut Log In/Register Log Out About Us Contact Us Call Us Privacy policy
Why People Choose Us?

14 Day Return Guarantee

If you change your mind, you can return all or part of your order.


Next Day Delivery

Order before 4pm*, and in-stock products will be with you the next day. (Or Saturday. Or even Same Day).


WorldWide Deliveries

Wherever you are in the world, we can get your order to you at high speed.


SpanStor Build & Test

Our free service helps you choose the right NAS and Drives, then makes sure it is built & ready to use as soon as you get it.


Professional Live Support

We are here to assist you - before, during and after your purchase, by phone, email or live chat.


SPAN.COM Local Map:
2.9 Miles from New Malden (KT3). 3.2 Miles from Kingston Upon Thames (KT). 3.7 Miles from Esher (KT10). 5.9 Miles from Hampton (TW12). 2.8 Miles from Thames
Ditton (KT7). 7.1 Miles from Richmond (TW9). 5.9 Miles from Wimbledon (SW19). 5.7 Miles from Teddington (TW11). 10.8 Miles from Earlsfield (SW18). 8.3 Miles from Mitcham (CR4). 12.7 Miles from Croydon (CR).
SPAN.COM local MAP

www.facebook.com/SPANdotCOMwww.twitter.com/SPANdotCOMwww.youtube.com/user/SPANdotCOMGoogle+

Pay by Paypal pay by card

© 1994-2018 Worldspan Communications Ltd
Call us on [+44] (0)20 8288 8555

Privacy policy

Terms and conditions


We use cookies to give you the best experience possible. By continuing to navigate through this site you consent to the use of cookies in accordance with our Cookies Policy

Mobile View / Desktop View




2.5" PATA Drives

call for support!
Sort By

A hard disk drive (HDD) is a data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than just sequentially. An HDD consists of one or more rigid ("hard") rapidly rotating discs (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces.

Introduced by IBM in 1956, HDDs became the dominant secondary storage device for general purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and PCs. More than 200 companies have produced HDD units, though most current units are manufactured by Seagate, Toshiba and Western Digital. Worldwide revenues for HDDs shipments are expected to reach $38 billion in 2012, up about 19% from $32 billion in 2011.

The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion bytes). Typically, some of an HDD's capacity is unavailable to the user due to use by the file system and the computer operating system, and possibly inbuilt redundancy for error correction and recovery. Performance is specified by the time to move the heads to a file (Average Access Time) plus the time it takes for the file to move under its head (average latency, a function of the physical rotational speed in revolutions per minute) and the speed at which the file is transmitted (data rate).

The two most common form factors for modern HDDs are 3.5-inch in desktop computers and 2.5-inch in laptops. HDDs are connected to systems by standard interface cables such as SATA (Serial ATA), USB or SAS (Serial attached SCSI) cables.


Parallel ATA (PATA), originally AT Attachment, is an interface standard for the connection of storage devices such as hard disks, floppy drives, and optical disc drives in computers. The standard is maintained by X3/INCITS committee. It uses the underlying AT Attachment (ATA) and AT Attachment Packet Interface (ATAPI) standards.

The Parallel ATA standard is the result of a long history of incremental technical development, which began with the original AT Attachment interface, developed for use in early PC AT equipment. The ATA interface itself evolved in several stages from Western Digital's original Integrated Drive Electronics (IDE) interface. As a result, many near-synonyms for ATA/ATAPI and its previous incarnations are still in common informal use. After the introduction of Serial ATA in 2003, the original ATA was renamed Parallel ATA, PATA for short.

Parallel ATA cables have a maximum allowable length of only 18 in (457 mm). Because of this limit, the technology normally appears as an internal computer storage interface. For many years ATA provided the most common and the least expensive interface for this application. It has largely been replaced by Serial ATA (SATA) in newer systems.




This article is licensed under the GNU Free Documentation License. It uses material from the following Wiki article(s) :
* Hard_disk_drive
* Parallel_ATA

Buy 2.5" PATA Drives FREE ✓BUILD ✓RAID ✓TEST ✓BUSINESS QUOTES | SPAN.COM
☎Call for pricing 020 8288 8555 sales@span.com ✓Free Advice ✓Lowest Price often available

trustpilot review
SPAN.COM Trustpilot Reviews
With 761 reviews - 5 out of 5
761 reviews
"Black Friday" / "Cyber Monday" special prices are available on all orders made on SPAN.COM between 5PM on Thursday 22nd November 2018 and 23:59 on Monday 26th November 2018. Offers are available exclusively online, and exclude email, telephone and in-store orders. Discounts will not apply to any delivery charges. SPAN reserves the right to vary the terms of the offer or replace the offer at any time.


We use cookies to give you the best experience possible. By continuing to navigate through this site you consent to the use of cookies in accordance with our Cookies Policy


Unit 19,
Red Lion Business Centre,
Red Lion Road,
Tolworth, Surbiton,
Surrey,
KT6 7QD
England -UK

We recommend:
NAScompares.com HDDcompares.com SSDcompares.com Thunderboltcompares.com
SPAN.COM
New Malden
Kingston Upon Thames
Esher
Hampton
Thames
Ditton
Richmond
Wimbledon
Teddington
Earlsfield
Mitcham
Croydon
SPAN.COM local MAP

By using this website, you agree to our use of cookies to enhance your experience. Read more