ArticleslgStudy

computer science

SuperDrive

SuperDrive is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand SuperDrive rather than just read about it. In short: SuperDrive is the product name for a floppy disk drive and later an optical disc drive made and marketed by Apple Inc. The name was initially used for Apple's high-density floppy disk drive, and later for the internal CD and DVD drive integrated with Apple computers.

SuperDrive — main illustration
SuperDrive — illustration

Key takeaways

  • SuperDrive belongs to computer science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect SuperDrive to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of SuperDrive from memory before moving on to harder problems.

Reference excerpt

SuperDrive is the product name for a floppy disk drive and later an optical disc drive made and marketed by Apple Inc. The name was initially used for Apple's high-density floppy disk drive, and later for the internal CD and DVD drive integrated with Apple computers. In 2008, Apple introduced an external USB SuperDrive alongside the MacBook Air, which lacked a built-in optical drive. Apple stopped selling computers with built-in SuperDrives in 2016, and discontinued the USB SuperDrive in 2024.

Floppy disk drive

The term was first used by Apple Computer in 1988 to refer to their 1.44 MB 3.5 inch floppy drive. This replaced the older 800 KB floppy drive that had been standard in the Macintosh up to then, but remained compatible in that it could continue to read and write both 800 KB (double-sided) and 400 KB (single-sided) floppy disks, as well as the newer high-density floppies. This drive was also capable of reading and writing MS-DOS formatted disks and FAT12 file formats, using PC Exchange or other software, unlike the 400 KB and 800 KB drives. This was made possible as the SuperDrive now utilitized the same MFM (Modified Frequency Modulation) encoding scheme used by the IBM PC, yet still retained backward compatibility with Apple's variable-speed zoned CAV scheme and group coded recording encoding format, so it could continue to read Macintosh MFS, HFS and Apple II ProDOS formats on 400/800 KB disks. Introduced in 1988 under the Trademark name FDHD (Floppy Disk High Density), the subsequently renamed SuperDrive was known primarily as an internally mounted floppy drive that was part of the Macintosh computer; however, an external version of the drive was manufactured that came in a Snow White-styled plastic case.

While the external drive worked on both Apple's product lines, it was mainly intended for use on the Apple II series, for which Apple introduced in 1991 a slot-based interface called the Apple II 3.5 Disk Controller Card for Apple IIe and IIGS computers so they too could use 1.40 MB storage and read/write MS-DOS. The controller card as well as the external Superdrive were discontinued in June 1994. The SuperDrive cannot be used with the original four Mac models (Macintosh 128K through Macintosh Plus), as their disk controller (the IWM) doesn't support high density. The next two models to be released (Macintosh II & Macintosh SE (1987)) also shipped with that controller; a SuperDrive connected to them will behave as an 800 KB drive. These two models can be upgraded via the M0244 upgrade kit (which replaces the IWM disk controller with the SWIM) and gain full use of the SuperDrive. All later models shipped with the SWIM. The first Macintosh model to include a SuperDrive floppy drive was the Macintosh IIx (1988). Every Macintosh and PowerBook introduced from 1988 to 1997 (with the exception of the PowerBook 100, PowerBook Duo series, and PowerBook 2400c, which offered a proprietary external floppy drive as an option), had a built-in SuperDrive floppy drive. The last model to include one was the beige Power Macintosh G3 series, which was manufactured until January 1999. The PowerBook G3 1998 model (a.k.a. Wallstreet) had an optional floppy drive module. The PowerBook 190 series, PowerBook 5300 Series, PowerBook 3400c, and original PowerBook G3 shared the same interchangeable floppy drive module as a standard feature. The drive as mounted on PowerBooks lacked the auto-inject feature of Apple's initial desktop SuperDrive implementation, requiring the user to manually insert the disk all the way into the drive. The feature was dropped throughout the lineup during 1993–94. The PowerBook 1400 series also had a floppy drive module, but was incompatible with the other PowerBooks. The end of the SuperDrive coincides with the demise of Old World ROM Macs; with the advent of the New World ROM machines, Apple stopped offering internal floppy drives on all models. The SuperDrive is not supported in Mac OS X, not even on the few Old World ROM machines that can officially run OS X.

Internal CD and DVD drive

Once the use of floppy disks started declining, Apple reused the trademark to refer to the optical drives built into its Macintosh models, which could read and write both DVDs and CDs. The early 2001 release of the Power Mac G4 was the first Macintosh to include a SuperDrive. SuperDrives featured 6–24x write speeds and supported the DVD±R, DVD±RW, CD-R, and CD-RW formats along with all normal read-only media. Some drive models used as SuperDrives are capable of reading DVD-RAM; on these drives, the ability to write to these discs is disabled. Apple never offered a Blu-ray drive or supported playback of the format. DVD±R DL Dual Layer DVD did not come out until 2005 and was not supported on the SuperDrive until the release of early 2005 models of PowerMac G5 which came with updated SuperDrives which supported DL recording on DL media. Unlike tray-style disc holders which have an inner guide ring, slot-style drives will not work with MiniCD or MiniDVD discs (8 cm diameter instead of 12 cm) unless an 8 cm optical disc adapter is used, and extraction of the disc is difficult, requiring tweezers, use of a card with double-sided sticky tape, or complete disassembly of it. The MacBook Air, released on January 29, 2008, was the first Macintosh to not include a SuperDrive after it became standard across the line. Apple began phasing SuperDrives out across the Macintosh line with the Mac Mini in 2011, the MacBook Pro and iMac in 2012, and the Mac Pro in 2013. The 2012 13-inch MacBook Pro, which was discontinued on October 27, 2016, was the last Macintosh Apple sold that included a SuperDrive.

External CD and DVD drive

… excerpt ends here. Continue reading the full article.

Illustrations

SuperDrive: An external CD/DVD SuperDrive
An external CD/DVD SuperDrive
SuperDrive: Internal SuperDrive floppy drive on a Macintosh LC II
Internal SuperDrive floppy drive on a Macintosh LC II
SuperDrive: Apple II 3.5 Disk Controller Card & Apple SuperDrive
Apple II 3.5 Disk Controller Card & Apple SuperDrive
SuperDrive: An integrated SuperDrive shown on the right side of a MacBook Pro
An integrated SuperDrive shown on the right side of a MacBook Pro
SuperDrive: The packaging of the MacBook Air SuperDrive (later renamed USB SuperDrive)
The packaging of the MacBook Air SuperDrive (later renamed USB SuperDrive)

Worked examples

Example 1 — a first encounter with SuperDrive

Start with the simplest possible case. Write down what SuperDrive claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to SuperDrive before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about SuperDrive ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of SuperDrive

In research
SuperDrive appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses SuperDrive in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
SuperDrive is common in secondary-school and first-year university syllabi. It links to neighbouring topics Apple Inc. peripherals, DVD, Floppy disk drives, so understanding it makes those chapters shorter.
In everyday life
Look for SuperDrive outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study SuperDrive in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what SuperDrive means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain SuperDrive out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SuperDrive in simple terms?

SuperDrive is the product name for a floppy disk drive and later an optical disc drive made and marketed by Apple Inc. The name was initially used for Apple's high-density floppy disk drive, and later for the internal CD and DVD drive integrated with Apple computers.

Why does SuperDrive matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study SuperDrive?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on SuperDrive.

Tags

  • Apple Inc. peripherals
  • DVD
  • Floppy disk drives
  • Rotating disc computer storage media
  • Trademarks

Keep exploring