In the beginning, personal computers used cassette tape drives. Then came floppy drives, followed by hard drives. And then came removable media drives such as SyQuest, Bernoulli, and – perhaps best know of all – Zip.
As slaterry69 has pointed out, the drive is most like in NTFS while OS X uses HFS+, if you want the mac to write natively to that drive, you will need to (first save the data on the drive) format it to FAT so that both the Windows and OS X can write to it (but each individual file can be no larger than 4GB). Iomega's Home Media Network Hard Drive has a simple setup process, advanced features, and an easy-to-use interface. Of the home media servers currently on the market that are Mac friendly, the. If you want to solve the read-only disk issue without erasing, the simplest solution is to install an NTFS for Mac utility. There are a number of NTFS for Mac apps. One of the most powerful is iBoysoft NTFS for Mac, which offers a trial trail of its feature. Once installed, the app will mount your NTFS external drive with read-write mode.
Before Zip
Iomega had made a name for itself with its Bernoulli Box, a lower cost alternative to SyQuest drives with their hard disk platters. SyQuest had established itself with a 44 MB 5-1/4″ cartridge drive system using the same 130mm platters found in hard drives.
By contrast, Bernoulli cartridges had a floppy disk spinning at 3,000 rpm, using the Bernoulli Principle to pull the disk's surface toward the read-write head. Unfortunately, the original Bernoulli cartridge system used huge media, measuring about 8″ x 11″ (210 x 275 mm).
Bernoulli Box II used a smaller cartridge along with a drive that fit in a standard 5-1/4″ bay. Bernoulli drives were noted for their reliability, and they came in many different capacities.
Beyond Floppy Disks
Although Apple wasn't the first to use 3.5″ floppy disks, it was the first to standardize on them instead of the older, larger 5-1/4″ floppies. In the PC world, single-sided 3.5″ floppies held 360 KB of data, double-sided disks 720 KB. On Macs, the same disks stored 400 KB and 800 KB respectively.
High-density (HD) 3.5″ floppies arrived in 1987, and both PCs and Macs used them to store 1.4 MB of information. The same year IBM introduced its DSED (Double Sided Extended Density) 2.88 MB floppy drive and disks, which never caught on. The market needed a removable media drive with more capacity than floppies but at a much better price than SyQuest.
The Zip 100
Iomega brought its Zip drive and Zip disks to market in March 1995 with 100 MB capacity. Zip uses a cartridge a little larger and somewhat thicker than a 3.5″ floppy disk. It was also far faster than a floppy drive, which is part of what kept the competing LS-120 SuperDisk from catching on – it had higher capacity than Zip but was far, far slower. (Interestingly, SuperDisk began as an Iomega project that they ditched in favor of Zip. 3M acquired the technology from Iomega and brought it to market.)
With their relatively high capacity and low price (initially $20 per cartridge), Zip took off, selling nearly one million in 1995. A few Zip disks could back up most hard drives in 1995; one Zip disk could hold a bootable system plus diagnostics. Zip was also a great way to send files out to a service bureau.
Zip disks came preformatted for Macs or PCs, and either could be reformatted for the other platform using Iomega Tools.
A Word of Warning
The SCSI Zip drive allows you to choose one of two possible SCSI IDs, 5 or 6. SCSI ID 6 is rock solid, but SCSI ID 5 can have issues when other devices on the SCSI bus are moving a lot of data. Avoid using SCSI ID 5 if at all possible.
How Fast (or Slow) Is It?
In 2013, Lui Gough tested several different types of Zip drives on his AMD Sempton 3300+ powered PC running Windows XP SP3. Here are the average and maximum transfer rates by drive mechanism:
- ATAPI Zip 100: 1.0 MB/s avg., 1.4 Mb/s max
- USB Zip 100, bus powered: 0.7 MB/s avg., 0.8 MB/s max
- SCSI Zip 100: 0.6 MB/s avg., 0.7 MB/s max
- Parallel port Zip 100: 0.2 MB/s across the board
Cam Giesbrecht ran benchmark tests on his Mac Quadra 605, also comparing HD floppy and hard drive performance. His results:
- floppy disk, writes @ 61.6 KB/s, reads @ 78.6 KB/s
- SCSI Zip disk, writes @ 1084 KB/s, reads @ 1123 KB/s (50% higher than SCSI on PC)
- internal Quantum hard drive, writes @ 1497 KB/s, reads @ 1850 KB/s
- external Quantum hard drive, writes @ 1367 KB/s, reads @ 1367 KB/s
The SCSI Zip drive performs better on this Mac and the one tested by Lui Gough on his Windows PC, in part because Macs were optimized for SCSI drives in those days while PCs were optimized for ATA drives. The Zip shows itself to be a decent backup medium, writing data at 70-80% of the write speed of the two tested hard drives. Download rdp for mac.
As for the floppy, there is no comparison. Zip stores 70x as much data and runs about 15x as fast.
Finally, the Iomega Zip FAQ benchmarks Zip 100, SyQuest 44 (an older technology), and the hard drive in a 1989 Mac IIci, obtaining these results:
- hard drive: 119 KB/s random reads, 1099 KB/s 256K sequential reads, 71.1 KB/s random writes, 1216 KB/s 256K sequential writes
- Zip 100: 38.5 KB/s random reads, 1186 KB/s 256K sequential reads, 38.9 KB/s random writes, 1189 KB/s 256K sequential writes
- SyQuest 44: 37.3 KB/s random reads, 579 KB/s 256K sequential reads, 36.1 KB/s random writes, 579 KB/s 256K sequential writes
This seems to be comparing a 1989 vintage hard drive with two removable media options. Even an older hard drive outperforms Zip 100 and SyQuest 44 for random reads and writes, but the big surprise is that for 256 KB sequential reads, Zip beats the hard drive, while it takes a close second for 256 KB sequential writes, just behind the older hard drive.
Overall Zip had decent performance, especially compared to older hard drives. With contemporary mid-1990s hard drives, Zip would fall further behind yet still acquit itself nicely.
Lots of Options
Supported Platforms
As long as Iomega kept things simple, Zip continued to grow and grow. It supported most operating system of that era: How do you lock a mac.
- MS-DOS and Microsoft Windows, although Windows 7 and later will not work with parallel port drives
- Mac System 6 through Mac OS 9.2.2 plus OS X (System 6 requires an Iomega Drive version prior to 5.0, as does the Mac Plus)
- IBM OS/2
- AmigaOS 3.5 and later
- Oracle Solaris 8-11
- some Linux and BSD versions, although Zip is not universally supported
- some users have made SCSI Zip drives work with Apple II and Atari ST computers
Iomega Hdd Read Only On Mac Shortcut
Later versions of Zip supported 250 MB (launched December 1998) and 750 MB (August 2002) of storage. Zip drive sales began their decline in 1999 as CD-R and DVD-R grew in popularity, followed by the explosion in USB thumb drives.
Driver Downloads
- IomegaWare 4.0.2 for Windows 98, Me, 2000, and XP. Not compatible with Windows 95 or NT.
- Iomega Zip 100MB USB Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB Parallel Port Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB ATAPI Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB SCSI Drivers Download, Windows XP, Vista, 7, 8, and 10.
- IomegaWare 4.0.2 for Mac OS 8.6 or later, OS X 10.1-10.2.1. Drivers are not needed with OS X 10.4, 10.5, and 10.6.
- Zip driver 4.2 for Mac Plus running System 6
Interfaces
Zip drives were available in numerous interfaces, including:
Iomega External Hard Drive Software Download
- IDE, an early ATA standard that does not support ATAPI commands
- ATAPI, a later version of ATA specifically for removable media; Zip 100, 250, and 750
- SCSI, internal and external, found on almost all Macs of the era, Zip 100 and Zip 250
- IEEE 1284 for parallel ports with passthrough for your printer, Zip 100 and Zip 250
- Zip Plus, an external drive that works with SCSI or parallel port, Zip 100 only
There were also three later implementations:
- USB 1.1, Zip 100 and Zip 250
- FireWire/IEEE 1394, Zip 250 and Zip 750
- USB 2.0, Zip 750
Incompatibilities
With each additional Zip format, Iomega further muddied the waters. It was simple when every Zip disk stored 100 MB and every Zip drive could read and write to it.
Zip 250 drives can read and write both Zip 100 and Zip 250 disks, although they write to Zip 100 disks very slowly. Zip 100 drives automatically eject Zip 250 disks as unreadable.
Zip 750 drives can read Zip 100 disks but not write to them at all. It is fully compatible with Zip 250 disks. Zip 100 and Zip 250 drives will eject a Zip 750 drive as unreadable.
Interestingly, Zip was listed as one of the 25 worst technology products (#15) by PCWorld in 2006 – and one of the 50 best (#23) in 2007!
Iomega was acquired by EMC in June 2008, making it part of the world's largest storage company. EMC and Lenovo partnered in 2013 to create LenovoEMC, which took over Iomega's business.
* No, it isn't a typo. Compleat is a legitimate, albeit archaic, spelling for complete. As Kenneth G. Wilson says in The Columbia Guide to Standard American English: 'This obsolete spelling of the adjective complete suggests an air of antiquity that seems to please some of those who name things….' We find that fitting for Low End Mac's Compleat Guides to 'obsolete' hardware and software.
Further Reading
Iomega had made a name for itself with its Bernoulli Box, a lower cost alternative to SyQuest drives with their hard disk platters. SyQuest had established itself with a 44 MB 5-1/4″ cartridge drive system using the same 130mm platters found in hard drives.
By contrast, Bernoulli cartridges had a floppy disk spinning at 3,000 rpm, using the Bernoulli Principle to pull the disk's surface toward the read-write head. Unfortunately, the original Bernoulli cartridge system used huge media, measuring about 8″ x 11″ (210 x 275 mm).
Bernoulli Box II used a smaller cartridge along with a drive that fit in a standard 5-1/4″ bay. Bernoulli drives were noted for their reliability, and they came in many different capacities.
Beyond Floppy Disks
Although Apple wasn't the first to use 3.5″ floppy disks, it was the first to standardize on them instead of the older, larger 5-1/4″ floppies. In the PC world, single-sided 3.5″ floppies held 360 KB of data, double-sided disks 720 KB. On Macs, the same disks stored 400 KB and 800 KB respectively.
High-density (HD) 3.5″ floppies arrived in 1987, and both PCs and Macs used them to store 1.4 MB of information. The same year IBM introduced its DSED (Double Sided Extended Density) 2.88 MB floppy drive and disks, which never caught on. The market needed a removable media drive with more capacity than floppies but at a much better price than SyQuest.
The Zip 100
Iomega brought its Zip drive and Zip disks to market in March 1995 with 100 MB capacity. Zip uses a cartridge a little larger and somewhat thicker than a 3.5″ floppy disk. It was also far faster than a floppy drive, which is part of what kept the competing LS-120 SuperDisk from catching on – it had higher capacity than Zip but was far, far slower. (Interestingly, SuperDisk began as an Iomega project that they ditched in favor of Zip. 3M acquired the technology from Iomega and brought it to market.)
With their relatively high capacity and low price (initially $20 per cartridge), Zip took off, selling nearly one million in 1995. A few Zip disks could back up most hard drives in 1995; one Zip disk could hold a bootable system plus diagnostics. Zip was also a great way to send files out to a service bureau.
Zip disks came preformatted for Macs or PCs, and either could be reformatted for the other platform using Iomega Tools.
A Word of Warning
The SCSI Zip drive allows you to choose one of two possible SCSI IDs, 5 or 6. SCSI ID 6 is rock solid, but SCSI ID 5 can have issues when other devices on the SCSI bus are moving a lot of data. Avoid using SCSI ID 5 if at all possible.
How Fast (or Slow) Is It?
In 2013, Lui Gough tested several different types of Zip drives on his AMD Sempton 3300+ powered PC running Windows XP SP3. Here are the average and maximum transfer rates by drive mechanism:
- ATAPI Zip 100: 1.0 MB/s avg., 1.4 Mb/s max
- USB Zip 100, bus powered: 0.7 MB/s avg., 0.8 MB/s max
- SCSI Zip 100: 0.6 MB/s avg., 0.7 MB/s max
- Parallel port Zip 100: 0.2 MB/s across the board
Cam Giesbrecht ran benchmark tests on his Mac Quadra 605, also comparing HD floppy and hard drive performance. His results:
- floppy disk, writes @ 61.6 KB/s, reads @ 78.6 KB/s
- SCSI Zip disk, writes @ 1084 KB/s, reads @ 1123 KB/s (50% higher than SCSI on PC)
- internal Quantum hard drive, writes @ 1497 KB/s, reads @ 1850 KB/s
- external Quantum hard drive, writes @ 1367 KB/s, reads @ 1367 KB/s
The SCSI Zip drive performs better on this Mac and the one tested by Lui Gough on his Windows PC, in part because Macs were optimized for SCSI drives in those days while PCs were optimized for ATA drives. The Zip shows itself to be a decent backup medium, writing data at 70-80% of the write speed of the two tested hard drives. Download rdp for mac.
As for the floppy, there is no comparison. Zip stores 70x as much data and runs about 15x as fast.
Finally, the Iomega Zip FAQ benchmarks Zip 100, SyQuest 44 (an older technology), and the hard drive in a 1989 Mac IIci, obtaining these results:
- hard drive: 119 KB/s random reads, 1099 KB/s 256K sequential reads, 71.1 KB/s random writes, 1216 KB/s 256K sequential writes
- Zip 100: 38.5 KB/s random reads, 1186 KB/s 256K sequential reads, 38.9 KB/s random writes, 1189 KB/s 256K sequential writes
- SyQuest 44: 37.3 KB/s random reads, 579 KB/s 256K sequential reads, 36.1 KB/s random writes, 579 KB/s 256K sequential writes
This seems to be comparing a 1989 vintage hard drive with two removable media options. Even an older hard drive outperforms Zip 100 and SyQuest 44 for random reads and writes, but the big surprise is that for 256 KB sequential reads, Zip beats the hard drive, while it takes a close second for 256 KB sequential writes, just behind the older hard drive.
Overall Zip had decent performance, especially compared to older hard drives. With contemporary mid-1990s hard drives, Zip would fall further behind yet still acquit itself nicely.
Lots of Options
Supported Platforms
As long as Iomega kept things simple, Zip continued to grow and grow. It supported most operating system of that era: How do you lock a mac.
- MS-DOS and Microsoft Windows, although Windows 7 and later will not work with parallel port drives
- Mac System 6 through Mac OS 9.2.2 plus OS X (System 6 requires an Iomega Drive version prior to 5.0, as does the Mac Plus)
- IBM OS/2
- AmigaOS 3.5 and later
- Oracle Solaris 8-11
- some Linux and BSD versions, although Zip is not universally supported
- some users have made SCSI Zip drives work with Apple II and Atari ST computers
Iomega Hdd Read Only On Mac Shortcut
Later versions of Zip supported 250 MB (launched December 1998) and 750 MB (August 2002) of storage. Zip drive sales began their decline in 1999 as CD-R and DVD-R grew in popularity, followed by the explosion in USB thumb drives.
Driver Downloads
- IomegaWare 4.0.2 for Windows 98, Me, 2000, and XP. Not compatible with Windows 95 or NT.
- Iomega Zip 100MB USB Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB Parallel Port Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB ATAPI Drivers Download, Windows XP, Vista, 7, 8, and 10.
- Iomega Zip 100MB SCSI Drivers Download, Windows XP, Vista, 7, 8, and 10.
- IomegaWare 4.0.2 for Mac OS 8.6 or later, OS X 10.1-10.2.1. Drivers are not needed with OS X 10.4, 10.5, and 10.6.
- Zip driver 4.2 for Mac Plus running System 6
Interfaces
Zip drives were available in numerous interfaces, including:
Iomega External Hard Drive Software Download
- IDE, an early ATA standard that does not support ATAPI commands
- ATAPI, a later version of ATA specifically for removable media; Zip 100, 250, and 750
- SCSI, internal and external, found on almost all Macs of the era, Zip 100 and Zip 250
- IEEE 1284 for parallel ports with passthrough for your printer, Zip 100 and Zip 250
- Zip Plus, an external drive that works with SCSI or parallel port, Zip 100 only
There were also three later implementations:
- USB 1.1, Zip 100 and Zip 250
- FireWire/IEEE 1394, Zip 250 and Zip 750
- USB 2.0, Zip 750
Incompatibilities
With each additional Zip format, Iomega further muddied the waters. It was simple when every Zip disk stored 100 MB and every Zip drive could read and write to it.
Zip 250 drives can read and write both Zip 100 and Zip 250 disks, although they write to Zip 100 disks very slowly. Zip 100 drives automatically eject Zip 250 disks as unreadable.
Zip 750 drives can read Zip 100 disks but not write to them at all. It is fully compatible with Zip 250 disks. Zip 100 and Zip 250 drives will eject a Zip 750 drive as unreadable.
Interestingly, Zip was listed as one of the 25 worst technology products (#15) by PCWorld in 2006 – and one of the 50 best (#23) in 2007!
Iomega was acquired by EMC in June 2008, making it part of the world's largest storage company. EMC and Lenovo partnered in 2013 to create LenovoEMC, which took over Iomega's business.
* No, it isn't a typo. Compleat is a legitimate, albeit archaic, spelling for complete. As Kenneth G. Wilson says in The Columbia Guide to Standard American English: 'This obsolete spelling of the adjective complete suggests an air of antiquity that seems to please some of those who name things….' We find that fitting for Low End Mac's Compleat Guides to 'obsolete' hardware and software.
Further Reading
- Zip Drive, Wikipedia
- The Iomega Zip Drive FAQ, 1995
- Iomega Zip Drive 100 Parallel, Centre for Computing History
- Our Favorite 'Forgotten Tech' – from BeOS to Zip Drives, Ars Technica, 2012
- Using a Zip Drive on a Mac Plus, Michael A. Peters, Jags House, 1998
- Mac Plus and Zip Drives Revisited, Vintage Mac World, 2007
Keywords: #zipdrive #zipdisk #iomegazip
Short link: http://goo.gl/JZA9SU
searchword: compleatzip
One of the most common issues that users face while using an external hard drive is the read only error. This could have occurred due to improper formatting, read-only permission on the drive or due to incompatible file systems. However, there are ways to the external hard drive read only error. This article gives you complete information on what to do when Mac external hard drive read only error occurs. Stick till the end of the article to know more.
Methods to Fix Mac external hard drive read only.
Follow two troubleshooting steps mentioned in the further section to fix external hard drive read only error
Method 1- Reset permission on the external hard drive.
By ignoring the owner permission, you can enable the drive to read and write the data. Follow the steps mentioned below to enable writing on the drive.
- Right-click the external hard drive, and from the context, click on opt Get Info
- Expand Sharing & Permissions and hit on the lock icon
- Provide the admin password
- Check the ‘Ignore ownership on this volume' checkbox at the bottom
Method 2 – Repair the External hard drive.
Despite enabling the ownership if the external hard drive still shows read only error repair the drive with the help of Disk Utility
- Go to Finder and click on Applications
- Select the Utilities option and click on Disk Utility
- Select the external drive from the sidebar, click the First Aid tab and click on Run
- After the repair process is completed, the read only error on the disk will be fixed and you will be able to use the external hard drive.
- If the computer shows a message stating The underlying task reported failure, try to repair the external drive again
By ignoring the permission or repairing with Disk Utility the external hard drive, you may be able to fix the issue and access the data from it. However, these above-mentioned solutions have its drawbacks. The reason being, these troubleshooting steps might not help you fix read only error all the time.
If the above-mentioned methods do not help you in fixing the read only error, there are chances that the external hard drive might be corrupted severely. However, you cannot let go of the important information present in the drive. In such cases, the only other way to recover data, is by using Remo Mac hard drive recovery software.
Recovering Data from Write Protected Mac External Hard Drive using Remo Recover
It is quite difficult to access any information from a drive that is write protected. Hence, a recover tool has to be used to accomplish this task. Remo Mac Data Recovery software is the effective tool that makes it easy to retrieve the data. The software is equipped with deep scan algorithm that glides through the entire hard drive sector by sector to recover data.
You can use this software to retrieve files from various brands of external hard drive such as, Western Digital, LaCie, Buffalo, etc. It helps to restore photos from Mac external hard drive, also you can use this software for recovering video, audio, compressed files, etc.
This application is compatible with all versions of macOS including Big Sur, Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Snow Leopard, Mountain Lion, etc.
Complete Guide on Data Recovery from Read Only External Hard Drive on Mac without Formatting:
Download Remo Recover Mac your Mac system. Install by following on screen instructions. Then, attach your external hard drive to the computer on which you have installed recovery software. Now, launch your application for initializing recovery process.
Step 1: When home screen appears, click onVolume Recovery
Step 2: When it displays list of drives, select the external hard drive from which the data has to be recovered and click on Next button
Step 3: After completion of the scanning process, the recovered data will be showin in Data view and File Type View
Step 4: Select required files and click on Save to recover the recover the data from the external hard drive
Conclusion
External hard drive read only error can be fixed by repairing the drive using disk utility, or by reformatting the drive with APFS file system. However, these methods are not always reliable as you might lose data from the drive during the recovery process. Therefore, it is recommended to use Remo Mac hard drive recovery software and backup all the data before going forward with the troubleshooting steps.
