The hard disk icon does not appear on the desktop.

If you don’t see a hard disk icon on the desktop, try the following:

mIf the hard disk is internal, shut down your computer, wait at least 10 seconds, and then turn it on again.

mIf the hard disk is external, make sure that it is turned on and that its cable is connected firmly; then restart the Macintosh.

mCheck the ID numbers of all SCSI equipment connected to your computer. See the manuals that came with your SCSI equipment for information on setting SCSI ID numbers.

mIf the hard disk is your startup disk, start your computer using the Utilities floppy disk or, if you have a built-in CD-ROM drive, with the Macintosh Peforma CD. (For instructions on how to start up your computer from the CD-ROM disc, see “Starting Up From a CD-ROM Disc” in the section “Repairing a Damaged Disk” later in this chapter.) Then follow the rest of the instructions on repairing a disk to test your startup hard disk and repair any damage.

If repairing the disk doesn’t help, follow the instructions in “Installing or Reinstalling System Software” later in this chapter to reinstall system software on your startup hard disk.

Icons do not appear correctly on your screen.

You need to rebuild the desktop—a process that helps your Macintosh keep track of files and folders on your hard disks. For instructions, see “Rebuild Your Desktop Regularly” in the section “When You Run Into Trouble” earlier in this chapter.

If icons do not appear correctly after you rebuild the desktop, restart your computer while pressing the Shift key to temporarily turn off system extensions. When you see the “Welcome to Macintosh—extensions off” message, release the Shift key and press the Option and x keys until you see a message asking if you want to rebuild the desktop.

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Apple 550 series, 570 series Hard disk icon does not appear on the desktop, Icons do not appear correctly on your screen

570 series, 550 series specifications

The Apple 550 and 570 series are notable entries in Apple's lineup of devices, typically recognized for their blend of performance, efficiency, and user-friendly design. With a focus on delivering high-quality features, these series have attracted attention from both tech enthusiasts and general consumers alike.

The Apple 550 series is anchored by its sleek design, often characterized by an aluminum chassis and vibrant Retina display. One of the standout features of this series is its use of the M1 chip, which enhances performance across applications while maintaining impressive battery life. This chip, based on ARM architecture, integrates an 8-core CPU and an 8-core GPU, allowing for seamless multitasking and exceptional graphics performance. Additionally, the 550 series boasts elevated RAM options, making it suitable for power users and professionals in creative fields.

On the other hand, the Apple 570 series builds on the foundation of its predecessor, offering new advancements while retaining core features that users love. The 570 series also utilizes the M1 chip, but with the evolution of the series, Apple may introduce enhancements such as increased clock speeds or supplementary cores for even greater performance gains. This series is often highlighted for its advanced thermal management system, ensuring that the devices run cooler under heavy workloads.

Both series support industry-leading technologies such as Thunderbolt 3 and USB-C, enabling high-speed data transfer and versatile connectivity options. This feature is particularly beneficial for users who require fast access to external storage, displays, or docks. Furthermore, these devices typically come with upgraded audio systems that provide clear, immersive sound, enhancing the multimedia experience for users, whether during casual listening or professional production.

In terms of build quality, both the 550 and 570 series are designed with sustainability in mind, incorporating recycled materials and energy-efficient components. They also run on macOS, which offers a robust ecosystem, ensuring a seamless user experience across Apple devices.

With exceptional performance, cutting-edge technologies, and commitment to sustainability, the Apple 550 and 570 series stand out as impressive offerings within the technology landscape, catering to a diverse range of users from everyday consumers to creative professionals.