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Category Archive: Technology

CoreServices apps: Directory Utility

Accessing information about you as a user and a great deal more, using the Advanced Options dialog for user accounts, and Directory Utility.

December 24, 2021 Macs, Technology

CoreServices apps: Wireless Diagnostics

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If you want to check out your Mac’s Wi-Fi connection, Wireless Diagnostics is ideal. It’ll show you signal dropouts and give its opinion.

December 23, 2021 Macs, Technology

Anomalies in base performance of M1 cores

How can the two E cores in an M1 Pro/Max apparently match the performance of the four in the original M1? Answers, please.

December 22, 2021 Macs, Technology

Is backing up to networked storage improving?

Backing up using Time Machine over Gigabit Ethernet to another Mac providing shared backup storage in Monterey 12.1 delivered good performance of 35-43 MB/s.

December 21, 2021 Macs, Technology

Solutions to Saturday Mac riddles 130

I hope that you enjoyed Saturday’s Mac Riddles, episode 130. Here are my solutions to them. 1: They […]

December 20, 2021 General, Macs, Technology

How to get an old version of macOS, OS X and Xcode

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You might want an old macOS or OS X installer to build a Virtual Machine, or for an old Mac. Here’s how to get them, and old versions of Xcode.

December 20, 2021 Macs, Technology

Last Week on My Mac: shrinking macOS updates

The macOS 12.1 update is the smallest x.1 update since High Sierra 10.13.1 in October 2017, over four years ago. How come it has bucked the trend in Big Sur?

December 19, 2021 Macs, Technology

Saturday Mac riddles 130

Here are this weekend’s riddles to entertain you through family time, shopping and recreation. 1: They come flooding […]

December 18, 2021 General, Macs, Technology

Explainer: Vectors, Accelerate and poor performance on M1 Macs

Some apps and other code doesn’t appear to run faster on M1 chips, and some even runs more slowly. Could this be a result of it not using the best acceleration for vectors and matrices?

December 18, 2021 Macs, Technology

When you can’t restart an M1 Mac from an external disk

Assigning ownership to an external bootable disk doesn’t always work in Recovery mode on an M1 Mac. But there’s an easy workaround.

December 17, 2021 Macs, Technology

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