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powernap lets machine stay up to date even while they're sleeping, 1 to enable or 0 to disable lidwake (laptop only) wake the machine when the laptop lid is opened, 1 to enable or 0 to disable acwake (laptop only) wake the machine when the power source is changed, such as when AC power is removed and the machine switches to battery power, 1 to ...
A modern PC with a bus rate of around 1 GHz and a 32-bit bus might be 2000x or even 5000x faster, but might have many more gigabytes of memory. With boot times more of a concern now than in the 1980s, the 30- to 60-second memory test adds undesirable delay for a benefit of confidence that is not perceived to be worth that cost by most users.
As part of the Mac transition to Intel processors, Apple released a 13-inch laptop simply named "MacBook", as a successor to the PowerPC-based iBook series of laptops. . During its existence, it was the most affordable Mac, serving as the entry-level laptop that was less expensive than the rest of the Mac laptop lineup (the MacBook Pro portable workstation, and later the MacBook Air ultra-port
[147] [149] A 15-inch MacBook Air was also introduced, and is the largest display included on a consumer-level Apple laptop. [150] The MacBook Pro was updated on October 30, 2023, with updated M3 Pro and M3 Max chips using a 3 nm process node, as well as the standard M3 chip in a refreshed iMac and a new base model MacBook Pro. [151]
The MacBook Pro is a line of Mac laptop computers developed and manufactured by Apple. Introduced in 2006, it is the high-end sibling of the MacBook family, sitting above the ultra-portable MacBook Air and previously the low-end MacBook. It is currently sold with 14-inch and 16-inch screens, all using Apple M-series chips.
MagSafe is a series of proprietary magnetically attached power connectors developed by Apple Inc. for Mac laptops. MagSafe was introduced on 10 January 2006, in conjunction with the MacBook Pro, the first Intel-based Mac laptop, at the Macworld Expo.
On Windows computers, hibernation is available only if all hardware and device drivers are ACPI and plug-and-play–compliant. This allows some desktop computers to hibernate quickly to SSD in the event of a power failure and power supplied to even a lightweight or aging UPS. Hibernation can be invoked from the Start menu or the command line. [10]
Devices that have rechargeable batteries and are always plugged in use standby power even if the battery is fully charged. Corded appliances such as vacuum cleaners, electric razors , and simple telephones do not need a standby mode and do not consume the standby power that cordless equivalents do.