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Computer speakers, or multimedia speakers, are speakers sold for use with computers, although usually capable of other audio uses, e.g. for an MP3 player. Most such speakers have an internal amplifier and consequently require a power source, which may be by a mains power supply often via an AC adapter , batteries, or a USB port.
The first IBM Personal Computer, model 5150, employed a standard 2.25 inch magnetic driven (dynamic) speaker. [1] More recent computers use a tiny moving-iron or piezo speaker instead. [2] The speaker allows software and firmware to provide auditory feedback to a user, such as to report a hardware fault.
Up to 18 hours of battery with the 13-inch model and up to 17 hours with the 15-inch model. 13-inch and 15-inch touchscreen with 3:2 aspect ratio, and 60 Hz refresh rate; USB A and USB C port with Thunderbolt 4; Up to 1 TB of SSD storage, with no microSD slot for expansion; Up to 32 GB of memory
Since around 1990, where a hard drive is present it will typically be a 2.5-inch drive; some very compact laptops support even smaller 1.8-inch HDDs, and a very small number used 1" Microdrives. Some SSDs are built to match the size/shape of a laptop hard drive, but increasingly they have been replaced with smaller mSATA or M.2 cards.
The default operating system is Windows 10 Home. The display is a 13.5 inch 2256 x 1504 pixel 10-point touch screen with a front 720p HD camera. The laptop weighs 2.76 pounds for the Intel Core i5 models and 2.83 pounds for the Intel Core i7 model.
In addition to the 13.5-inch screen available in the original Surface Book introduced two years before, it is also available in a 15-inch screen model. It was released in November 2017, [ 1 ] and replaced in Microsoft's product line by the Surface Book 3 in May 2020.
The 15-inch MacBook Pro weighs the same as the 15-inch aluminum PowerBook G4, but is 0.1 inches (0.25 cm) deeper, 0.4 inches (1.0 cm) wider, and 0.1 inches (0.25 cm) thinner. [7] Other changes from the PowerBook include a built-in iSight webcam and the inclusion of MagSafe , a magnetic power connector designed to detach easily when yanked.
The enclosure of the iPhone 15 Pro and iPhone 15 Pro Max is made of grade 5 titanium, unlike the stainless steel frame of previous Pro models. The display bezels have also been reduced from 2.2 mm to 1.55 mm. [ 9 ] The phone is available in four colors: natural titanium , blue titanium, white titanium, and black titanium. [ 10 ]