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October 15, 1990 3 years, 9 months February 3, 1987 Macintosh SE: Compact: August 1, 1989 2 years, 5 months March 2, 1987 Macintosh II: Mac II: January 15, 1990 1988 September 19, 1988 Macintosh IIx: Mac II: October 15, 1990 1989 January 19, 1989 Macintosh SE/30: Compact: October 21, 1991 March 7, 1989 Macintosh IIcx: Mac II: March 11, 1991 ...
To allow for voltage drops, the voltage at the host port, hub port, and device are specified to be at least 4.75 V, 4.4 V, and 4.35 V respectively by USB 2.0 for low-power devices, [a] but must be at least 4.75 V at all locations for high-power [b] devices (however, high-power devices are required to operate as a low-powered device so that they ...
The program, when installed, prompts the user to create a whitelist of devices that are allowed to connect to the computer via its USB ports, which it checks at an adjustable sample rate. The user may also choose what actions the computer will take if it detects a USB device not on the whitelist (by default, it shuts down and erases data from ...
If you’re looking to connect a bunch of USB devices—and don’t need Ethernet, SD, VGA, or HDMI connections—look for an adapter with USB 3.0 ports (the current standard for USB-A). How We ...
June 15, 2010 Mac Mini (Mid 2010) Mac Mini: July 20, 2011 June 24, 2010 iPhone 3GS (8 GB) iPhone: September 12, 2012 iPhone 4 (GSM) (16 & 32 GB) iPhone: October 4, 2011 July 27, 2010 iMac (Mid 2010) iMac: May 3, 2011 Magic Trackpad: Pointing devices: October 13, 2015 Apple Battery Charger: Input Device Accessories January 15, 2016 LED Cinema ...
The 68020 has many improvements over the 68000, including an instruction cache, and was the first Mac processor to support a paged memory management unit, the Motorola 68851. The Macintosh LC configured the 68020 to use a 16-bit system bus with ASICs that limited RAM to 10 MB (as opposed to the 32-bit limit of 4 GB).
The physical phenomena on which the device relies (such as spinning platters in a hard drive) will also impose limits; for instance, no spinning platter shipping in 2009 saturates SATA revision 2.0 (3 Gbit/s), so moving from this 3 Gbit/s interface to USB 3.0 at 4.8 Gbit/s for one spinning drive will result in no increase in realized transfer rate.
The Macintosh LC III is a personal computer designed, manufactured, and sold by Apple Computer from February 1993 to February 1994. [1] It replaced the commercially successful Macintosh LC II in Apple's lineup of mid-class computers, and was significantly faster, with MacWorld Magazine benchmarks showing 2x performance in all major categories - CPU, disk, video and maths.