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2. Rack unit - Wikipedia

   en.wikipedia.org/wiki/Rack_unit

   Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

3. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   A third common use for rack-mounted equipment is industrial power, control, and automation hardware. Typically, a piece of equipment being installed has a front panel height 1 ⁄ 32 inch (0.031 in; 0.79 mm) less than the allotted number of Us. Thus, a 1U rackmount computer is not 1.750 inches (44.5 mm) tall but is 1.719 inches (43.7 mm) tall.

4. Time base correction - Wikipedia

   en.wikipedia.org/wiki/Time_base_correction

   Physically there are only 4 types: dedicated IC, add-in cards for prosumer/professorial VTR/VCRs, desktop standalone units, and dedicated rack mount units. In the broadcast world, 1U Rack-mount type time base correctors were common. They are intended to be easily slid out of a rack on rails to be serviced, as these units were meant for 24/7 ...

5. Uninterruptible power supply - Wikipedia

   en.wikipedia.org/wiki/Uninterruptible_power_supply

   However, the two most common forms are tower and rack-mount. [12] Tower models stand upright on the ground or on a desk or shelf, and are typically used in network workstations or desktop computer applications. Rack-mount models can be mounted in standard 19-inch rack enclosures and can require anywhere from 1U to 12U . They are typically used ...

6. Pizza-box form factor - Wikipedia

   en.wikipedia.org/wiki/Pizza-box_form_factor

   Rack mount 1U computers come in all types of configurations and depths. The pizza box form factor for smaller personal systems and thin clients remains in use well into the 21st century, though it is increasingly being superseded by laptops, nettops or All-in-One PC designs that embed the already size-reduced computer onto the keyboard or ...

7. All of the best Black Friday deals: Amazon, Walmart, Wayfair ...

   www.aol.com/lifestyle/all-of-the-best-black...

   Updated: Black Friday's best weekend deals are here on Apple AirPods and iPads, Samsung TVs, Bissell vacuums, KitchenAid and Ninja small appliances, gifts for men, women and kids — and more.