Which device normally can be seen if looking inside a desktop computer with the cover off and when Normally looking at the computer?
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Which device normally can be seen if looking inside a desktop computer with the cover off and when Normally looking at the computer?
Figure 4: Comparison of output devices
| Device | Technology | Colour? |
|---|---|---|
| Plotter | hardcopy | yes |
| Chain/line printer | hardcopy | no |
| Laser printer | hardcopy | yes |
| Dot-Matrix printer | hardcopy | some |
Which components most directly contribute to the overall speed of a computer choose all that apply?
The hardware components that contribute to the speed of a personal computer are the CPU, the motherboard, RAM, and the hard disk. In most cases, these items can be replaced with newer, faster components. In the case of RAM, simply adding more RAM can also speed up the computer.
What kind of memory is ROM?
Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device.
How would you describe the monitor or display unit?
A computer monitor is an output device that displays information in pictorial or text form. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) with LED backlighting having replaced cold-cathode fluorescent lamp (CCFL) backlighting.
Is visible outside the CPU?
Top view of an Intel CPU – because it is a single integrated unit, the components are not visible from the outside. As such, a CPU is a specific type of microprocessor. The individual components of a CPU have become so integrated that you can’t even recognize them from the outside.
How many servers in a 1 million square foot data center?
With this math, we estimate that in a 1 million sq ft data center with 65\% of the site being used for servers using only 52U racks, there can be 2,688,636 1U servers, 1,344,318 2U servers or 896,212 3U servers. Coming up with an estimate solely using floor tiles unfortunately doesn’t tell the entire story.
How much power does a data center use per rack?
For example, the Switch Tahoe data center is the largest in the world in terms of square footage but is capped at 55kW per cabinet. With a total of 850 Megawatts (850,000 Kilowatts), this means that there can be 15,454 server racks at full capacity. This brings into question how much power is typically used per rack.
What is the standard size of a server rack?
The standard Data Center Rack has a 4 ft depth and 2 ft width which means it occupies 1 floor tile in width and 2 in depth. This isn’t always the case. Many server racks have a 3 ft depth and 2 ft width which is what popularized the “ 7-tile pitch ” (seen in the photo above) a reality.
How many 1U servers can a 850 MW data center run?
If a similar high tier data center has an 850 MW capacity, and each rack was using 25 kW of power, that institution could operate 1,768,000 1U servers. Data centers tend to withhold many details of their operations for security purposes.