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Computer Hardware
Computer hardware is a general term used to refer to all the physical parts of a computer. Internal hardware devices include hard drives and motherboards, while external hardware devices include monitors, mice, keyboards, and printers.
11,849 Questions
What is level 1 2 and 3 cache?
; L3 Cache (Level 3 Cache) This type of cache is becoming more prevalent as microprocessor manufacturers ship more processors with L1 and L2 cache built into the processor. L3 cache is then the extra cache that sits on the motherboard between the processor and main memory, since the processor already contains L1 and L2 cache. Some processors are starting to ship with L3 cache built-in as well to speed up memory operations further. In those cases the L3 cache often sits on a separate area of the die, not built directly into the chip core.
What port connects up to 127 devices?
USB Will allow up to 127 devices per host controller. Usually, a host controller has more than one USB port. The host controller will only allow 127 devices in total (including hubs), so you can not have 127 per port.
What is the multiplier if your front side bus is 133 MHz and your processor runs as 2.53 GHz?
Im guessing your multiplier would be around 19x or so, you could check this by entering your BIOS at startup and checking in there.
Ususally to enter the BIOS you hit one of the following:
-Esc
-F2
-F10
-F12
-Delete
One of these usually enters the setup.
A similair question asks how many KB are in a MB, and the answer is not an even 1000, it's 1024. Math: 1024 * 1200 = 1,228,800
How do you format a hard drive with Windows 95?
For any disk OTHER THAN THE ONE YOU BOOT FROM, simply open a command prompt and type:
format d: (where "d" is the designator of the disk that you want to format)
OR
open windows explorer, select "my computer" then right click on the drive you want to format (again, it can't be the disk you boot from"
If you want to format your C drive you'll need to boot from some other medium, such as the installation disk or a floppy.
What are the advantages of having a wireless scanner?
Wireless printers allow a single printer to be networked by other computers on your wireless network, allows you to make a central location for all printer users, allows you to place the printer further from your computer without running USB cable or further than USB code allows. It does require a wireless router as the hub. Depends on what you want and need.
DVD as a format had two qualities at the time that were not available in any other interactive medium: enough capacity and speed to provide high quality, full motion video and sound, and low cost delivery mechanism provided by consumer products retailers.
What scsi standard has a maximum transfer rate of 80 MBps?
SCSI (Small Computer System Interface) transfer rate is specified as mbps which is: "MegaBits Per Second". Note it is not "megabytes" per second. This can be somewhat misleading, since a higher number is derived from using the "megabit" rating rather than the "megabyte" rating. Obviously there are 8 bits in a byte, so specifying the rate in "mega bytes" would result in a 5 megabyte transfer rate specification.
What is the processing power of central processing unit?
It is a measure (using various methods of determination) of the ability of a particular PC (CPU Chip) or PC architecture (Fully build PC) to do useful work.
In a processor these are 120 instructions Bits needed to implement this instructions?
Log2 260 is 8.022, so it would seem that 9 bits are required to handle 260 instructions. In practice, however, the opcode is a multiple of 8 bits, so most instructions are 8 bits, with a few being 16 bits.
What are the advantages of midrange computers?
Mid-range computers are good because they are less expensive than high-end computers. This means you can upgrade their parts to make them better, and they may still be affordable.
What are the five main parts of information processing?
Information processing involves five phases: input, process, output, storage, and retrieval. Each of these phases and the devices associated with each are discussed below.
Ide hard drive can be slave with sata hard drive?
No Master Slave designation needed. SATA Drives are plug-add-play.
Improve: SATA (Serial) Attached Drives improve data tansfer speeds up to 10-100 GBytes/per.
eSATA are (Externally) Serial-Attached Drives and SATA-II(Sata-2) Drives transfer data @ 300GBytes/per.
The next barrier of TerraByte data transfer has been developed and is already in production with a (SATA-3) designation attached
What is the small cord sometimes found on the end of a PC card called?
A "Dongle" or "Pigtail".
6th Edition, Page 1084
The difference between buffer and cache?
Buffer
A data area, shared by hardware devices or program a process is called buffer. They are operated at different speeds or with different sets of priorities. The buffer allows each device or process to operate without holding up by the other. In order to a buffer to be effective, the size of the buffer needs to be considered by the buffer designer. Like a cache, a buffer is a "midpoint holding place" but does not exist so much to accelerate the speed of an activity as for supporting the coordination of separate activities.
This term is used not only in programming but in hardware as well. In programming, buffering sometimes needs to screen data from its final intended place so that it can be edited or processed before moving to a regular file or database.
Cache Memory
Cache memory is type of random access memory (RAM). Cache Memory can be accessed more quickly by the computer microprocessor than it can be accessed by regular RAM. Like microprocessor processes data, it looks first in the cache memory and if there, it finds the data from a previous reading of data, it does not need to do the more time consuming reading of data from larger memory.
Sometimes Cache memory is described in levels of closeness and convenience to the microprocessor. An L1 cache is on the same chip like the microprocessors.
In addition to cache memory, RAM itself is a cache memory for hard disk storage since all of RAM's contents come up to the hard disk initially when you turn on your computer and load the operating system that you are loading it into RAM and later when you start new applications and access new data. RAM also contains a special area called a disk cache that consists of the data most recently read in from the hard disk.
How user comminicate with computer hardware?
With a keyboard, mouse, touchpad, worldspace controller, trackball, touchscreen, game controller, joystick, wheel and pedals, or any other input peripheral you care to name. Unless I'm misunderstanding the question...
What are the difference between AGP and PCI E?
AGP or Accelerated Graphics Port succeeded PCI or Peripheral Component Interconnect as a technology to connect graphics cards to a computer's motherboard. PCI is still used to connect other devices like ethernet and sound cards.
AGP slots provide a dedicated link between the card and the CPU and thus providing faster communication between them. There are other enhancements as well. See the source for more. But the bottom line is that AGP cards perform much better.
But now AGP is getting phased in favor of PCIe or PCI Express which is even faster and can be used as the bus for all the devices in a machine.
What is the best performing desktop computer?
The absolute fastest desktop PCs will likely come from boutique gaming vendors, such as Falcon Northwest. Computers from Falcon, or other small gaming vendors, tend to offer extremely heavily overclocked parts which outperform anything else on the market.
Are all routers basically the same?
No, there are many different speeds and other variables associated with routers. Most commonly, the speeds are 802.11, G, and N with variations of those. Those are listed in order of speed with N being the fastest. However, the speed will also depend on the device using the router. For example, if a laptop with a G receiver is on an N router, it will only get G speed.
Which brings me to my next point: There are also wireless and non-wireless routers. The above information only applies to wireless routes. As for wired routers, these are more similar. The only thing you will have to watch out for is the connection type your using. if you have dial-up internet or a 56k connection, you will need to buy the appropriate router. Same thing goes for a Ethernet or cable connection.
Another thing to look for is the number of ports available to use. If you are simple running 1 wire to 1 computer, all routers should have this function. However, if you are connecting multiple computers or sources to it, then you will need to make sure that there are enough ports to accomplish your needs
How do you connect two computers using a crossover cable?
You need to configure a static IP address on both items to enable them to talk to each other. I.E. set the PC to 192.168.1.2 and the printer to 192.168.1.3 Use 255.255.255.0 for the subnet mask. The gateway can be set to 192.168.1.1 although this setting is not needed for a crossover cable. The Problem is that I don't have the printer cable and the only way to attach the printer is via an ethernet crossover cable. the printer is from an office and was networked previously. I did a configuration print out of the printer and I set up the IP address already given to the printer on the printout. I gave my laptop the same IP address and subnet as the print out and set up a network using the network wizard but I still cannot see or access the printer.
What computers are compatible with word processing?
that depends on what version of word processor you are using. the latest versions of Microsoft office push the limits of what is acceptable bloat for a word processor.
Openoffice is free, small, and can install on almost anything that has Java Runtime installed, and has 250MB of free space. Plus it's compatible with Microsoft office formats.
What is a device that sends information into a computer?
Peripherals. These are devices that are attached to the computer that a user can interact with in some way, shape, or form - basically anything you can connect to a computer that isn't another computer. Things such as the mouse, keyboard, and scanners allow the user to input data into the computer, while those such as a printer, monitor, and speakers allow the computer to return information to the user. Some devices, such as a headset with both speakers and a microphone built in, play both roles in one device.
