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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
How do you delete stuff off a desktop computer if it is already saved to the harddrive?
Right click on the icon on your desktop, and then click on yes....ONLY if it says "do you want to delete this shortcut".....so you see, you DON'T want to delete the entire program from your computer. Read what it says after you Right click the icon.
What is needed to make the Famicom video game system operable with a USA television set?
http://www.consoledatabase.com/consoleinfo/nintendofamicomdisksystem/index.html this link is a good place to start..
...was a popular size for 3.5" floppy disks
Technically, 1.44 megabyte = 1.44 × 1000 × 1000 = 1,440,000 bytes
However, the "1.44 MB" disk actually had 1.44 × 1024 × 1000 = 1,474,560 bytes, using a very non-standard unit. This is equal to 1.47 MB or 1.41 MiB.
Since there are 8 bits per byte, this is 11,796,480 bits.
The USB port is used on computers to connect peripheral devices to it. The most common are MP3 players, digital cameras, mice, keyboards, external drives, flash drives, and many other devices, those are just to name a few.
How much disc space will 1 hour of video use?
That totally depends on what format of video the video is in, like, the "VOB" or the "AVI" format, is VERY large, like 4gbs a hour. But th "MP4" or MPEG is muuuuch smaller. -Hollow
How do you represent the binary codes in circuit?
A computer is basically a load of switches that can ither be on or off. 1 is for on and 0 if for off.
What the supercomputer could perform 5000 additions or subtractions per second?
5,000 calculations per second is glacially slow for a supercomputer. I do not believe anyone ever built a supercomputer that was that slow. The first viable supercomputer was the Cray-1, built in 1976. The Cray-1 was able to perform about 136 Mega-FLOPS (136,000). Today's supercomputers perform more than 5 Trillion (5,000,000,000,000) floating point operations per second (FLOPS).
The first computer deliberately designed to be "significantly faster" than the fastest computer of the time, the IBM NORC is occasionally called the "first supercomputer" (although it doesn't meet all the requirements usually set for qualification) could perform 66,667 additions or subtractions per second (but this was a unique one of a kind computer). This is more than 13 times faster than the speed you are asking about.
Even the first computer generally identified as a "supercomputer" the UNIVAC LARC could perform 250,000 additions or subtractions per second (however it was far from viable as only two of these machines were built, UNIVAC spent more building them than they were payed, and it was already completely obsolete the day the first one was finished). This is 50 times faster than the speed you are asking about.
All later supercomputers (viable or not) were faster than the LARC.
You might be thinking of ENIAC, which did 5000 additions or subtractions per second per accumulator but had 20 accumulators and sometimes operated 2 or more accumulators at the same time. But NOBODY ever considered ENIAC a supercomputer.
howard g aiken invented the computer
How to Position the cooling fans?
When building a PC you will need to position the cooling fans. You should refer to the documentation to work out how to do this.
Polling checks a remote network device or service availability via a SNMP protocol and report the information found on the network device and /or service back to the system where polling was initiated.
What is desktop personal computer?
In the early days (1980s) these types of machine were called micro-computers, for example, schools often had a BBC micro-computer. But now we tend to call them 'desktop personal computers' or just 'PC'.
The desktop PC has a central processing unit housed in a metal or plastic case (often called a tower unit). A keyboard and mouse are usually used to input data and a monitor to output the data.
Until recently, most PCs all looked the same, a very boring beige or grey box. Now manufacturers are coming up with some really interesting designs such as the 'alien' design on the right.
Modern PCs are quite powerful. They can carry out millions of calculations per second.
They are useful for lots of different types of tasks:
- Running office applications such as word processors, spreadsheets and databases
- For CAD design such as designing kitchens
- Editing videos
- Creating and playing music
- Accessing the Internet for research, work and entertainm
In the early days (1980s) these types of machine were called micro-computers, for example, schools often had a BBC micro-computer. But now we tend to call them 'desktop personal computers' or just 'PC'.
The desktop PC has a central processing unit housed in a metal or plastic case (often called a tower unit). A keyboard and mouse are usually used to input data and a monitor to output the data.
Until recently, most PCs all looked the same, a very boring beige or grey box. Now manufacturers are coming up with some really interesting designs such as the 'alien' design on the right.
Modern PCs are quite powerful. They can carry out millions of calculations per second.
They are useful for lots of different types of tasks:
- Running office applications such as word processors, spreadsheets and databases
- For CAD design such as designing kitchens
- Editing videos
- Creating and playing music
- Accessing the Internet for research, work and entertainm
Describe the differences between a hardware RAID and a software RAID?
Brief introduction about Hardware RAID
The hardware-based system manages the RAID subsystem independently from the host and presents to the host only a single disk per RAID array.
An example of a Hardware RAID device would be one that connects to a SCSI controller and presents the RAID arrays as a single SCSI drive. An external RAID system moves all RAID handling "intelligence" into a controller located in the external disk subsystem. The whole subsystem is connected to the host via a normal SCSI controller and appears to the host as a single disk.
RAID controllers also come in the form of cards that act like a SCSI controller to the operating system but handle all of the actual drive communications themselves. In these cases, you plug the drives into the RAID controller just like you would a SCSI controller, but then you add them to the RAID controller's configuration, and the operating system never knows the difference.
Brief introduction about Software RAID
Software RAID implements the various RAID levels in the kernel disk (block device) code. It offers the cheapest possible solution, as expensive disk controller cards or hot-swap chassis are not required. Software RAID also works with cheaper IDE disks as well as SCSI disks. With today's fast CPUs, Software RAID performance can excel against Hardware RAID.
Difference between hardware raid and software raid
- Obviously, hardware RAID is pricier compared to software RAID, due to the extra hardware that you need to purchase. The hardware is typically expensive, and adds a substantial amount to the cost of the whole system.
- On the flip side, the cheap software RAID can impair the host computer, which may result in poor performance. This is because it needs to process the data before it is written to disk, to determine where each piece of data should go.
The controller in a hardware RAID handles these operations, so that the host processor does not have to. The host processor will simply write the data, just like in a normal hard drive.
Tips: The performance hit taken by the system can vary a lot, depending on what type of RAID array you have in use. It could be very minimal, as with the case of a JBOD array. Or it can be quite substantial, especially with stripping and mirroring on multiple disks.
- Hardware RAID offers better reliability compared to software RAID. A software RAID can be prone to data corruption, due to the fault of the RAID software or driver that is being used. A software RAID can also be affected if the host computer is heavily loaded. Heavy processing can cause some pieces of data to be delayed by a small amount of time. These delays can add up, and negate the benefits of the RAID array to some degree.
A cache is intended to speed things up. The larger the cache, the slower it performs. If it becomes slower to access the cache than the memory itself, it defeats the purpose of having a cache.
This computer should be able to play "anything" on the market. However there are some very well known issues with games having excessive lagging on computers with Radeon, such as "Watch_Dogs". This is an issue with the games themselves (an awful port from console to PC), not the computer.
How do you open Acer Aspire 5600 as I need to change the DVD Drive?
If you open the lid you will see the keyboard area at the bottom, and a black plastic cover at the very top (the power switch is located on this panel). The black cover is afixed to the screen hinge by three screws. These screws are located at the back of the machine. 1) Remove the three screws that secure the black plastic panel to the screen hinges. 2) Gently prise off the black panel (I found the best way to do this was to fully open the screen 180 degrees. 3) With the cover off, you will see two screws that secure the keypad to the computer. Remove these screws and gently ease the key pad away from it's housing (key pad is self contained so no worries about keys falling off everywhere!). 4) You should now be able to locate the single screw that secures the DVD to the computer. Undo this screw and slide the drive out of the machine. 5) The drive you have extracted will have a black plastic mount afixed to it by four screws. You will have to remove this mount and transfer it to your new drive. Good luck!
Ripple is the oscillations that can arise in a circuit when a signal changes suddenly. It stems (in analog circuits at least) from stray capacitances and inductances forming a resonator.
Answer--Ripple can refer to:* Ripple (charitable organisation)
* Ripple effect, the socio-educational phenomenon
* Ripple (electrical), residual unwanted variations following ac to dc conversion
o Frequency domain ripple, the ripple of a filter's insertion loss
* Ripple (fluid dynamics) for capillary waves
* Ripple, Kent, a village in Kent, England
* Ripple, Worcestershire, a village in Worcestershire, England
* Ripple marks, as identified in sediments and sedimentary rocks
* Ripple monetary system
* Ripple (wine)
it is also a cheerleading move! it is when you take a step clap turn take a step yurn and you bend your knees do a high v put your arms together to the side bring it to you and swing your arm then jump *smile*What was the significance of core?
Core, I am assuming, means "magnetic core memory". This was an early type of persistent memory used on early computers. You could put a core on a shelf and pull it down for use several years later, and it would still have the data in memory as it was the day you put it on the shelf. Core memory was used as permanent random-access memory on early computers
A very small magnetic doughnut (a single core) would have three wires passed through it. Two wires would be used to set or read the position of the magnetic field of the particular core doughnut. A third wire was used to carry the signal if the field was reversed.
All magnetic fields can be reversed by creating a nearby magnetic field at sufficient strength. Current in one of the address wires was insufficient to cause a change in the magnetic field of the doughnut core. But when both address wires carried current at the same time, the magnetic field generated would flip the field of the core to align with the field produced by the current in the address wires.
When one of these tiny doughnuts switched magnetic poles a current was then introduced into the sensor wire and read as a change that might indicate a 1 or a zero. The machine would then put the core back the way it was to preserve that value stored in that memory location.
All of this wiring using these very tiny doughnuts of magnetic material was difficult and cost a lot of money to produce. It was all they had for permanent storage until transistors came into common use.
Which came first the Operating system or the hardware?
This is basically the same question as which came first, the Chicken or the Egg. Its argumentative.
If the CMOS battery dies will your system boot up normally?
if it's dead you need a new computer anyways, they're rated for 15 years or so
Does 2 fuses in parallel increase the amp rating?
yes two fuses in parallel will increase the amp rating but its not a good practice try to get the proper fuse!
What is the difference between code and cipher?
cipher is a lower level substitution that works at the level of the individual letters that make up the plaintext A code however is higher level and works at the level of words. Therefore this sentence could be turned into the code '@!:[]{}~+'
CMOS is the little battery in the computer's motherboard which keeps the computers internal clock running.
- Case
- Power Supply (Sometimes comes with case)
- Motherboard
- Processor/CPU
- RAM/Memory
- Hard Drive
- CD/DVD Drive
- Peripherals, such mouse, keyboard, and monitor.
- An Operating System. Such as Windows or Linux.
Optional Components:
- Video Card (For graphic intensive actions. Games and graphic design)
- Sound Card (Higher quality sound. Home theaters and professional music editing)
- Other peripherals, like earphones.
Before you buy, make sure all parts are compatible.
This is a simple summary of what to do, consult the manuals for each part for an in-depth guide.
- Place power supply into case.
- Put motherboard in place. Connect necessary cables.
- Install other components. Connect cables.
- Once all parts are done, close case and move onto peripherals.
- Plug peripherals in.
- Turn computer on.
- Install operating system.
- Install necessary drivers, usually found with product or on its website.
what type of motherboard is it? (brand name, model #, mhz, etc.)
once a brand name is given for the motherboard and the model number, you can try searching for the manufacturer's website for downloading a manual or online instructions for installation. another important tip is to be careful of magnetic objects (screw drivers, etc.) near these parts AND static causing agents (including your hands, carpeting). these will ruin the parts by shorting them out.
The easiest way would be to buy a "BareBones" system. Depending how much you want spend will determine what you will get. Some of the systems will only require a harddrive and a operating system.
