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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
well an IOS is the OS that cisco uses on their firewall, swithes and stuff like that.. I think what you mean is a ISO, which is a type of file. Most ISO files are for make CD's. You can also use a program like dameon tools to mount the file as another drive on your computer so you can run the ISO without burning it to a cd.
What is the difference between USB and scsi?
In it's day, SCSI was a great, high-speed disk interface. Today, IDE has pretty much taken over and SCSI isn't really worth the effort that it takes to support it. However, SCSI does have an option for an external connection.
USB is an acronym for Universal Serial Bus and it's a great way to interconnect devices with your computer.
Each USB device is SUPPOSED to have a built in identification code that allows the computer to identify what it's talking to. Drivers are available, either built in to Windows, Apple or Linux systems, downloadable across the internet or included with the device when you buy it.
Most USB devices are truly "universal".
Is it safe to open up a MacBook?
You will void the warranty if you open it up. But after the warranty has expired if you know what you are doing it is safe.
Buying a wireless card depends on if your wanting to use the laptop while not near the desktop. You can buy network cables to connect the two computers as well.
Should i buy software before hardware?
No you should not buy softwares before you buy your hardware because buying hardware first helps you decide what softwares will be compatible with your PC or notebook and then see which ones to buy.
How do you connect a PC to a laptop to view the PC files?
You need to buy a wireless router. Whether it be an internal or external, you need that to pick up the signal to your base or home network. Then if you don't already have WiFi built into your laptop, you also need that too. You can buy that also to plug into a USB port on the laptop.
This problem could arise from a number of things hardware and software related. Depending on your knowledge what i would do first is run a windows repair.. same as the installation process but you dont format losing data.. If you alittle more savvy then that try getting in to windows using safe mode.. check through your system processes and startup items (go to run and type services.msc) to determine what is causing the lockup.. Some other things to look into Check your RAM and HDD for problems as these can be a cause as well.. Could even be a driver problem in which case it could be the hardware itself or the software controlling it.. Im very confident you just ran into malware of some form and a Windows Repair is all you will need.. By |-|3x@|_07 MOST LIKELY MEMORY
How do you fix computer keys that don't work?
There is one way to fix computer keys that don't work. Since computer stores don't sell individual keys, the only way is to buy a new whole keyboard that is a better version than the other ones so keys won't get broken.
If the computer is able to accept PCI cards you will need to add a FireWire card to the computer and connect the camera to that. (See links below)
What things can you store on a flash drive?
Any digital file which is small enough to be held on the file system and smaller than its capacity eg- 8GB drive running on fat32 file system has a maximum individual file size of 4GB. You cannot store a file larger than 4 GB on FAT32 system, so any file smaller than 4GB can be stored. Just put the file on and your computer will tell you if it is too large.
Hardware servicing nc-II questioner and answer?
what is the Basic Occupational Health Safety in Hardware Servicing NCII
Discuss the objectives of an Input and output system?
This refers to targets aimed to be achieched in coming up with an input output system.They include;
1.Devive independence;a program should independed of the particular devece of a given type which it happens to be allocated.
2.Efficiency;perhaps the most crucial characteristic of the I/O sytstem is the speed disparity between it and the processor and the memory(
YES, 512Mb is insuffice for todays operating systems and programs...
as time progresses Windows and other operating systems and programs get bigger and bigger in size utilizing all the extra memory that comes in computers these days...
the reason your computer gets slow with low amounts of memory is because as you open programs it requires more memory to store them in and thus pages files currently in the memory to disk in order to free up space - the "slowness" you experience is when windows is restoring or paging files to and from the disk - when you have more memory it does not have to do this as much and thus works faster/instantly
you would be best installing 2Gb into your machine - using 2 sticks of 1Gb so you get dual-channel memory (double speed) - ensure you buy the correct memory and the fastest speed your motherboard can support - 1Gb is also not really enough (definitely, if you have Vista or Windows 7) and would just get slower again as time goes on, installing 2Gb will give you some overhead for the future too
What situation would a zip file be used?
A .zip file may be used when compressing multiple files in one.
Key guard is a simple silicon or plastic type mat with glue which you can stick on your keyboard and it will protect your key from water, dust etc. But generally if you don't have one key guard for your key board then it's also alright.
How do you speak CPU language?
The computer language to directly communicate with the CPU is known as Machine language, or Binary. Its closest relative language would be Assembler which is more programmer-friendly.
In general, any programming language speaks to the CPU, but is converted into its lowest form through an interpreter.
Are you familiar with the term MESI?
The MESI protocol, or "Illinois" protocol is a widely used memory coherency or cache coherency protocol used for "Write back cache" for example.
Hope this helps!
What type of expansion slot is compatible with wireless network interface card?
Desktop : standard PCI slot, usb dongle, and NOW there are PCI-E 1x cards
Laptop : PCMCIA slot, usb dongle, or built in :D
What is difference between processors cores and threads?
A processor "core" is a physical processing unit on the die (the silicon wafer - the actual chip). Older CPUs have only one core per chip. For these, to get two processing units (cores) you must have a motherboard with two separate CPU sockets. With two physical CPUs, communication between the CPUs has to go out one CPU socket, across the motherboard support circuitry, and in through the socket of the second CPU. This is considerably slower than the speed at which things take place inside the circuitry on the same chip. So to increase processing speed, and to lower manufacturing and end-user costs, individual CPUs were designed to have more than one processing unit (cores) on the chip. So a 2-core CPU is very much like having two separate CPUs but is less expensive and can often be faster than two single-core CPUs of the same capability because of the increased communication speed between them, and because they can share common circuitry such as a cache.
A processor "thread" is an execution sequence active in a processor (core). By definition, a single-core CPU can have only one thread active at a time. A 2-core CPU can have up to two threads active (one per core); but only one per core.
In a simplistic view, a thread (a sequence of steps to be executed) is constructed in a "pipeline" and then "scheduled" for execution by a CPU core. Once a thread is scheduled, the CPU core is executing the pipelined instructions. Frequently, while the thread is executing, the CPU needs more information than just the series of instructions: it needs data. These data values may be only a few nanoseconds away in some RAM memory location or they may be several thousand nanoseconds away (milliseconds) on a disk drive. When a core has to stop executing the thread while it waits to fetch the external data, time is lost. No other thread can be executed while the waiting thread is scheduled on that core (the thread is given an allotment of time and not kicked out early).
This is similar to a single lane bridge. Only one car can use the bridge at a time. If a driver stops to take a scenic picture, no other car can use the bridge until the driver gets his picture and moves off the bridge. To prevent complete closure of the core, the CPU has a mechanism to swap an entire thread off of the core if it experiences a serious problem (like a car with a breakdown), but that is a very costly process and is not used if the thread is just waiting for I/O to complete so that it may continue executing. Like the car analogy, forcing a hung thread out of a core prematurely is like waiting for a tow truck to get the broken down car off the bridge. It takes quite a while, but it is still quicker than repairing the car on the bridge.
A multi-threaded core is like a bridge that has a passing lane. When the driver on the bridge stops to take a picture, the car behind him can still use the bridge by passing the stopped car using the passing lane. Think of it as two different pipelines where thread executions are constructed. Still only one can be scheduled to a core at a time. But if the executing thread is waiting to fetch I/O, the other thread can jump in the core and get a little CPU time in while the thread assigned to the core is waiting.
This allows what may look like two cores (two pipelines executing at the same time). BUT IT IS NOT. Still only one thread at a time can be executed by the core at a time. This just allows another thread to execute during the waiting period of the first thread. Depending upon specific application design, data needs, I/O, etc, multithreading can actually decreaseperformance or may increase performance up to about 40% (sited from Intel and Microsoft sources).
Intel CPUs support multithreading, but only two threads per CPU. AMD CPUs do not support multithreading and AMD often sites Microsoft's recommendations to turn off Hyperthreading on Intel CPUs when running applications like peoplesoft and Exchange.
What are the relative advantages and disadvantages of internal CD burner and external CD burner?
An external drive will be a little slower because of the speed differences between SATA (internal) and USB (external). The obvious advantage to an external is changeability, ease of access, etc.
