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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 does MB mean and stand for?
Mb stands for Megabits, Mega stands for a million (1 followed by 6 zeros). A Megabit stands for that many bits of digital information or data.
If written as MB (with a capital B) it stands for Mega Byte. One Byte contains 8 bits.
- Neeraj Sharma no u got it all rong mb means master bate
What is function of computer speaker?
The computer speaker is an output device which gives the user auditory feedback regarding the state of the computer. This can be as sophisticated as a 8-channel surround-sound system for playing movies and the like, or as basic as the integrated "beeper speaker" whos only role is indicate critical errors in the boot sequence when video output is not available.
Is it possible to connect a PC monitor to a VCR?
There are several ways to hook a vcr up to a PC monitor, but most of them depend on the outputs of the vcr and inputs and other features of the monitor. The easiest and usually cheapest way is to buy a tv tuner for your PC. These tuners cost from $20-$200. Another way is to use a vga box which will de-interlace the vcr input and upscale the rez for the monitor. If your vcr has rca component out and the moniter supports sync on green then you could use a straight through component to vga adapter. Also some older monitors as well as fairly expensive new ones may have some type of rca or s-video input.
How can you connect your lap top to your tv?
One way you can connect your laptop to your tv,is by using S-Video.Take the S-Video cable and connect it to your laptop,look for a circle with smaller circles in it.Do the same for your tv...then got to your desktop,right click,and go to properties...i dont know what to do after that :) bye
How do you set the date and time on a Relic Watch?
Set the Day of the week and the Hour by pulling the stem out all the way, set the Day of the week out by pulling the stem out walf way. Set the Day of the week and the Hour by pulling the stem out all the way, set the day of the month out by pulling the stem out walf way.
What is framework for multimedia system?
CPU is main part of computer,or it is brain of computer,CPU is the most important element of a computer system.
The CPU also know as, Processor, central processor,microprocessor,it is a brain of computer.
What are the advantages and disadvantages to a concept keyboard?
Advantages
* Much faster for making non-text selections such as menu choices on the till of a fast-food outlet. * The keyboard is waterproof which can be useful where there is dirt or the risk of splashes. Disadvantages
* Poor for text or numeric input - although some keyboards do include a numeric keypad so the operator can enter the amount sold. * Limited to the options shown on the keyboard.
UMD disc how to copy to memory stick?
First, is your PSP hacked? second of all, if it is, go to recovery menu (shutdown PSP and start up but hold R button) then enable vsh menu. (configuration - enable vsh menu) after, exit and go to XMB. press select a menu should appear. Change USB device to UMD Disc (make sure u have your UMD that you want to copy inside the system. then go to USB connection. open up your PSP's folder and you will find your game which u can copy (it should be named UMD 9660 but it don't matter. Make sure you COPY NOT CUT!
What are the circumstances of user level thread better than kernel level thread?
There are two distinct models of thread controls, and they are user-level threads and kernel-level threads. The thread function library to implement user-level threads usually runs on top of the system in user mode. Thus, these threads within a process are invisible to the operating system. User-level threads have extremely low overhead, and can achieve high performance in computation. However, using the blocking system calls like read(), the entire process would block. Also, the scheduling control by the thread runtime system may cause some threads to gain exclusive access to the CPU and prevent other threads from obtaining the CPU. Finally, access to multiple processors is not guaranteed since the operating system is not aware of existence of these types of threads. On the other hand, kernel-level threads will guarantee multiple processor access but the computing performance is lower than user-level threads due to load on the system. The synchronization and sharing resources among threads are still less expensive than multiple-process model, but more expensive than user-level threads. Thus, user-level thread is better than kernel level thread.
What are the advantages of a rack mounted plc?
they have expandable memory and they come in cards which just slot into a mounted part
What are Example of ipsec encryption modes?
There are two modes for IPSec. Transport mode and Tunnel mode. Transport mode is for securing end-to-end communication between two computers and tunnel mode is for securing gateway-to-gateway communication.
Refer the following links for more info.
http://www.omnisecu.com/security/ipsec/ipsec-transport-mode.htm
http://www.omnisecu.com/security/ipsec/ipsec-tunnel-mode.htm
How many register in 2K memory chip?
Registers represent the number of memory locations. A 2K memory chip has 2x1024=2048 memory locations. Hence there are 2048 registers in a 2K memory.
well to measure what the proccesor does, its measured in Hertz or Hz, but now a days since technology has gotten faster, a term that is used to indicate higher units are in mega Hz or Giga Hz. each processor varies (well of course) and not all processors are compatible with every mother board. (just to throw that out there)
How many hours will a raspberry pi on 5 watts last on 5000mAH?
The Raspbery Pi runs on a 5 volt power supply. 5 watts at 5 volts is 1 ampere. 1 ampere is 1000 milliamperes. This would seem to indicate that a battery pack rated at 5000mAH (5000 milliamperes per hour) should run for 5 hours with a load that is drawing 1 ampere.
However, this presupposes that the battery is delivering a potential difference of 5 volts. Since the Raspberry Pi contains a 5 volt linear regulator on it's power input rail, the battery has to deliver at least 6.5 volts for the Raspberry Pi to function correctly (to compensate for the voltage drop inherent in any linear regulator.)
Also, if the battery's voltage is significantly higher than this, it would drain much faster and possibly damage the Raspberry Pi board.
Look up Ohm's Law for more information on these calculations.
What are the differences between digital and analog computer?
Digital Computers works on digits like-0 and 1 .
Analog Computers works in continuous variable .Input source for these computer should be Analogu. example thermometer,speedometer, ammeter.
They are mainly used in scientific,research field and medical field
Analog computers (there are still some out there) use linear combinations of voltage amplitude (or currents or frequencies or phases) from the inputs to determine the required output sequence; digital computers use two-state variables that are either "on" or "off" (true or false, 1 or 0, yes or no) as logical building blocks to derive a digital output sequence from the digitized input. Digital signals may also be converted to analog, and vice versa, so you could have a series of a/d converters, a digital computer, and d/a converters to simulate an analog computer, or a communication channel, as in digital telephones.
Answer--The difference between an analog and digitial computer is the type of data they process. Analog computers process measured data. A speedometer in your car is a common type of analog device. A digital computer processed descrete data (digits). In this case 0 and 1. Digital computers are most common. PC's, MAC's are digital computers. A big difference is an analog computer's output can vary even if the input is identical. A digital computer can be very precise. For instance, a gas pump might tell you that you pumped in 5 gallons of gas but you could have gotten 4.99 gallons or 5.01 gallons. If you asked a digital computer to add 5 and 6 together, you will always get 11. By the way. A gas pump is actually a hybrid computer. Although it processes measured data, that is how much fluid has passed through the gas hose, the data displayed to you, the amount of gas and how much you owe is in a digital format.An Analog computer uses continuous variables for mathematical operations and utilizes mechanical or electrical energy.
The difference between an analog and digitial computer is the type of data they process. Analog computers process measured data. A speedometer in your car is a common type of analog device. A digital computer processed descrete data (digits). In this case 0 and 1. Digital computers are most common. PC's, MAC's are digital computers. A big difference is an analog computer's output can vary even if the input is identical. A digital computer can be very precise. For instance, a gas pump might tell you that you pumped in 5 gallons of gas but you could have gotten 4.99 gallons or 5.01 gallons. If you asked a digital computer to add 5 and 6 together, you will always get 11. By the way. A gas pump is actually a hybrid computer. Although it processes measured data, that is how much fluid has passed through the gas hose, the data displayed to you, the amount of gas and how much you owe is in a digital format.
An Analog computer uses continuous variables for mathematical operations and utilizes mechanical or electrical energy.
Analog computers, also called continuous computers, calculate smoothly changing variables using direct analog representations of those variables (e.g. 1V per 1000 gallons of water).
Digital computers jump suddenly at intervals from one coded value of a variable to another. Most modern digital computers use binary codes to represent these values: whether the values are integer numbers, real numbers, symbolic characters, etc. The exact binary representation of each data type is coded differently. Values between defined codes for a given type cannot be represented on a digital computer.
Why memory is divided into initialized and uninitialized areas?
The program's data segment. This area of memory is allocated by the linker and is used to store the program's global variables, static variables, static arrays and constants. Constants are always initialised, as are static variables, but global variables and static arrays need not be initialised.
1What three things do electronic hardware devices need in order to function?
1. voltage (difference in potential)
2. circuit (path)
3. a load (work to be done)
#3 in the above answer is incorrect.
Here is a simpler/more accurate answer to the question:
- Power supply (the device need electricity in order to run)
- Software (set of instructions to tell the hardware what to do)
- A method for the CPU to communicate with the device (i.e. a system, or data bus (aka the path)).
Even more simpler is...
1. Power
2. Load
3. Ground return
Why do systems not use more or large cache memory if they are so useful?
cache is more expensive and it will increase the cost of the system terribly.
processing of more than one cache will complicate the design of CPU and increase the burden on CPU.
What can you power with 10 volts?
You can power various electronics such as small appliances, LED lights, and electronic devices with 10 volts. However, the specific devices will depend on their power requirements and whether they can operate within the voltage range provided.
Difference between array processor and multiprocessor?
an array processor can handle multiple data elements simultaneously,in a parallel fashion, but a multiprocessor handle multiple processes simultaneously which may include more than one data element in each process...
An array procesor is optimized for array operations, has its own set of instructions, large memory block moves, logical operations on many array elements, etc and may itself be multi-processor or massively parallel. It has an interface where a host loads memory locations with the array to be processed (or perhaps a data file), then the array processor uses its specialized structure to do what was asked of it on the array, then tell the host is done and the result may be found in memory locations or perhaps a data file. Many of the jobs supercomputers do are array operations, the specialized capabilities can cost thousands of dollar per CPU second but they can do array operations that might take years for slower general purpose computers.
An array procesor can also be smaller, a graphics processor handling the video display is an array processor.
A typical operation is move the image to the right, move all the pixels to the right..
A general purpose computer may be multi-processor (Intel's multi-core).
