0
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 are some common uses of ROM -Read-Only Memory?
Some common uses of ROM are video game discs, and DVD movies like Iron Man and Bee Movie, just about any electronic device that can't be altered.
A-CRC requirements
1-the sender and receiver agree upon a generator polynomial in advance, before transmission starts.
2-both the high and low bits of the generator must be 1
3-to compute checksum for a frame, the frame must be longer than the generator polynomial
B-CRC Steps
assume message=M(x)
generator polynomial=G(x)
degree of G(x)=R
1-Multiply M(x) by xR giving R zeros in the low order end of the frame
2-Divide the result of the 1st step by G(X), using modulo-2 division
3-Add the remainder of the 2nd step to M(x), thus placing up to R terms in the
R low-order positions
C-CRC Error Detecting capability
assume a generator polynomial of H Bits
1-all single bit errors
2-all double bit errors
3-all odd number of bit errors
4-all burst errors < H
5-most burst errors >=R
What is a million bytes called?
Almost 1 megabyte because 1 megabyte is a unit of computer memory or data storage capacity, equal to 1,048,576 (220) bytes.
Can motherboards running Intel core 2 duo also run core i3?
No. Core 2 is on a different socket type. The i3 will not fit into the core 2 socket, and vice versa.
How can you replace a sony VAIO laptop damaged sound card?
you can replace the sound card from store. if it is in warranty then contact to help line.
Can a glitch make your screen go blank?
i don't know about black, but i had an unforrtunate glitch with camstudio which made my screen flash different colours when i clicked the window called flashing (go figure =/ ) The only way to fix that was to restart my laptop, which isn't really good for it.
Dunno about straight out black, but my flashing screen definitely had some black in it.
If you are referring to Manitoba, then no, Manitoba is a Canadian province (state).
Why do math coprocessors enhance the capabilities of an ordinary CPU?
They simply make it easier to do floating point instructions.
Before the 486 computers, math processors (or floating point units) in IBM compatibles were optional. The 486DX was the first CPU to include a floating point set as standard equipment. Intel did release the 486SX which was much like the 386DX, which had no floating point set.
Most of the older programs that required floating point instructions were compiled with floating point libraries. These were instructions that used the CPU to emulate a math coprocessor. The software would call the floating point command just like the coprocessor was there. The CPU would throw an exception that it didn't understand the command, then the exception handler would send the command to the floating point library which would then execute it.
But these routines were slow and the CPU had to be tied up to run them. A lot of the floating point libraries also had floating point processor detection routines. So if a math coprocessor was detected, then all the software interrupts used by the emulator sets would be routed to the math coprocessor. So when the CPU refuses to execute an instruction, the coprocessor takes over.
In certain cases, the CPU can continue with the next instructions while the FPU is busy if there is no risk of a race condition. A race condition is when there is a chance that the result might not be there when it is needed. For instance, you don't want the CPU to process the results of the FPU before the results arrive, or the CPU will get random garbage from memory and act the next instruction upon the garbage. Then the FPU puts its result in that area of memory too late. So one way around that is the FWAIT instruction. That pauses the CPU while the FPU finishes to prevent a race condition.
What is the maximum power output of a class 2 power supply?
The maximum power of a class 2 power can be between 40-50v. You should always make sure you are aware what is the maximum output for your electronics.
What is the thickness of the wire used in house wiring?
Electrical conductors are measured in gauge (AWG). There is not in gauge common in a house, as several are used to conduct various currents. Common gauges would be 14awg, 12awg, 10awg 8awg and 6awg. 14 and 12 being the bulk of wiring for switches and outlets. Larger sizes for higher current (amps) loads like electric stoves, dryers and air conditioning. Note : The gauge (AWG) moves from the larger number as the smaller gauge to the smaller number as the larger, that is 14 is smaller than 12 and 12 is smaller than 10 etc....
What is the automatic puncturing device?
A type of lancet that is spring loaded, is self-contained, and has a mechanically controlled skin puncture depth.
Where is the bios program on the computer and what type of processor do most computers use nowadays?
Most computers will use F1 or the DELETE key to initialize the BIOS console. Most computers are shipped with AMD these days.
What is a local area network card?
A LAN card is an ethernet card that plugs into the ISA, PCI or PCIe slot in your PC and gives the system the ability to utilize a LAN as a communications link to other PCs or the internet.
I inserted a CD in my computer but the information is not showing up in my computerwhat should i do?
When a CD has been inserted and is not showing up in "My Computer", there is a possibility that the CD is faulty (has scratches or was poorly written). The CD Rom drive may also have read errors.
Saguaro Federal should use Token ring protocol, as it appears there are multiple locations. Ethernet protocol could be appropriate if everything was located in the same building.
why kaspersky is safe?
How do I unlock my computer which is frozen and there is a red light with a lock lit up?
you just get a hammer and hit it a lot. or unplug it and take it to your nearest computer specialist. HAAHHAHAHA JK YOU'RE JUST SCREWED. and go to da club.
Is the Ethernet port standard on all pc's and laptops?
No. Many older desktops, and even some newer low-profile laptops (such as the MacBook Air) have no built-in Ethernet jack.
Duo processors run windows 64 bit?
some are 64 - some are 32 ----- if you run DXDIAG you should be able to find out the model number if you do, just google it!
