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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 are the 5 voltages produced by and BTX power supply? +12v -12v +5v -5v +3.3v
If you mean how to create a login code with HTML, you need a tag called
How do you find out the power rating of your power supply?
You can find the power rating of your power supply by looking at the label or sticker on the unit itself. It should indicate the maximum power output in watts (W). You can also check the manufacturer's website or product manual for this information.
How important is Syntax in Excel?
Syntax is very important when writing Excel formulas. Each formula and function will help guide you through how to format the equation. Probably the most important thing to remember about syntax is to begin all formulas with the equal sign, or Excel will just interpret your entry as text and not calculate anything.
EXAMPLE: =SUM(A1:A12) [Adds the contents of cells A1 through A2]
What is the difference between cathode ray tube and flat panel?
The cathode-ray oscilloscope is an electronic display device containing a cathode-ray tube (CRT), used to produce visible patterns that are the graphical representations of electrical signals while CRT (cathode ray tube) is a tube that uses high voltage to fire electrons at a screen
How do you represent a negative number in Binary Coded Decimal?
All I know is that when a number is negative, you convert the decimal into binary and if it is negative you put 1111 before the binary digits.
What is Character User Interface CUI?
Character User Interface or CUI is like Graphical User Interface which is used for the Input and Output of the Data in the computer, except in the GUI apart from text there are also graphical contents present, in CUI there is only use of text typed one after another just as commands used in MS DOS.
How many input MUX you will get if 4 input multiplexers drive a 4 input multiplexer?
we'll get 4 input mux
cuz 2^4=16.... therefore the first 4 input mux has 16 o/p..
hence four-4 i/p mux are required to fill all 16 leads.
Difference between analog modulation and digital modulation?
Analog Pulse modulation is discreet in time but the formation is transmitted in continuous form. In digital pulse modulation, not only the time axis is discreet but the information is also in digital form.
Examples of Analog PM are PAM and PTM i.e pulse amplitude and pulse time modulations respectively.
Examples of Digital PM are PCM and PDM i.e pulse code and pulse delta modulations respectively.
What are the differences between binary signaling and digital signaling?
Binary refers to a system which may have one of two states. In computer science the binary numbering system is used where stored and communicated values are represented by 0 and 1. A digital signaling system would be based on an underlying stream of binary numbers so in most cases the two would be used interchangeably. If "binary signaling" where to be taken literally however it would describe a signaling system which communicates two possible states. The flag on a mailbox is a binary communication system, when the flag is up it signals that mail is available for pickup, when it is down there is nothing in the mailbox.
There are a great many ways in which you could interrupt a person while they talk. You could talk over them.
When were microchips created and how?
In 1958-1959 two men were working on the idea for different companies. One was Jack Kilby with Texas Instruments and the other was Robert Noyce who began Fairchild Semiconductor which will become Intel. Kilby has 60 patents to his name and is known as the inventor of portable calculator. His microchip was first used by the government for the minuteman missle. Noyce has 16 patents to his name.
What is the benefit of partitioning your drive?
Partitioning allows you to create a logical separation between different operating systems and data.
For example, you could have a windows operating system on one partition, a Linux operating system on another partition, and your personal data (My Documents in windows and /home in Linux) on a third. This allows you to wipe one of your partitions clean and reformat without having to backup the data on the others (say for example, your windows install gets a virus).
What is the difference between eeprom and flash?
A flash drive is a storage device that uses flash memory rather than conventional spinning platters to store data.
Random access memory (RAM) is a type of computer data storage. Today it takes the form of integrated circuits that allow the stored data to be accessed in any order, i.e. at random. The word random thus refers to the fact that any piece of data can be returned in a constant time, regardless of its physical location and whether or not it is related to the previous piece of data.
What program makes computer program tasks?
Python: Python is simply the best language for starting out with according to many people. Python, like most mainstream programming languages, is cross-platform. Python is also very easy to pick up.
C: Perhaps the most famous programming language of all time. C is the basis for many widely used modern languages, such as C++, Objective-C, and JavaScript. It is practically inevitable that you will one day need to learn C. For this reason, many programmers advocate it as the best starting language. However, you don't need to learn it if you want to just specialize in one programming language.
What is an unintended high-current closed connection between two points in a circuit called?
short or short circuit
Can lightning act as a power supply?
Since there is energy in lightning, this should be possible in theory. However, I haven't read about any project or proposal to get useful power from lightning. Perhaps you can invent something.
What does backward compatible mean?
It means that the new version of something will still work with things that the previous version worked with.
For example the PlayStation 2 is somewhat backwards compatible with the PlayStation 1 because you can play Playstaton 1 games on the PlayStation 2. It is not completely compatible however because not all of the PlayStation 1 accessories work with the PlayStation 2.
BIOS is short for basic input-output system - some simple instructions permanently stored in computer ROM. In other words, the instructions are available before the computer loads information from a hard disk or similar.
How is input and output is similar?
Input is where you add somthing eg.) a picture and output is sending it to someone.
The purpose of a circuit board holder is too help you to not use your hands as much as you usually do. And also in addition to a PCB holder a swively table vise like that.
What is Ergonomics of a computer?
Ergonomics is the science of designing safe and comfortable machines for humans. In computers, it plays an important role in the design of monitors and keyboards to avoid cumulative trauma disorders or repetitive stress injuries.
What are the different types of scanning devices?
as i resently found out there are many types of scanners. They are the flatbed, photo, sheetfeed, portable, slide, drum, hand, single sheet scanners.
Advantages of parallel computing?
Save time and/or money: In theory, throwing more resources at a task will shorten its time to completion, with potential cost savings. Parallel clusters can be built from cheap, commodity components.
Provide concurrency: A single compute resource can only do one thing at a time. Multiple computing resources can be doing many things simultaneously
Use of non-local resources: Using compute resources on a wide area network, or even the internet when local compute resources are scarce.
Limits to serial computing: Both physical and practical reasons pose significant constraints to simply building ever faster serial computers:
- Transmission speeds - the speed of a serial computer is directly dependent upon how fast data can move through hardware. Absolute limits are the speed of light (30 cm/nanosecond) and the transmission limit of copper wire (9 cm/nanosecond). Increasing speeds necessitate increasing proximity of processing elements.
- Limits to miniaturization - processor technology is allowing an increasing number of transistors to be placed on a chip. However, even with molecular or atomic-level components, a limit will be reached on how small components can be.
- Economic limitations - it is increasingly expensive to make a single processor faster. Using a larger number of moderately fast commodity processors to achieve the same (or better) performance is less expensive.
