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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
The width of a data bus is called?
The width of a data bus is referred to as the data path size. An example would be a 16 bit bus can transmit 16 bits of information
A flexijack allows you to connect many different things with one input. It is frequently found on sound cards.
Which ports transmit data to up to 127 devices in a daisy chain?
USB ports transmit data to up ti 127 devices in a daisy chain.
Is a Philips 200CW monitor lcd or crt?
The Philips 200CW is a LCD or Liquid Crystal Display.
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What does disc burner or software not found mean ontunes burner for CD?
Means Itunes cannot find an application that can burn cds
The Processor is the brains of the computer to process the information. All of the data that you are working from is from the Hard Drive.
What are computer connector ports that are common with many modern audio interfaces?
Universal Serial Bus (USB) ports are now the industry standard for connecting peripherals. Most MP3 players are capable of being plugged directly into a USB port.
What is the next up from a gigabyte?
1024 Gigabytes=1 Terabyte (TB). Next are Petabyte (PB), Exabyte (EB) and Yottabyte (YB)
A modem is connected to a computer and a phone line. When the internet is required the modem dials up and ISP and connects to the ISP computers by a phone call. The phone call remains connected to the ISP computer until access to the internet is no longer required.
What is scanline coherence and edge line coherence?
With a rectangle we notice that we can exploit coherence
-If the fill is solid black (say) then all the pixels are shaded the same
-Each of the length of each span is the same
o(this is scan-line coherence)
-It is possible also to exploit spatial coherence up to the edges
oi.e., if point (x,y) is inside the polygon then so is the point to the left and the right (unless it is an edge/ boundary point )
-Thus we can draw horizontal spans for every y point in the rectangle
When POST runs but then the screen turns blue with no text What is a possible reason for this?
A possible reason for this error is a corrupt Operating System (OS) installation. It may also mean the drive on which the OS is installed is unreadable.
What should not be plugged into a usb adapter?
Objects or items that do not meet the requirements or include the ports suited for such adapters should not be used. Objects that are wet or have anything on them that would not normally be considered safe to use around plugs and outputs should not be plugged into the usb adapter.
What is the electrical voltage are supplied by the power supply on your system?
The electric voltage are energy to my system.
How does boot up process work?
There are many steps that take place before your computer boots up. This is a long explanation, so be prepared.
BIOS:
This is the first thing that happens. It stands for Basic Input Output System. It is actually a hard-coded piece of software (or was; you can update your BIOS, so it is now just a memory chip that is kept operating). This means that it is a combination of hardware and software. The BIOS keeps track of settings that you have in a memory chip. It has to keep track of where to boot from, what graphics adapter to use, and can also keep track of what time to automatically boot up, and even a password to let you change settings. (you can access the BIOS by pressing a button before you see windows start, usually F2. You have to do this while the only text on the screen is black and white and all pixelated. Other systems will display a pleasing picture so you don't have to see the ugly text. I don't recommend pressing F2 unless you know what you are doing. I repeat DON'T.)
First, the BIOS checks the first storage device in the boot order. This is usually a CD drive, which is why you can boot from your operating system installation disk. If there is something there, it tries to boot. If not, it goes to the next entry. If it reaches the end of the list, and the computer hasn't booted, DOS style words come up and say it couldn't boot.
Let's say the computer is booting from the hard drive. The BIOS checks the first sector of the drive (yeah, the hard drive isn't only a disk, but it also is organized into tiny pieces that are easy to work with). That sector of the hard drive is the Master Boot Record, MBR. It holds information about how to boot up the rest of the way.
MBR and boot program:
The BIOS follows where the MBR tells it to go. The MBR will point to a boot program. This program starts to load what it needs to operate. After a little bit, the program has loaded enough to take over from the BIOS.
The rest of the boot:
So now, Windows (or Macintosh, or Linux, Unix, or whatever) has woken up enough to load itself. At this point, it needs to load how to log you on, system services, everything that supports the end result of you browsing the Internet or opening a document. A minute or so later, at the logon screen, the computer has basically finished booting up. It has a few last-minute things to do while you log on. Speaking of that, it still isn't done. If you have a Windows computer, the startup folder executes. You can put shortcuts to your favorite programs in there, like Microsoft Word, a movie player, or whatever, and every time you log on, it will open as if you opened it yourself. But beware! Everything in that folder will open every time, and that takes processing power and time. Use the startup folder sparingly.
Overview:
BIOS looks for the Master Boot Record, which points it to the boot program. The BIOS starts loading the operating system, until it can load itself. The boot-up ends when you have logged on and startup programs finish loading.
Quite lengthly. Hope this is what you were looking for.
Can I plug a USB 2.0 hub into a USB 1.1 port to increase port speed?
No. The root hub (the port on your computer) determines the maximum speed of all devices. If you plug a 2.0 hub into a 1.1 port, it will operate at 1.1 speeds. To gain a faster speed, you should install a USB 2.0 controller card.
How do you turn off the narrator for the visually impaired?
Turning the narrator on and off for the visually impaired depends on the device you are using. Check your devices settings folder or refer back to the user manual.
What is the difference between instruction and microinstruction?
In a microprogrammed processor, the hardware
doesn't directly execute the instructions in the
ISA
The hardware executes very simple micro-operations that
are used to implement the instructions
Each instruction specifies a sequence of micro-operations
that are used to implement the instructions
An upgrade is something that can improve something can have an upgrade for most things
