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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.
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1. A unit of computer memory or data storage capacity equal to 1,048,576 bytes (1,024 kilobytes or 220 bytes).
2. One million bytes.
Usage In computer science and industry usage, the prefix mega- often does not have its standard scientific meaning of 1,000,000, but refers instead to the power of two closest to 1,000,000, which is 220, or 1,048,576. The calculation of data storage capacity (measured in bytes) is based on powers of two because of the binary nature of bits (1 byte is 8, or 23, bits). Thus, a megabyte is 1,048,576 bytes, although it is also used less technically to refer to a million bytes. Other numerical prefixes are interpreted similarly. With data transmission rates (measured in bits per second), a bit is considered as a signal pulse, and calculations are generally based on powers of ten. Thus, a rate of one megabit per second is equal to one million bits per second. However, in certain technical contexts, megabit can also refer to 1,048,576 bits. Similarly, the prefix kilo- refers to 1,000 or 210 (1,024); giga- to 1,000,000,000 (one billion) or 230 (1,073,741,824); and tera- to 1,000,000,000,000 (one trillion) or 240 (1,099,511,627,776).
Is a DVD player an output input or both?
It can be both, depending on where it is in the process. In most cases, it will be an output into another device, so it would be plugged into the input of the other item.
In a typical cable TV set up, the cable would go into the input of the DVD and the output of the DVD would go to the input of the television.
Is a blank music CD-R different from a blank Data CD-R?
It depends:
For computer CD-Recorder drives: No. They are exactly the same. However, when you burn the CD you can choose to burn it as a music CD or as a data CD.
For stand alone CD-Recorders: Yes. Stand alone CD-Recorders will only record on a CD, that has its Digital Audio Music format. Stand alone CD-Recorders are very picky about which CDs you use. Stand alone CD-Recorders will not record on a data CD-R.
A blank Music CD-R is designed for stand alone CD-Recorders.
A blank data CD-R is more designed for computer CD-Recorders.
However a computer CD-Recorder can either record on a Music CD-R or a Data CD-R.
What is the maximum recommended length for a standard RS-232 cable?
Depends what you mean by a serial cable - Fibre, Ethernet, RS232, RS485, RS422, USB, HDMI, SMPTE292 are all examples of serial communications media.
RS232 max length 50 ft
Ethernet max length 100 m
What is the difference between a physical drive and a partition?
The terms partition and volume are often interchangable and for most purposes the end user doesn't need to understand the difference. There is one however, and this is that partitions are physical separations on the hard drive, often but not always created by the user during installation of an operating system. Volumes on the other hand are logicalseparations of the hard drive. The difference for all intents and purposes is usually the same, but that logical systems of any sort only work within the context of the OS that is being used, where as physical systems will be permanent and recognized by any software.
What is the difference between Dial up DSL And cable?
The difference between Dial up and DSL connection, Dial up connection can only offer a top speed of 56k a second while DSL connectin ca The difference between Dial up and DSL connection, Dial up connection can only offer a top speed of 56k a second while DSL connectin can offer you speed of 6 Mb/sec and faster. DSL foes over your phone lines just like normal dial up that you need to be within range of your provider and they have to rent you a DSL modem so you can pick the DSL.
When was Douglas Engelbart born?
Yes. Dr. Douglas C. Engelbart is still alive today. The clever computer visionary was born on 30 January 1935. A link is provided to the Wikipedia article on the inventor of the computer mouse. And because they update fastidiously, you can use the link on just about any day and find out if Doug is still on this side of the veil with us. Why not drop by today and make his acquaintance? He's just a click away.
Witch three parts of the computer give output?
The three parts of a computer responsible for output are the data writing output, such as a CD drive or USB drive. The second thing is the display, or screen. The third is the speaker.
What computer hardware is used in banks?
Propietary ones. Custom made and they cost a lot $$$$$$ (millions range)
What is A rectangular area on the computer screen that contains a document or displays an activity?
window
What are the advantages and disadvantages of a serial port?
Having a serial port allows you to plug more stuff in you computer. i think The serial technology and the parallel technology are now old technology because of hardware like USB and Firewire. They are ports on the back of your computer. Serial ports transfers bits one at a time in a single file one bit at a time. Parallel ports transfers data 8 bits are a time across 8 wires. There are still serial ports on your computer, a serial port comes in 9 and 15 pins and is a male. Things that used to and sometimes still do connect to them are mice, external modems, PDAs and cameras. Parallel ports have 25 pins and is female. Most the time printers used to connect to parallel ports.
The serial technology and the parallel technology are now old technology because of hardware like USB and Firewire. They are ports on the back of your computer. Serial ports transfers bits one at a time in a single file one bit at a time. Parallel ports transfers data 8 bits are a time across 8 wires. There are still serial ports on your computer, a serial port comes in 9 and 15 pins and is a male. Things that used to and sometimes still do connect to them are mice, external modems, PDAs and cameras. Parallel ports have 25 pins and is female. Most the time printers used to connect to parallel ports.
How do you remove write protection in card reader?
1. The memory stick may have an actual physical switch to enable and disable write protection. Mine slid forward and back, very much like on a 3 1/2" floppy disk.
2. If your flash drive works fine at home and not at work it is likely your IT people have set security policies to prevent their use. This is to prevent people from copying company files and taking them somewhere.
3. If your flash drive is prepared ("formatted") to run in Windows and you put it in an Apple it will appear to be read-only, and vice versa. There is only one way to prepare a drive to be used on both systems simultaneously: it is called FAT (specifically FAT32.) Be aware FAT32 is old and you may run into its limitations.
What are the difference between input device and input media?
Your input device, for example a mouse, is connected to your input medium, your computer.
an input device is a device that is used to input or helps to enter data into the computer and an input medium is where the input device is detected e.g the slots
What is the technical difference between desktop support and halpdesk?
Desktop support is the one doing the troubleshooting on hand.
Helpdesk support is the one receiving the call and troubleshoot it remotely
How find speed of graphics card?
On a Windows based system, press the windows key + R. ÊThis will bring up the command line interface. Type in devmgmt.msc. This brings up the device manager. Open the Display adaptors tree and find the current video card in use. Right click and select properties for information on the video card.
What is the function of expansion bus?
Expansion buses basically enable you to install additional hardware in your system unit and PC. The most common type of expansion buses today is PCI and PCIe, and AGP. You can use PCI, commonly white on your motherboard,to install network interface cards, sound cards, etc.. And you can use AGP to install high end video graphics cards, and they are commonly brown on your motherboard. PCIe is another version of PCI, but allows for faster data transfers. ISA was the first type of expansion buses, and it was developed by IBM for use in their early PC. Computerguy1984
How do you clear an SD Digital card once you have transferred your photos to the computer?
your computer will ask you if you want to delete the pictures. or if you/ve already put them on the computer, you can delete them manually by scrolling through and deleting them one by one.
u stupid
A router is a networking device that helps relay traffic from one network to another, and vice versa.
For example, a typical broadband Internet connection router relays traffic from the private network within the home to the public (Internet) network outside. Rules dictate which portion of the traffic on either side passes through the router. For example, networking messages exchanged between a PC and a networked printer within the home will not pass the router and will thus not be "seen" on the public network, but a query to a public website, and its response, will.
Other commonly used routers include the WiFi routers, which relay traffic between a wired network and a wireless network.
Less common routers also handle different media, similar to a WiFi router. Examples include routers that relay traffic from a network using dedicated network cables to one that uses the power grid, and many others.
