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Computers
This category includes questions and answers about computers and everything related to computers.
48,002 Questions
What does system administration generally mean in computer terminology?
System administration generally refers to configuring a computer or compter systems, software, Databases etc. It involves creating users, user groups, accesses, setting up network configurations, IP addresses and so on. It involves installing software patches such as the Operating System upgrades. It may also involves some amount of computer hardware knowledge.
Difference between LAN and WAN?
A LAN is a Local Area Network. Local is generally referred to a network contained within a building or an office or a campus.
You might have a LAN for example on a University campus or between office blocks in an office park.
A big corporate perhaps like Anglo American, would generally have a LAN that might span several buildings.
To set up a LAN -relatively speaking- is cheap. If you want to put an extra couple of network points or an extra couple of devices on the network
A WAN is generally slow. If we compare that to a LAN, we said that Ethernet could run up to 1000 Mbps, currently, certainly in South Africa, the fastest WAN is 155 Mbps, so you can see in a LAN we can talk up to 1000 Mbps whereas in a WAN, at the moment, currently,
WAN is expensive. If we look at the path of telecommunications, we need to connect two offices, one in Pretoria and one in Johannesburg together - it 's an expensive operation even for a slow line.
LANLAN (Local Area Network) is a computer network covering a small geographic area, like a home, office, or group of buildingsNetwork in an organisation can be a LAN
Typically owned, controlled, and managed by a single person or organization
Typically owned, controlled, and managed by a single person or organization
LANs have a high data transfer rate
Have a small geographical range and do not need any leased telecommunication lines
one LAN can be connected to other LANs over any distance via telephone lines and radio waves
WANWAN (Wide Area Network) is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundariesinternet is the best example of a WAN
WANs (like the Internet) are not owned by any one organization but rather exist under collective or distributed ownership and management
WANs tend to use technology like ATM, Frame Relay and X.25 for connectivity over the longer distances
WANs have a lower data transfer rate as compared to LANs
Have a large geographical range generally spreading across boundaries and need leased telecommunication lines
Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites
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What is the best way to clear a computer of sensitive data?
-MOST SECURE- Take the hard drive out, bash it up with a hammer, burn it, and chuck in in the sea. Then replace with new hard drive and install operating system of choice. -SLIGHTLY LESS SECURE- Failing that, next best option is to recover computer to factory settings. Depending on manufacturer this can either be done from an application in windows, or by pressing a certain key(s) (often F10) when the computer is booting up. *Please be aware this will remove all files, folders, programs that were not pre-installed* *I take no resposibility for you deleting files you want* After warning you that this will delete all files and folders, I remembered that most manufacturers now partion the hard drive. This will shows as two hard drives under "My Computer". Only one of these gets fully deleted, so check the other for sensitive files. -CHECK CHECK AND CHECK AGAIN METHOD- If you don't fancy the sound of that, a lot of time and a fine toothed comb is in order for you to search every folder on your hard drive. To my knowledge there is no program that will search out and delete files which are unwanted in the way you want.
A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. Networks are commonly categorized based on their characteristics.
What actions should the networks administrator takes if the networks fails?
In general the network admin should 1: determine the problem 2: fix the problem 3: restore the network. In mission critical situations where restoring the network is a priority, then the admin may want to reverse that order. In less mission critical networks it's likely that some time may be spent determining the problem, but if too much time has passed and the organization may be affected, the network should be restored. In a test network, or in situations where the network continues to fail, the netwrk administrator may have no choice but to track down the problem first. An exact answer to this question would be possible given more information - is the network itself down or is a key server down- for example.
If what you're trying to say is that when you try to install software on your Windows Vista from an old disk for you HP PhotoScanner 1000, the problem might be that the software isn't supported by Windows Vista. A way to check is to see on the disk if it says 'Vista' under the Windows operating systems supported. I have checked the website already for you, and sadly, Vista isn't supported. If you want to see for yourself, do this: 1). Go to http://www.hp.com/. 2). Click on "Support & Driver Downloads" on the left side of your internet browser. 3). Select "Download drivers and software (and firmware)" and type in"C9900A" (your product's SKU Number) in the space provided. 4). The page clearly states that Windows Vista (classified under 'unlisted software') is not supported. So, here is my advice to you, dear friend: buy a new scanner.
There are far too many variables to answer this question accurately, but, for the most part, no. If we're dealing in raw processing power and not real-world performance, that is. ARM processors are generally focussed more on conserving battery life and not on raw performance.
In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs. Flip-flops and latches are a fundamental building block of digital electronics systems used in computers, communications, and many other types of systems.
How are computers used in a football game?
you see, coaches use computers to, like, play minecraft and WoW while the players play the game. lazy coaches. they're so stupid.
A computer can bring us happiness?
A computer can bring you happiness if you enjoy searching the Internet, watching videos, playing games, or chatting with friends.
Which hot keys will hibernate your computer?
This depends on your operating system:
Windows 7 requires you to establish one.
Windows Vista also requires you to create one.
Mac OS X: Option-Command-Eject will put your computer to sleep.
What temperature should office be where computer is when temperature is cold outside?
It depends on your country's legislation. In the UK, employment law states the temperature of businesses must be a minimum of 18 degrees Celsius within one hour of the start of the working day.
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A server room or similar in which no-one works except on maintenance tasks may be cold to keep the electronics cool, but the question does specify offices.
Which type of address is used in Ethernet to direct data to a specific computer through a hub?
Really depends if the hub is connected to a modem and an active ISP then it would be a public IP address from the ISP. If your hub is connected to a router, then it would be a private IP address provided by the router. There are different types of hub, I can post the link for you the varieties. If only computers are connected to the hub, then no ip address.
How do you Download images and other content from the Web?
you right click and then click save or save as
How much paper would be saved if 150 students use laptops?
people will be able to see inappropriate web sites ha ha ha so funny add me at shoshannah bignose on face book
What is the ip address of linerider.com?
This may change.
If you are Windows open Command Prompt and type ping linerider.com. Do the same on Linux but just with the shell.
From both you will see an IP number such as 1.2.3.4. That will be the IP address of the web server hosting the site.
