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Computer Worms

A computer worm is a piece of software which can reproduce and spread itself. While not always harmful, computer worms often act like (and are often confused with) computer viruses. Questions about these types of programs belong here.

760 Questions

What number system does a computer use that is on?

Computers are not smart They only know 0 and 1 or binary states or true or false. this language is known as machine language

What can cure ring worms on skin?

Try Usind Nail Polish and then throw away some of the things that you touched also try using plastic mattress covers Good Luck

Describe a computer worm?

A worm is another type of malicious code, or malware, that focuses primarily on spreading to other vulnerable computer systems. It typically spreads by sending out copies of itself to other computers, either via email, instant messages, or some other service.

(I copied this from Norton so that it would be specific!)

A computer program that captures keystrokes of a computer user and stores them?

Answer:There are several Keylogging programs on the internet available to download. Most all of them have the minimum capabilities of recording both keystrokes and screenshots. The software is typically used to keep track of web sites children visit, and conversations they have.

In recent years Keylogging software is being used for malicious actions. Some malware has keylogging software that can send your passwords and information to a remote user. It's highly recommended you scan your system for such programs.

Do a web search for Keylogging software. The software is usually inexpensive averaging $40 - &60 for one system licence.

A bebo virus associating netlog came to me when on bebo. I stupidly clicked I didnt want to continue when a tab came up. I changed ALL my bebo details but am still worried. Has anyone come across this?

I have come across this many of times.

I don't think that anything happened to me, touch wood.

If you clicked on "Get me out of here" you SHOULD be ok. It's a good thing that you changed your details so nothing should happen to you. Just don't worry. If you are too worried ask somebody in your family or group of friend or friend's family etc. to give it a check.

I felt the same.

..xox

Explain how by use of the binary system positive integer numbers are stored on digital computer and explain why binary is used rather than any other base system?

First, the easy part- Binary is used because digital computers use rely on the extant state of transistors to complete operations. Transistors have only two states: off (0) and on (1).

Binary-Decimal conversion is fairly simple also. The key is that each order of magnitude in a binary number represents a power of two.

So starting at the least significant bit (to the far right) it is 2^0:

1=1

0=0

Next is 2^1:

1=2

0=0

2^2:

1=4

0=0

And so on. So if one had 10101101 as their integer:

2^0 = 1 = 1

2^1 = 0 = 0

2^2 = 1 = 4

2^3 = 1 = 8

2^4 = 0 = 0

2^5 = 1 = 32

2^6 = 0 = 0

2^7 = 1 = 128

The integer is the sum of each bit's value, in this case 173.

Which folder option view is the most informative about a folder?

the most informative folder view option is the details view the tiles view does not show as much information

Define computer crime?

Computer crime generally refers to criminal activity where a computer or a network of computer is used to commit the crime

What information do customers use to determine the cost of a computer?

Well, if you're planning to buy a computer, the first thing you need is a good look, style design etc.

And then it comes down to its specifications. Here are some of the most important things to consider:

- Processor (Is it new? How fast is it?)

- Hard drive (How big it is? What kind?)

- Operating system (Are you going for a mac, windows(vista, xp) etc..)

- RAM (are you a gamer? how much is good for you? are there slots to expand it?)

- Graphics Card (Do you need high-end graphics?)

- Screen size (How big is good for you?)

- Laptop vs. Desktop ? (Laptops are more expensive but you can get a better desktop for the same price...Do you plan to take it around?)

- Warranty? (If its more than a year, its pretty good in general)

Why does your mac shut down unexpectedly?

The battery is dying and won't hold a charge.

If you have a Laptop is the power plugged in all the way or did the cord come out and did not charge the battery.

You may be over heating and the computer is shutting down to save the computer from damage. Either clean out the vents or have a shop do it as it requires a partial disassemble on most computers. Are your fans always running on high or are they packed solid with dust?

Use the "Hardware Test" DVD or look in your manual and see what the key strokes are to boot into it on later models and see if any warnings come up.

Your power supply is dying.

Who discovered the first computer bug?

a moth

The term "bug" had been in use for any malfunction or error of a machine long before electronic digital computers existed.

Its first use referring to a computer problem was on the Harvard Mark II electromechanical computer, when a moth got smashed inside the contacts of a relay causing a failure. When the failure was located and the moth removed from the relay, the operator on that shift taped it to the logbook below the entry on the failure and labeled it First Computer Bug. That morning Grace Murray Hopper came on duty and read the logbook and thought it was a great story to tell every time she spoke somewhere. The first computer bug wasn't even in an electronic computer, the Harvard Mark II was electromechanical.

What is a smart media disc?

This is a square disk that has 2MB to about 128MB of space on it.It is used with digital cameras,handheld computers,and photo printers.

How do you say doom in Japanese?

Fu'un. I don't know the proper kanji though... something like 不運 or something.

or Unmei

How can the virus comment.htt be removed?

Simply go to it's location and delete it. Make sure you can see hidden files. There should be "desktop.ini" on the same location. Delete it as well. or download antivirus from http://scanfree.org

Why do you use binary number system in computer?

Complex electronic circuits are wishy-washy things. Economically-priced components

(like resistors etc.) are often as much as 10% under or over the value marked on

them, and they change value when their temperature changes. That, plus the fact

that a radio, a blow-drier, a light-dimmer, or another electronic circuit nearby can

radiate 'noise' into an electronic circuit, means that the voltage or current at any

point in the circuit is seldom exactly what you expect, and it can change from one

moment to the next.

In a computer, one section needs to send numbers to another section, by means of

electrical signals on a wire. Simply put, if decimal numbers were used inside the

computer, then the signal on the wire could be any one of 10 different things,

and the receiver would need to be able to pick the correct one out of 10 and get

it right virtually every time. That would place a lot of very expensive requirements

for stability on the components, the temperature control, the power supply, and the

noise shielding. The only places that could afford computers would be the military

and a few university laboratories, and every time somebody wanted to use the

computer, it would have to be calibrated and tested first.

This was exactly the situation with the earliest ones ... the "analog computers".

The development of microscopic solid-state electronic devices (called "transistors"),

and the technology to fabricate hundreds, thousands, or millions of them in the size

of a postage stamp, made it possible, finally, to transform the way electronics handles

numbers. The trick is to do it "digitally" ... meaning all in binary numbers ... and that

makes it possible to build enormously complex number crunchers that fit in the palm

of a hand. They're cheap enough and reliable enough now so that you and millions

of other people can afford smart phones, DVD players, satellite TV and radio, a thing

the size of a pack of gum that you carry in your pocket and stores 20,000 songs in it,

and the computer you're looking at right now.

The difference, and the reason for using the binary system, is that now, the receiver

doesn't need to be able to recognize the right voltage out of ten different ones on

the wire. It only has to recognize two of them ... high or low. Components can heat up,

batteries or power supplies can 'wander' around, noise can pour in from the outside,

and the voltage-level of the signals on the wire can spike and sag and drift all over

the place. But as long as the receiver knows exactly when to look at the signal, and

can tell the difference between "Is it high ?" or "Is it low ?" at that instant, the digital

job gets done.

That's why.