Computers

Exampe of Boolean and usage in the real word

Operators

Operator

=

Equal to

!=



^=

Not equal to

<

Less than



Greater than

>=

Greater than or equal to

is null

Value is null

is not null

Value is other than null

like

Value is an instance of pattern-matching string

not like

Value is not an instance of pattern-matching string



Condition is a Boolean value



("Petar" === "John") //This is false



("Petar" === "Petar") This is true



 

if (condition) {

   code to be executed if condition is true;

}

You could say that there are 3-4 levels of touch typing

1. "Slow" typing: below 50 wpm:

2. "Normal" touch typing: 50-80 wpm: For many jobs that require typing, this is a good speed, such as being a secretary.

3. "Expert": 90- 120 wpm: For stenographers

For comparison, the fastest typers in the world can type at 170 wpm or above. Many of the top typers today however use Dvorak keyboards instead of Qwerty

It's major advantage is that it can be used anywhere, any time for any work.

The CPU (central processing unit or microprocessor or just processor) is "equivalent" to a person's brain.

The tower case is the equivalent to the human body which contains all the internal organs.

COMPUTER CRIMES are that crimes that effect the computer for example HACKING,SOME PEOPLE TRICK AND THEY SHOWS A BUMPER PRIZES AND WHEN A PERSON CLICK IT SO THEY GETS THEIR PERSONAL THINGS AND SOME MAKE FAKE ID AND EMAIL OR WEBSITE :D SO PEOPLE SHOULD BE AWARE OF ALL THESE THINGS :)

Some computers are just loud. Cheaper fans make more noise, and some systems don't make any attempt to reduce noise by throttling fans down.

If, on the other hand, your system -used- to be quiet, but has for some reason gotten louder during recent months... there is a possible solution.

Most new computers have a temperature sensor on the CPU (and on other heat-sensitive bits) a special circuit keeps track of this temperature and when it rises, increases the fan speed.

What happens is the heatsink (and fan) get clogged up with dust, so it dissipates less heat, the sensor detects this & cranks up the fan to compensate. Cleaning the dust out of your heatsink and fan may go a long way to quieting your computer.

You can get a can of compressed air at any office or electronics supply store. With the machine turned off & unplugged, open up the side panel & blow everything out.

Note: DO NOT use compressed air to blow inside your floppy, cdrom or DVD drives.

1. Spyware -- can be blocked or detected by anti-virus programs or firewall programs.

2. internet monitoring program(ie: WFilter) can work in passive monitoring mode, it analysis network packets to track users internet usage. So it can not be detected.

So you will buy more audio and video playback devices and software. The Dirty Dollar.

The file extension mp3 means that the file is an audio file, and is usually some sort of music file. However, mp3 can also be used for sound recordings that are done for businesses, and many other things as well.

CDMA means Code Division Multiple Access.

it's a way to have many users sharing one media (air for example, since CDMA is used in GSM communication)

Principle: each users uses a "spreading code" to cypher its data using usually a "XOR" algorithm with a code.

"1" XOR "1100" => "0011"

"0" XOR "1100" => "1100"

In order to be able to recovers the original signal, all users have to use "orthogonal codes" (cross-corelation = 0), these codes are usually from a Walsh Matrix (see Wikipedia for more details)

The receiver processes the corelation of the signal with all the sender's codes. The result which is the most relevant is said to be the original data. (see Wikipedia for more details on CDMA)

Prakash

ARPANET could be considered the founding technology behind contemporary Information Technology.

Completly depends on your computer.

Theres:

Power - Black cable with a 3 holes in the end.

Video - Generally a blue or white block cable.

Keyboard - Purple round end, or a USB end.

Mouse - Green round end, or a USB end.

Maybe also:

Internet - Generally a square end with a clip.

Speakers - Small green pin.

Microphone - Small pink pin.

They are the standard shapes and colours.. what you have might be different.

Choose "Load Defaults" in the mainteneance menu. Dell PCs.

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a device that is traditonal

1024 MB in a gig roughly.

1000 is what people refer to it as.

4.4 GB = 4505.6 MB Exact Which if rounded is 4506 MB

4.4 gigs = 4,400 MB

When people say they have a gig of ram, they are thinking 1000, but actually it is rounded because there is no perfect measurement for ram or gigs.

FOR SCHOOL, the correct answer is 1024 MB in a GB

1024 is how much a gig really is... But when people say 1 gig, they are reffering to 1024 MB.

Answer: Broadband Internet access, often shortened to "broadband Internet" or just "broadband" is a high data-transmission rate Internet connection. DSL and Cable Modem, are typically capable of transmitting 512 kilobits per second (kbit/s) or more, approximately nine times the speed of a modem using a standard digital telephone line.
Broadband is a type of high speed internet that is usually transmitted through a phone line.

ARPAnet was the predecessor of today's Internet. ARPAnet was the first network that was developed for military/defense use around the Cold War era until the organization was scaled down into DARPA.

It is both. The output device shows you images on the screen, while the input device allows you to interact with objects on the screen (e.g., touch the screen to select an option).

The acronym WIMP stands for Windows, Icons, Menus and Pointing device. The invention of the WIMP interface is credited to Douglas Englebart and the Human Augmentation Project at SRI in the late sixties. At the SRI lab, located in the area of California which came to be known as Silicon Valley, Englebart experimented with a number of clumsy-looking wooden mouse prototypes for selection and highlighting, menus, and text-based windows

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Buying electronics such as laptops usually have a good price tag during holiday shopping seasons such as black Friday. Places like Walmart, Best Buy or Target.

Most newer netbooks do not include a optical drive because most programs that require installation medium such as a CD or DVD would most likely be too resource heavy for a netbook.

The entire purpose of a netbook is just as its name implies, a slower computer designed mostly for net (aka internet) access.