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Computers
This category includes questions and answers about computers and everything related to computers.
48,002 Questions
10 situations that can be represented by means of graph?
Financial history
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grade history and analysis
Where are boolean operators used?
Boolean operators are used in programming. It would be hard for me to explain exactly how they are used in programming without giving you a programming course, but I can tell you basically what they do. The main boolean operators are AND, OR, NOT, and XOR (exclusive or). So: * (true AND true) makes true * (true AND false) makes false * (false AND true) makes false * (false AND false) makes false * (true OR true) makes true * (true OR false) makes true * (false OR true) makes true * (false OR false) makes false * (NOT true) make false * (NOT false) makes true XOR is the same as OR except that it only allows one or the other to be true; not both: * '''(true XOR true) makes false''' * (true OR false) makes true * (false OR true) makes true * (false OR false) makes false Boolean operators can be mixed together like this: NOT (true XOR (false AND true)) makes false In programming, you often use symbols to represent these instead of writing out the words. OR is , not is !, and AND is &&. -DJ Craig They are often used by search engines. If you put in "Bob" AND "Smith" you would get results that have both Bob and Smith in them (say 150 results). If you put in "Bob" OR "Smith" you would get any result with Bob or Smith (say 3000 results). If you put in "Bob" NOT "Smith" you would get Bob Jones, but not Bob Smith. Not all search engines use these. And some use other terms for them.
What is the ASCII code in binary and in decimal for a lowercase z?
Lowercase z is 122 decimal, 7a hex and 1111010 binary.
What skills do you need to be a computer programmer?
Well first off, you need to know how to spell programmer. (you spelled it wrong).
J.K.
You must have a knowledge of the programming language.
Ex. C#, C++,.NET,Flash, Java.
You must have a sense of logic, and be good at math and physics.
What are the misuses of Internet?
Some misuses are:
- downloading music that you didn't pay for
- copying copyrighted pictures
- hacking into emails
- harassment
- stalking
- fraud
If it's illegal in real life, it means you can't do it on the computer. Contrary to some self-serving beliefs, actions taken using the internet have effects on real people in real life.
What is machine dependent assembler features?
1) Instruction format and addressing modes. 2) Relocation. For details refer "System Software By L.L.Beck" BY:: SUNIL SHARMA (sunil13982@gmail.com)
A: Most op amp feature a 90 Db noise ratio rejection. For a 741c it varies from 70 to 90 Db ideally the bigger the number the better.
What are the five latest computer inventions?
i want an answer to the latest computer devices i want an answer to the latest computer devices
What is data that has been processed called?
Actually, Processed data that conveys meaning and is useful to people is called INFORMATION, not output.
Response: Maybe true, but the answer to the question given is OUTPUT!
What will happen if you restart your computer?
New Computers Reaction: Nothing, it will just restart your system again.
Old or Present Computers Reaction: Nothing, or sometimes it say an error but you have to play with it like try out the options they offer in the error state. but soon it will turn out okay.
What is the artificial language designed to communicate instruction to a computer?
The type of computer language you are referring to are called high-level languages. High-level programming languages are very abstract and allow humans to better understand the source code by writing it in a human-readable fashion. Below is an example of a snippet of C++ code, which is a high-level language.
int n1 = 1;
Anyone can tell what this does just by looking at it. This statement declares an integer variable with the name n1 and initializes it with a value of 1.
What Machine language is an example of a high-level language.?
There is no program that can translate machine code to a high-level language. The best you can do is disassemble the code. This produces code that is similar to assembly language, but which lacks variable names and comments. Even a skilled programmer will need to spend hours disentangling the code in order to make it readable -- but you can never restore the code back to its original source code, no matter what language it was written in.
Information system input devices?
Input devices transfer data to an information system and the system processes the data. There are manual input devices and direct data entry devices that are used. Manual devices include keyboards and scanners. Direct data entry devices include smart cards and optical mark recognition.
Why won't my computer play audio?
Check your speakers. Are they plugged it to the power outlet? Are they hooked up to the CPU. Are they turned on?
Next thing you need to do is check the sound level on the CPU itself this can be done by double clicking the little speaker next to the time down at the bottom right hand corner. if that's not the issue it could be your video card is shot.
Do you need to be an excellent computer programmer to be an engineer?
No. There are many engineering jobs, even among those closely associated with computer programming, that require little programming skills. However, every modern engineer will need to handle complex technical computer programs, which often include a programming-like aspect.
For example, a civil engineer designing bridges does not normally need computer programming skills per se, but will use modelling software and mathematical software packages to design and test the design through simulation.
Many of the more senior software-related engineers may not, or no longer, be excellent programmers in terms of knowing every aspect of the programming environment inside out. The task of such a person is to understand complexities on a larger scheme, work out solutions and specify those while others, often more junior programmers, will need excellent programming skills to implement these solutions correctly and efficiently.
Few, if any, present day engineering jobs will come without requirements for programming and mathematics, but the required proficiency varies.
What is the binary code used for?
binary code
(computer science) A code in which each allowable position has one of two possible states, commonly 0 and 1; the binary number system is one of many binary codes.
Source: http://www.answers.com/binary+code?cat=technology
What card translates binary data into images on a computer screen?
If there is a dedicated card, it's commonly called a graphics card. Some computers have a graphics chip set on the motherboard, this is called integrated graphics. These are usually inferior to a dedicated card, but much cheaper.
Can you have in-out parameter in a function if not then why?
because function have return sts thatway it is not necessary out parameter to function
What is the most important component in a PC system?
The central processing unit, or CPU. But to be useful you also need working memory (RAM), mass storage devices and at least one output device. Input devices are optional in the case of servers.
What is the largest technology company in the world?
If you a referring to largest companies with the most revenue, it would be ExxonMobil with a revenue of $486.429 billion at the end of the 2011 fiscal year. If you are referring to the largest company by number of employees, it would be the United States Department of Defense with over 3.2 million employees.
What are the advantages and disadvantages of computer in Fashion Education?
Advantages
Sharing devices such as printers saves money. Files can easily be shared between users. Network users can communicate by email. Security is good - users cannot see other users' files unlike on stand-alone machines. A file server is easy to back up as all the data is stored in one place. A computer allows a person to manipulate data easily and quickly, create text documents, edit them, print them, manipulate images, print them, send text and images over the Internet, download information over the Internet, interact with other people easily from home, keep records of transactions, activities, plan trips, and generally do far more than a person without a computer. Computers are very useful to make everyday life a lot easier. You can check the weather, email, search items, buy things type papers and much much more. You can also play games and post blogs and other stuff. People use computers in many ways. Can be used in business, inventions and scanners.
Computers help children to be in control of their experience, to set their own pace, and to select the level of challenge with which they feel comfortable. Computers help children to use all of their senses to extract information. Computers fascinate kids and can draw their full attention, which often results in a deeper focus and concentration. Computers enable children to learn through creating, just as they gain hands-on knowledge and understanding when they build forts, make up stories, and paint, increase their skills. Good educational software enables children to develop and practice a broad range skill. It can help them learn, for example, about letters, numbers, shapes, colours, and rhythm. Good software can also help children develop their understanding of cause and effect, higher order problem solving, procedural thinking, and creative expression. Today, the wide range of multimedia available for kids in India is really amazing. Computers are helpful because they offer a wide range of functions and services that are not available anywhere else. There are four main uses: word processing, internet/communications, digital video/audio composition, and desktop publishing.
Disadvantages
The teenagers of today's society have changed dramatically due to the Computer. Nowadays, the majority of teenagers have a PC and it has played a key role in their lives. Teenagers need to be equipped with knowledge of computer technology, as most things in life require the use of computers. One disadvantage of owning a computer is the information that students can access from the Internet. The Internet has also made the youth of today quite lazy, especially in terms of their education. If a student needs to research information for school, they merely access a relevant site and download the information, rarely paying attention to what is written. Purchasing the network cabling and file servers can be expensive. If the file server breaks down the files on the file server become inaccessible. Viruses can spread to other computers throughout a computer network. There is a danger of hacking, particularly with wide area networks.
Computers are very engaging on children as well as adults. Kids with access to software that is not age appropriate may be exposed to such negative influences as violence, strong language, and over-stimulation from fast-action graphics.
In a C source program, the basic element recognized by the compiler is the "token." A token is source-program text that the compiler does not break down into component elements. Syntax
; token: : keyword identifierconstant string-literal operatorpunctuator The keywords, identifiers, constants, string literals, and operators described in this section are examples of tokens. Punctuation characters such as brackets ([ ]), braces ({ }), parentheses ( ( ) ), and commas (,) are also tokens.
What is a reliable computer networking company?
A reliable computer networking company can be found in your local metro area on the ThomasNet website and Ranker has a list of the largest firms in terms of profit. Cisco is regarded as one of the most reliable network hardware producers.
