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Computers
This category includes questions and answers about computers and everything related to computers.
48,002 Questions
What are the drawbacks of using electronic computers?
One of the biggest drawback is best illustrated by the expression garbage in - garbage out, meaning that errors are sometimes much harder to detect when using an electronic computer than when computing manually.
Another drawback is that work on a computer can be lost if the machine crashes or somehow loses data that has not yet been saved.
training can be expensive and if staff leave new staff will nead to be trained
Who is the first person to invent computers?
It is hard to say for sure, but several of the smaller minicomputers of the 1960s (e.g. DEC PDP-8) could and usually did sit on a desktop. However the term "desktop computer" was not created until the microcomputers of the 1980s and did not come into common usage until laptop microcomputers computers became widely available in the 1990s.
What are Uses of computers in the society?
In the real estate industry, there are three main computer uses. One is a program that creates the various forms used in listing and making offers on properties. A second is a variety of databases that show the current status of properties that are -- or have been -- available for sale. And the third is a mixture of word processing and e-mail programmes that facilitate communication between agents and prospective sellers/buyers. In addition, the several search engines (e.g. Google) allow people to search for real estate information -- which means that Internet access is frequently involved in connecting people who are interested in selling and buying property.
What are 3 elements of computer system and their examples?
Basic Computer Elements: In generally used computers one can find that there are four basic computer elements following are the elements.
(1) ALU (Arithmetic Logic Unit): The ALU is the digital circuit that is able to perform different types of functions, such as Addition, Subtraction, and Multiplication etc.
(2) Control Unit: The control unit is the part of CPU (central processing unit) or other devices that performs the duty to direct its operations, the control unit is just like a finite state machine that has some finite states and the transaction from one state to the other state is called action.
(3) Memory: The memory is another very important element of the computer without memory the computer can't operate in today's modern age it is called the RAM (Random Access Memory) when ever we give some instruction to the computer it passes through RAM to the Processor and the processor processes it and send it back. The main reason behind memory is that it is faster in communication with the processor then the other memory devices such as hard disk etc.
(4) Input/output devices: The input and output devices is another important element for example the processor is the input device and it gives its output to the monitor etc for output.
There is another very important point the basic elements are considered as CPU (central Processing Unit), I/O devices, and Memory actually the CPU is the composition of different other elements such as ALU, Control Unit, Registers which is another type of memory.
What are the four main computers?
There are six different types of computers in the world such as the microprocessor. Another type of computer is the personal computers
What are computers and name some types of computers?
Computers are device by which we can play games, watch movie, chat, work, etc. It is very useful to human beings as we made It for our own purpose.
Some types of computers are :-
1) Micro computers
2) Mini computers
3) Super Computers
4) Laptop (not exactly computer but is seems like and works like )
Thanks You for your Question!
How has technology changed the world?
It has changed our world in many ways:
- computers
- phones
- medicine
- MOST IMPORTANTLY....ALL MEDICAL TOOLS, TREATMENTS, AND PROCEDURES!
I can't tell you how thankful our world should be because of technology and how it has shaped the medical world! :)
- Vaccines
- online chat-rooms
- ALL OF SCIENCE! AND ALL OF SCIENTIFIC TOOLS, AND LAB EXPERIMENTS!
- telephone calling
- TV
- HD
- AND ANYTHING ELSE THAT WAS NOT INVENTED IN THE FIFTIES! LOL!
Use of vacuum tube in first generation of computer?
It's purpose was to act like an amplifier and a switch. Without any moving parts, vacuum tubes could take very weak signals and make the signal stronger (amplify it). Vacuum tubes could also stop and start the flow of electricity instantly (switch). These two properties made the ENIAC computer possible.
What is a second generation computer?
Most systems of classifying computers define the second generation computers to be those built with discrete transistors (no vacuum tubes, no integrated circuits). This spans roughly ~1958 to ~1964.
How much did he first desktop computer cost?
The first computers had no fixed selling price. They were usually built on cost plus fixed fee contracts, because the people making them could not guess at final cost to build them.
For example the ENIAC was estimated at $50,000 when the Army signed the cost plus contract. The Army eventually payed a bit more than $500,000.
The UNIVAC I original fixed price contracts were for $250,000 but when the machine went into production its actual price was $2,500,000. Remington Rand lost lots of money on the first two UNIVAC's sold as the company had to pay the difference between cost to build and what the customer payed!
What is the difference of computer before and now?
Computers before had the same knowledge of present day calculators (or less) and were often the size of a large room. Now computers are smaller, easier to use, hold more memory, can do more advanced and complex computations, much much faster and so on!
The 1957 printing of Webster's New World Dictionary defines:
computer: see calculator
calculator:
1. a person who calculates.
2. a book of tables for calculating.
3. a calculating machine.
Also, computers are smarter and faster these days. A few years ago it took a few days to download something but now it takes a few minutes. Also, if your downloading something you can still do other tasks on the computer because of more RAM. And computers are much more secure now too.
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For me most computers have better graphics and design because of modern technology. Computers change year by year.
What is e commerce and how to use e commerce?
e-commerce is the action of trading on line - it is either a person buy something from a company web site or more high level business to business transactions.
eBay is an example of consumer to consumer trading platform.
Which computer is largest and storage capacity super computer or main frame?
Supercomputers are by definition roughly 10 times the performance of the fastest mainframe, but sometimes are actually physically smaller to help reduce signal propagation times thereby increasing speed.
Impact of Information technology on Indian economy?
Type your aThere has been a lot of talk about how consumer technology has evolved and its effect on our lifestyle etc. Here are few examples of how technological revolutions have impacted (or will impact) on the way we do business.
Cloud Computing:
Heard of cloud computing? I bet many of you will be actually sick of hearing it now! I am pretty sure going on cloud helps a lot of small and big companies not only in terms of reduced infrastructural requirements (which in turn means cost savings!) but also the way companies redesign their strategies around it.
Amazon, for example, is already big on providing cloud computing through its EC2 web services. Microsoft has also jumped on the bandwagon with its Online Office services. So there are a lot of interesting things happening which would change the way business was done traditionally.
Watch out for: Google's Chrome OS aka "GDrive" aka cloud operating system
Online Social Involvement:
All right this one is a cliché right? Yes maybe but I want to emphasize more on how people are spending money buying all these virtual stuff. Business adapting models around social media are becoming immensely popular.
These firms take advantage of a huge social media population and engage these consumers into adopting almost a different life on cloud. They typically build products to be sold online or sometimes a platform to sustain their business. Second life is a good example of how businesses are utilizing this latest trend.
Watch out for: IBM's CityOne
Voice over Internet:
Another sector that is being revolutionizing the businesses. For example, there is a lot of stress these days on virtual conferencing, live-meetings etc. and all this is to reduce costs and efforts in organizing in-personal meetings.
Cisco and other companies are big on this and have been coming up with really innovative ideas to reduce the overhead of making phone calls. SMEs benefit from the cost benefit too. Skype, Yahoo and others have already changed the way we made phone calls traditionally but I guess there is no limit to innovation or it there?
Watch out for: Google Voice
Mobile Payments:
A much needed and less evolved technology trend especially in Indian perspective. We desperately need business offering innovative mobile payments for our rural and a portion of urban population as well. Mobile payment also solves the problem of online fraud and credit card issues many of us face.
With Internet penetration not growing at expected pace, small and medium businesses will improve their value chain by integrating mobile payment systems in years to come. While mCheck has already initiated the process yet the problem is dependency on credit cards, bank accounts etc. What we really need is a mobile-Western-Union sort of service, where my rural client transfers the payment at a local general store and it gets mobile-transferred (either in form of airtime or cash at counters etc) to me quickly. Lots of NGOs and Non-Profit organization are exploring this area but we need one of the big telcos to step in.nswer here...
What was the name of the person that invented the first computer?
Charles Babbage (26 December
1791 - 18 October 1871)
Charles Babbage was an English
mathematician, philosopher,
mechanical engineer and (proto-)
computer scientist who
originated the idea of a
programmable computer. Parts
of his uncompleted mechanisms
are on display in the London
Science Museum. Working from
Babbage's original plans, a
computer was ultimately built
and functioned perfectly. Built to
tolerances achievable in the 19th
century, the finished engine
indicated that Babbage's
machine would have worked.
Babbage had even designed a
printer; it featured astonishing
complexity for a 19th century
device.
What were first generations computers like?
first generation computers were not fast and were less reliable.
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How did you operate the first computer?
By first, do you mean... First? The Medical Institute Learning Facility, Russia (MILF) was founded in 1632 by a wise man, known as Wilt "The Stilt, Illadelph, The Illy One" Chamberlan, named by the man himself, Bobbito Garcia AKA DJ Cucumber Slice, MC corn on the cob.
Back in 1632, the very first computer was designed by Bill Gates and Harry Potter.
With their combined technological wisdom, they formed the greatest invention known to man. The Computer. Commonly known as The Computer.
This device is know to have cured many unknown diseases, such as; Unknown Disease.25, Unknown Disease.1, Unknown Disease.953 and The Common Sadistic Arabian Flu.
The main function of this device was the "On" button.
what are the different classifications of computers according to their purpose?
Classification of computer according to speed?
When classified according to capacity, the computers can be classified into five groups. The five groups includes the super computers, the large computers, the medium sized computers, the mini computers and the micro computers.
