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Computers
This category includes questions and answers about computers and everything related to computers.
48,002 Questions
Ooh..., tough one. You could say it is the user. But that is lame. You could also say processor, since no computer could work without one. My first computer worked with a 5¼" floppy drive, no hard drive, 256 kb of RAM and a 4.7 Mhz processor. No mouse either. The graphics were CGA and EGA.
What is the disadvantages of a stock control system?
There are almost as many disadvantages of a stock control system as there are advantages. The disadvantages of a stock control system are: expense, staff training is needed, incoming stock updates can be forgotten, equipment breakdown, and breakages and theft must be accounted for to keep stock levels accurate.
In my opinion; A computer virus acts like a program, but when executed, it does malicious tasks automatically in your computer without you knowing. Since it works inside a computer, it's like it breathes on electricity, and thinks with the Artificial Intelligence given by its creator. Without electricity, the virus doesn't breathe its source of life for it to do its purpose. So I could say it is "virtually" alive or something like that.
What are the examples of mini computer?
A computer that is designed small and used to fit and save desk space when space is needed. Some get really small and can attach to the back of an lcd monitor and run off batteries. They have smaller components, smaller cases, smaller power supplies, smaller power usage as well.
What is basic computer programming?
It could be one of two things:
- Programming using the programming language BASIC
- Simple programs, like the ones that you learn to make when you first start programming, like a hello program.
What are computer spreadsheet programs?
There are several spreadsheet programs available. The most well known is probably Microsoft Office Excel. However, Open Office has a spreadsheet which has open source code and is available free under a GNU license from Sun Microsystems (see link below).
A spreadsheet is a program that allows the user to enter data in a tabular format (with columns and rows) and then perform various calculations and other manipulations on that data. For example, a user might enter a column of sales figures and instruct the software to total that column. Later, if the user wishes to change a value already entered, remove a value or add a new value, the spreadsheet will recalculate automatically without requiring the user to re-enter all of the values.
Spreadsheets can be used for anything from basic accounting to complex data analysis including graphs, statistics, and regressions. Spreadsheets can also sort data, for example alphabetizing a list of inventory.
Other contributors have said:- An electronic spread sheet is when we work in the Ms- Excel Then they have made the Books the combination of the Books is called an electronic Spread sheet. Because it runs on the computer so its called electronic spreadsheet programs.
Write an algorithm find out the sum of first n odd numbers?
Algorithm: sum_even
Input: an integer, n, such that n>0
Output: the sum of all even integers within the open range (1:n)
sum := 0
val := 2
while (val < n) do
{
sum := sum + val
val := val + 2
}
return sum
Note that you explicitly specified between 1 and n, which literally means both 1 and n should be excluded from the sum. 1 would be excluded anyway since it is not an even number, however if we wish to include n, then use the following algorithm instead:
Algorithm: sum_even
Input: an integer, n, such that n>0
Output: the sum of all even integers within the half-open range (1:n]
sum := 0
val := 2
while (val <= n) do
{
sum := sum + val
val := val + 2
}
return sum
Explain in detail the basic organization of computer with neat diagram?
The basic organisation of computer includes, 1.Control Unit
2.Central Processing Unit
a)Control Unit
b)Arithmetic and Logical Unit
c)Memory Unit
*Primary Storage
*Secondary Storage
3.Output Unit
Function Pointers are basically used when we want to select a function which is to be used dynamically at run time.
AnswerFunction pointers are the only way for "Interept programming". In UNIX all the Interepts are called using function pointers. This is mainly used in system programming. Answerits nothing but a pointer to function. which is similar to ptr to a variable, if we are saying ptr to a variable then it will hold address of the variable like that fn. ptr will have the address of the function..one of the major application of the function pointer is call back function.. i.e callback.
AnswerPointers to functions/methods/subroutines aka 'Delegates' are frequently used in .NET programming especially in EventHandling, MemberInvoking<><><>
A function pointer is used to pass a function as an argument to another function, or to store a function as a data item, for example a list of functions can be implemented as an array of pointers to functions. Function pointers are used to store interrupt handlers in tables.
What is the difference between analog and digital computers device?
On The Lighter Side
An analog computer is the computer which is used not for home porpoises. Digital is. An analog computer is used to measure temprature and all. Digital isn't.etc.
How is image resolution expressed?
Image resolution is usually expressed by giving the dimensions of the image in pixels. The size of an image that is 640 pixels wide and 480 pixels tall would be expressed as 640x480. 640x480 is read as "six forty by four eighty".
Do real time processingsystem process data instantly?
The advantages are; if you have a processor that can handle all the stress and load of using the processes as they are called up in real time then it works faster.
Disadvantages; puts a helluva lot of stress on your processor and if you have too many programs running without the necessary speed then your processor will overheat and might start to melt.
Real-time typed conversation on a computer?
Real time typed conversation on a computer is known as a chat.
A program to find the sum of n numbers in visual basic?
//Script by aakash30jan
<script type="text/vbscript">
For count = 1 to 10
sum=sum+count
document.write("<br />" & sum)
Next
</script>
What is the key difference between old computers and the present day computers?
- vacuum tubes, large sized, high power dissipation, high voltages
- transistors, medium sized, medium power dissipation, low voltages
- integrated circuits, small size, medium power dissipation, low voltages
- microprocessors, very small size, low power dissipation, low voltages
What is an HTML attribute used for?
In HTML, atttribute provides additional information about HTML element. Attribute of HTML element is written in start tag and usually come in name/value pair e.g. name="value". Attribute names and values are case sensative and it is recommented by W3C to write them in lower case. Some attributes which can be used on any HTML element are: classs, id, style, title etc.
Attribute values should always be quoted in single or double quotes. The best practice is to use double quotes around values.
What qualifications does a computer programmer have to have?
A degree in network program administration
SOFTWARE PROGRAMMERA degree in computer or information science, mathematics, engineering, or the physical sciences.What kind of data structure is required to implement the round-robin scheduling?
cicular queue :D
if you want to implement the round robin you need the data structure of circular queue so that when we give the time quantum for the processes then if that process is complete in that time period then its ok but if not then we have to put that process in the queue so that all other processes are also get the time to execute i.e. to remove starvation
A string of eight 0s and 1s is called?
Eight binary digits are called a byte.
Four binary digits are a nibble.
IBM Mathematical Formula Translating System
(if I understood your question)
