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Computer Science

Computer Science is the systematic study of algorithmic processes that describe and transform information. It includes the theoretical foundations of information and computation and the practical techniques of applying those foundations to computer systems. Among the many subfields of Computer Science are computer graphics, computer programming, computational complexity theory, and human-computer interaction. Questions about Computer Science, terms such as algorithms and proofs, and methodologies are encouraged in this category.

1,839 Questions

Can a Dell laptop track a specific PC?

It can only track it, if the other computer has a IP address and if the user of the Dell laptop knows it by anyway.

We have had an offer to affix an antenna to our condo building. Is this cable wireless bad for your health?

A wireless access point transmits electro-magnetic radiation. This is very similar to a cellphone. At the power levels expected, there is no evidence of health risk.

Discuss the objectives of an Input and output system?

This refers to targets aimed to be achieched in coming up with an input output system.They include;

1.Devive independence;a program should independed of the particular devece of a given type which it happens to be allocated.

2.Efficiency;perhaps the most crucial characteristic of the I/O sytstem is the speed disparity between it and the processor and the memory(

What is EDP?

It can mean many things. It can mean electronic data processing. In law enforcement, it could mean an emotionally disturbed person.

It could also be short for Energias de Portugal (formerly known as "Electricidade de Portugal"). It ranks among Europe's major electricity operators, and is one of Portugal's largest business groups.

What are the components of a computer?

if you mean the basic components inside a computer then here they are.

-Hard drive

-Motherboard

-Video processor (sometimes built into motherboard)

-CPU

-power supply

-one or more fans

- occasionally a heat sink which is a copper tube that draws away heat

-ram modual(s)

-LAN card

-wireless card

-in laptops a battery

-also in laptops a screen is usually attached to the chasis

These are the basic parts, im not including PCI(e) cards or cd-drives which are used for your connections such as usb

What is breakpoint in visual basic?

Break point is selecting the point from where program will run in debugging mode..

What is the broadcast address on IPv4 networks?

The broadcast address on IPv4 networks is the subnet address, padded on the right with ones. For example, if the subnet address is 192.168.x.y, with a subnet mask of 255.255.0.0, then the broadcast address is 192.168.255.255.

What type of software that has qualities of both hardware and software is?

Firmware is a collection of software that manages computer hardware resources and provides common services for computer programs.

What is parallism in computer science?

Parallelism is running processes simultaneously to maximize resources for faster processing.

Actually, that's incorrect. Parallelism in computer science is a property of an algorithm used to solve a problem. The Parallelism of an algorithm is its ability to be broken into discrete, independent parts which can be operated on separately, then recombined to obtain the answer the algorithm was supposed to provide. The greater the number of discrete parts that the algorithm can be broken into, the higher the Parallelism.

"Parallelism" can, however, be used to characterize the ability of a processor to work on different tasks at once, in a manner analogous to that of describing the ability of an algorithm to work on different portions of a problem simultaneously.

Which hexadecimal number has the greater value?

There are infinitely many numbers - whatever the base - and they never end.

What is an arp request packet for?

ARP stands for Address Resolution Protocol. This is IP's way of requesting a MAC address (or hardware address) from a host located at a certain IP address. In order for a host on a network to send a unicast packet across the network, it must know both the source and destination MAC addresses. ARP is used to obtain a MAC address similar to the way DNS is used to obtain an IP address from a domain name (www.anydomain.com).

What does ICTS stand for?

ICTS is Intermediate Capacity Transit System which is used in metro.It is also known as ART which is Advanced Rapid Transit.It was first manufactured by Bombardier Transportation.The original versions looked like small subway cars that typically ran in two or four car trains, but the latest versions are more adnanced two-car articulated designs that are not easily uncouplef. ART systems run on conventional metal rails and pull power from a third rail, but are powered by a linear induction motor. that provides traction by pulling on a "fourth rail" placed between the running rails. The design was originally developed in the 1970s by the UTDC, an Ontario,Canada Crown Corporation, a subway at the high-end. During development the system was known as the ICTS, for ''Intermediate Capacity Transit System''. Sales of the ICTS were made to metro lines in Vancouver, Toronto,Detroit.The largest ART system today is the Vancouver SkyTrain, which has seen several major expansions over its lifetime. It is the largest completely automatic metro system in the world, with just under 70 km of track.

What purpose does the modified bit serve in a demand paging system?

If you require a page to be swapped out and must allow for the possibility of it being swapped back in, you need to make sure that the page has the latest changes when it is again swapped in. If changes have been made to a page selected for swapping out, you must save the page to disk. If changes have NOT been made to a page selected for swapping out, you can immediately overwrite memory with a new page, without writing the old page back to disk. Disk access is sl.o..w... . You do not want to spend time writing to disk unless you really have to. The "modified" bit tells you if a change has been made to a page since it has been loaded into memory. As usual, a little bit of information can save you a lot of seek time.

What is the main function of device controller?

1.Stops and starts the activity of the peripheral device.

2.Generate error checking code.

3.Checks the error in the data recieved from the interface.

4.Abort that command which have errors.

5.Retry the command having an error.

6.Recieves the control signals from the interface unit.

7.Convert the format of the data .

8.Checks the status of the device.

How do you access a laptop missing the bootmanager file?

there's no way to start a computer without a bootmanager file, you have to reinstall your operating system.