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Computer Terminology
Questions and answers about different terms related to computers, as well as computer language that is popularly used today.
11,612 Questions
A hypertext protocol is a protocol relating to hypertext.
The most well-known hypertext-related protocol would be the Hypertext Transfer Protocol, which is used to transfer hypertext from one machine to another.
The accuracy of a computer's output depends on the accuracy of the input?
Quite true. This principle was immortalized by the phrase "garbage in, garbage out".
What type of signal does the computer use?
I will attempt to explain how a computer interrupts what we ask of it, & what we as as users should all understand in the simplest of terms I can :) At the core of a computer everything is processed from and into "On & Off"... (i.e. High or Low, One or Zero, +5 volts or 0 volts or Light and Dark as in fiber optics.)
The computer is hardware which interprets ON and OFF. A series or sequence of on and off force the system into a conversion too a resulting sequence of On and Off.
It is all Math - basic math based in a numeral system called Binary (a number system based using a 1 or 0 which is used to describe for us all character's and all numbers.
For the computer to display a numeral digit or an alphabetical character, a series of 7 - 1's & 0 are needed. This is called a "byte".
Each 1 or 0 in the byte is called a "bit". 8 bits make a byte! Seven bits for the character, and 1 bit for parity. (parity is a way for the system to verify that the resulting byte as correct.)
One Byte = one character 1
One Kilo byte = one Thousand characters 1,000
One Mega byte = one Million characters 1.000.000
One Giga byte = one Billion characters 1,000,000,000
One Tera byte = one Trillion characters 1,000,000,000,000
A computer processes this way while we greatly build the compatibilities to a point technology is at today, all off this basic binary platform.
And basically that is all a computer really does, only it does this very fast and it does this virtually without error. Most all system errors are the result of software in development (i.e. bugs) & compatibility issues, hardware failure, or user error.
"The computer only does as it is instructed, nothing more & nothing less." It's merely a box that churns out binary results from binary sums which it is tasked with too process.
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A .exe file is an executable file, which means that it will start all by itself. For example, when you insert a CD-ROM or DVD-ROM into the drive on your computer, the drive spins, and the computer looks for a file called "setup.exe". When it finds it, it starts the program automatically and installs the new software or game.
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An exe actually will not always self execute. There are many executable files (.exe) which will only run when a user tries to open them. They will only automatically start when something else tells the system to do so. This can be an autorun.inf file or a CD/DVD, or a startup entry in the registy, scheduled tasks, or other startup locations.
What is a small version of a larger graphic?
A small version of a large graphic on a web page is often called a thumbnail. Many designers use them to put more on a single page and make it easier to browse.
How many MB are in 20 kilobyte?
If you mean 20Mbps to kbps,
Note: Mbps is NOT the same as MBps... Mbits / MBytes ... 8 bits = 1 Byte
Mb = Mbits
MB = MBytes
20Mbps = 2.5MBps (don't get confused)
1Mb = 1024 Kb
20Mb = 20480 Kb
20480Kb = 5120KB
20480Kbps = 5120KBps
So... 20Mbps = 5120KBps
or... 20Mbps = 2.5MBps
http://www.d-techzone.com
5 gb
The standard answer you receive from your carriers are:
About - 1.7 million emails (without attachments)
About - 10,000 photos
About - 1,200 songs =about 5gb
What is the 3 letter extension for a microsoft word file?
".doc" in versions of Microsoft Word before 2007
".docx" in Microsoft Word 2007 and later.
.doc
MS word
Is ActiveX is best defined as Malicious code?
ActiveX is a small program that can be downloaded by a web site to your computer, sometime without your knowledge. Microsoft invented ActiveX controls so that web sites could use some nifty multimedia features, however ActiveX controls allow web pages to execute program code on your machine - there's no way for you to know ahead of time whether that code is harmless or a malicious attack on your computer. To answer the question it is no but malicious software writters will use ActiveX because it can get into windows system easier.
How many mega bytes are in 5 gigabytes?
There are 5120 MB in 5 GB. Refer to below : 1 bit = the value of 0 or 1 8 bits = 1 byte 1024 bytes = 1 kilobyte 1024 kilobytes = 1 megabyte 1024 megabytes = 1 gigabyte 1024 gigabytes = 1 terabyte 1024 terabytes = 1 petabyte So 1024 MB = 1 GB so i did 1024 * 5 and got 5150 MB in 5 GB.
What is major difference between window 98 and window xp?
The major difference to date is that Windows 98 is no longer supported by Microsoft. Another notable difference is that Windows XP provides greater stability as a whole.
A vast magority of programs available are only usable on Windows XP/Vista machines, and like Microsoft, no longer supported for the older operating system.
TCP and UDP reside at which layer of the OSI model?
UDP or User Datagram Protocol works on the Transport Layer (layer 4) in the OSI model.
What do gif and JPEG stand for?
.bmp stands for Bit Map Picture. This is the standard bit-mapped graphics format used in the Windows environment. By convention, graphics files in the BMP format end with a.BMP extension. .gif stands for Graphical Interchange Format. This is pronounced jiff or giff (hard g). It is bit-mapped graphics file format used extensively on the World Wide Web. GIF supports color and various resolutions. It also includes data compression, but because it is limited to 256 colors, it is more effective for scanned images such as illustrations rather than color photos.
Why is one KB not exactly 1000 bytes?
A kilobyte is actually 1000 bytes. "kilo-" is an SI prefix meaning "1000".
- 1 km = 1000 meters
- 1 kg = 1000 grams
- 1 kB = 1000 bytes
When dealing with computer memory, the addresses for each memory location are typically binary numbers, which means the total number of addresses is a power of 2. It makes the most sense to use all of these positions, so the total capacity of a memory will typically be a power of two.
Since 210 is equal to 1,024, it is often approximated as "1 kilobyte" in speech, but this is just a shorthand, not a real definition.
RAM manufacturers treat this as a literal meaning instead of an approximation, though, and extend this to higher powers, which conflicts with the way units are used elsewhere. So a "1 GB" RAM IC has 230 = 1,073,741,824 bytes instead of 1,000,000,000 bytes, a 7% error. On the other hand, a 1 GB Flash memory actually doeshave around 1,000,000,000 bytes, as you would expect.
"kB" or "KB" can mean either 1024 bytes or 1000 bytes, depending on who you ask. Both meanings have been in use since the early days of computing, confusing users ever since.
kilo- means 1000, and has for centuries, so where did 1024 come from? The answer is binary addressing.
Your basic transistor, the foundation for all things computer, has 2 states (on/off), which is known as binary. So modern computers of all types use the binary numbering system (0/1 = off/on).
Memory addresses in computers are a number of bits wide. For instance, the old 6502 microprocessor had memory addresses 16 bits 'wide'.
With 10 bits, for instance, a computer can address 210 memory locations, which is 1024. With 16 bits, a computer can address 216 memory locations. So the number of memory locations is always a power of two. It wouldn't make much sense to make memory chips that don't use all of the addressable locations, so all memory is in powers of two. (This doesn't apply to other computer components, however. Hard drives, disk drives, DVDs, and other media, clock speeds and data rates and networking speeds are all measured in powers of 10.)
But 1024 is 210 (2 to the 10th power), conveniently close to 103 (1000). In computers, base-2 shows up over and over again. It's easier to approximate and say "1k" instead of 1024. 1 kilo is normally 1000, as per the metric system's prefixes.
In this case, the next higher size of memory chips was often 2x or 4x the previous size. This pulled folks away from the normal base-10 thinking toward base-2 thinking ... and we ended up with something that sounds like it is based on powers of 10, but is really based on powers of 2.
Officially, 1000 is the only valid meaning, and "k" was used by engineers for 1024 just as an approximation. (2048 bytes isequal to 2.0 kB, after all.) Over time, this approximation became used by marketing types as if it was actually defined as1024, rather than just being used as an approximation.
In 1968, for instance, Donald Morrison talked about how it was confusing to tell laymen that doubling a 32K memory produced a 65K memory. He proposed to end the confusion by using the Greek letter κ (kappa) to mean 1024, but this never stuck. Instead, people started using capital K to mean 1024, which further increased confusion instead of helping.
Nowadays however, there is a new prefix to be used for the non-standard meaning:
- 1 kibibyte (KiB) is 1024 bytes
- 1 kilobyte (kB) is 1000 bytes
So too for the old megabyte which was 220 bytes:
- 1 mebibyte (MiB) is 1,048,576 bytes
- 1 megabyte (MB) is 1,000,000 bytes.
Higher units like terabyte have always been used with the 1000x meaning except in rare cases.
A Denial of Service attack (DoS) is an attack that attempts to block access to a certain resource. This can be done several different ways. What used to be the most popular was to spoof a ping from a target to the network broadcast, having every machine on that network reply with an echo response. Another typically used DoS is to send packets with the syn flag to a server, initiating a session, but not sending a packet with the ack flag, thereby leaving the server in an unresponsive state as it waits for responses.
What is 1000 megabytes called?
1,000 Megabytes is approximately 1 Gigabyte.
The actual real number is 1,024 Mb = 1 Gb. But 1000 is close enough.
What is the purpose of a network server?
Network Server is a computer , that manages the Network resources.
Network Server is not a Hardware, its a software's . server refer to the application or service that managing network resources rather than the entire computers.
For example:- print server : Manages one or more printers.
Web Server: Hosts and Manage one or more Web Sites
File server: Provides central location to store and access files
What is a TCP session termination?
TCP stands for Transmission Control Protocol. It is responsible for sending data and ensuring it gets to its locaton. In order to do this TCP checks to make sure a line is open to send data, if it is then it sends the data, then waits for a message to ensure the data made it to its location. Hence the term TCP session is open when the data is sent and then the TCP session is closed once the data is confirmed that it arrived safely. This is a simplified explanation, pick up any book on Networking and it will explain it to you in detail. TCP/IP is the internet, it is the only protocol used on the Internet because it is so reliable.
one ghz represent 1 billion cycle per second.....the speed of microprocessor called clock speed ...each computer instruction require a fixed number of cycles...so clock speed determine how many instruction per second the microprocessor can execute....
