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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
The Registry holds Windows system information. It can change each time you add or remove software, change your theme, edit the registry, etc. You can edit your registry by opening Command Prompt and typing Regedit.exe: however, do this only if you know what you're doing. Editing and modifying the registry is dangerous and could render your Windows OS unusable, forcing you to restore or reinstall.
What is the reason for having a cache memory?
Cache simply is for speeding up the processes already completed, since it is faster than ram, and easier to access. it basically is just for speeding up applications you use often. cache is volatile meaning that it is erased when you turn off your computer.
What is the difference between network administration and system administration?
In the simplest of terms they are the same, it is just the target supported is different. Network administration supports the hardware and software that makes up the network, switches and routers for example. System administration would involve the support of the various servers that would be connected to the network, database, email, and web servers are good examples. http://en.wikipedia.org/wiki/System_administrator
http://en.wikipedia.org/wiki/Network_administrator
What are the expansion slots on a motherboard used for?
Expansion features, of course (that is why they are called expansion slots).
Boards (sometimes called daughterboards) are plugged into these slots to add the needed hardware for features not originally included in the computer. Additional driver software is usually required to support these boards (some OSs can automatically identify the new boards and load the driver software automatically, others require that the user do this manually).
What are some RISC and CISC examples?
- CISC: Manchester Baby, EDVAC, EDSAC, BINAC, UNIVAC I, IBM 704, IBM 650, IBM 305, IBM AN/FSQ-7, IBM 7090, IBM 1620, IBM 1401, DEC PDP-1, Apollo Guidance Computer, IBM System/360, UNIVAC 1107, DEC PDP-8, DECSYSTEM-10, Intel 4004, Intel 8008, Intel 8080, Zilog Z-80, Zilog Z-8000, DEC PDP-11, Data General Nova, Motorola 68000, Intel Pentium, DEC VAX
- RISC: CDC 6600, CDC 7600, Cray-1, Cray-2, Cray-3, Sparc, IBM RISC, IBM POWER, Intel i960, MIPS, Motorola 88000, DEC Alpha, PowerPC, ARM
Note: CISC was very important when memory was small and very expensive as it allowed programs to be reduced in size. It was also very important when more programming was done with assembly languages than with high order languages as it made for instructions that were easy for programmers to understand. But with declining memory costs and almost all programming being done with compilers, research showed that that most of the instructions in a CISC instruction set were redundant and not needed. Eliminating them and reducing the instruction set to just a core of essential instructions allowed for both a significant reduction in the hardware needed to build a computer and the development of simpler more powerful compilers. With less hardware in the computer optimizing its design for higher speeds became much easier. Thus the concept of RISC was formed.
The CDC machines and the Cray-1 listed above were designed before the concept of RISC formally existed, but clearly meet its definition in retrospect. Designed by Seymour Cray, his primary goal was to produce the fastest computer possible at the time, which required elimination of all unnecessary hardware that might limit the speed of the machine. He even eliminated all data synchronization latches/registers, instead using hand tuned delay lines made of loose hanging loops of twisted pair to make sure signals arrived where needed at exactly the right time.
Jpg is also known as JPEG(Joint Photographic Experts Group) .It is a Raster/bitmapped image file format.the exact meaning is that the Jpg image is made up of pixels & each pixel cosists of RGB colors (Red Green Blue).It is used for Comppresion of image file.
What is the difference between a computer engineer and a computer scientist?
Computer science refers to the processes used to create usable computer programs and applications together with all theory behind those processes. Information technology on the other hand refers to the application of computer programs to solve business processes. It is the application of technology in business. Information technology is very vast in terms of scale because it is applied virtually to any type of process that may require automation, from business, scientific research to the music industry, telecoms and banking.
What are the similarities between Windows Mac and Linux operating systems?
Windows, Mac OS and Linux are all operating systems. All three can be used in computer desktops, laptops, netbooks, notebooks, smartphones, tablets, etc. You can use any of the three to surf the web, check your email, video chat, as word processors, video editors, for music listening, recording and production, graphics design, and the list goes on and on. However, the software that you use to accomplish the tasks I mentioned might be different depending on which operating system you're using. For example, to go on the internet you a need a web browser: Windows PCs come standard with Internet Explorer, Mac PCs come with Safari, and Linux usually comes with Mozilla Firefox, Google Chrome, or an offshoot of the two (Iceweasel, Chromium, etc).
How many kilobytes in a 300 kilobits?
1MB = 1024KB. So, 30*1024 = 30,720. Therefore, there are 30,720KB in 30MB.
What is the difference between remote computer and local computer?
A local computer is the machine you are currently logged into, a remote computer is a computer you are accessing from your local computer.
So, if I connect to my home computer from work, my home computer is the remote computer, and my work computer is the local.
Conversely, if I connect to my work computer from home, my work computer is the remote computer, and my home computer is the local.
What does GHz stand for in computers?
A gigahertz (GHz) is one billion cycles per second. High-speed computers have internal clocks rated in GHz.
Importance of computer in todays world?
The importance of computers in today's world is to simplify tasks and perform complex calculations. They can fit in a wristwatch and are capable of performing billions of operations per second.
What is a greenfield environment?
Greenfield is a term used for endeavors that does not have any constraints imposed by prior work. The term is derived from construction industry where a new structure is built on a farm land - "green field" - without having the need to demolish/move any existing structures. It is same way in IT too that refers to a fresh implementation and is not bound by existing system constraints.
Cheers
S. Aakassh
What are the technical details about a hardware component?
Very basically your system is based on a CPU (Central Processing Unit) - This controls the other components of the Mother Board . The Mother board holds the DDR DIMM,s (Double Data Rate - Dual Inline Memory Modules / Memory sticks) and the Ethernet controller unit (for Internet) and a fan keeps this cool (30C-55C). There are also additional video cards / etc etc.etc. There are many more components that will be specific to each model of computer, but the above are the basics.
When do you use the Bcc field in an email?
http://en.wikipedia.org/wiki/Blind_Carbon_Copy
Use it when you're sending an email to more then one person and you don't want the other people too see everyone else that you're sending it too. E.g.
To: Bob
CC (carbon copy):Joy
BCC: Fred
BCC: Kim
Bob can see that the email was sent to Joy, but no one else.
Joy can see that the email was sent to Bob, but no one else.
Fred can see that the email was sent to Bob and Joy but doesn't know that it was sent to Kim.
Kim can see that the email was sent to Bob and Joy but doesn't know that it was sent to Fred. BCC stands for Blind Carbon Copy. Any email address that you put in this section will be invisible to anyone else who receives the email. BCC is very helpful if you want to send an email to a large list of people and you don't want them all to see who else is receiving the email. Another use: I want friend A to see what I am sending to friend B but I don't want friend B to know that friend A can see the message. Therefore I would put friend B in the "To:" section and friend A in the "BCC:"section.
Are there 1024 Gigabytes in one terabyte?
If you're asking about the next prefix, it's peta. Now the actual conversion between terabytes and petabytes depends on what system you're using: The SI standard says that 1024 terabytes would be equal to 1.024 petabytes. The generally used (though technically incorrect) values in computing says that 1024 terabytes would be equal to 1.000 petabytes.
What is the significance of file formats and file extension?
File formats and extensions are more or less the same thing. Their importance lies in identifying how to use the file. That is, having a document with the extension .doc or .docx tells the computer that the file needs to be opened using a word processing application. If the file extension (the .XXX) is .jpg for instance, the computer knows that it is an image file and that it should open it with an image viewer.
I hope this clears things up for you.
What does FAQ stand for in computer terminology?
Actually, it works the other way around, whereas "FAQ" IS the Acronym for "Frequent Asked Questions".
windows, mac os, unix, linux..generally all of the present versions of these OC's are multitasking ones..
What are the advantage and disadvantage of asynchronous and synchronous?
The term "synchronization", when discussing Java programming, refers to the mechanism which allows only one thread to access a block of code at a time. The advantage with synchronization is that it prevents data corruption but it also increases the total execution time of a program.
