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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
Difference between CD-Rom and CD-RW?
CD ROM and CDR -they are not writable if you have written data on it.Even if you have loaded 10kb or 700mb no matters it can't be rewrite anymore. CDrw- it can be written more than one time you can delete,edit,rename,edit attributes.
8,000,000,000 Bits = 1,000,000,000 Bytes = 1,000,000 Kilobytes = 1,000 Megabytes = 1 Gigabyte = 1/1000 of a Terrabyte
A byte looks like this 00100110 , each 1 or 0 is a bit.
Why was the TCP IP model developed?
The main theme of dividing the protocol into layers is to explain the rules of each layer specifically. This helps in putting various functions in separate modules and at the same time hiding the details of what they do and how they do it from other layers. This way we could improve the performance of one function or even change it all together, without having to change the whole protocol stack.
How much data can you put in 1 GB?
1 gigabyte equals 1000 megabytes, 1 megabyte equals 1000 kilobytes, and 1 kilobyte equals 1000 bytes.
To give you some idea of the storage potential, a byte is used to store a character of text. If a line is 50 characters then a 1000 bytes is 20 lines of text, if a page is 50 lines, then 2500 bytes is a page and so a megabyte is 400 pages of text or a long book. So you can store a library of 1000 long books without pictures on a GB storage unit.
Pictures require far more storage space. The amount needed depends on the size and resolution. You can put 1000 one MB picture on a 1 GB unit. Movies are frames of pictures and require vastly more storage and audio adds to the storage requirements.
Explain volatile and non volatile memory?
Volatile is RAM and non-volatile is like a hard drive.
More specifically, "Volatile" storage will erase its contents when power is removed, while "Non-volatile" storage will have permanently stored the data (until specifically told to erase it), even after power is removed.
What is the main computer that connects the other computers?
Strictly speaking, no computer 'controls' a network.
You will have different devices that do different jobs on a network.
Some examples :
You might have a DOMAIN CONTROLLER on a Microsoft network that authenticates users of the network (allows users to login and use the network resources).
You might have ROUTERS that 'control' what data gets in and out of a network based upon its configuration and which network data might get forwarded to as necessary.
You might have SWITCHES that 'control' what data gets sent to which computer based upon an IP address' host bits.
You might have a GATEWAY that 'controls' what data passes in and out of a company's internal network onto an external network (such as the Internet)
If you want a simple answer then it's probably that a SERVER 'controls' a client-server network.
What does the letters Cc stand for on the top of a email?
If you receive an email with Cc listed at the top of an email followed by your email address that means you have been sent a copy of an email which was originally sent to someone else.
If you receive an email with Cc listed at the top of an email follwed by someone elses email address that means a copy of the email which was sent to you was also sent to someone else, being the address beside Cc.
Why is static RAM a lot more expensive than dynamic RAM?
SRAM does not need to be refreshed; basically it does have data remance although still volatile. Since it does not need to be refreshed it is better than dynamic ram, which needs to be refreshed periodically.
Role of Database Technologies?
The main goal is to discuss the role of database technology and research in the new area of workflow management systems. There are several hundred workflow products in the market and the database community has so far had very little impact in this area. Yet, the problems faced by workflow systems have a lot in common with problems which have already been solved for databases. The paper aims to identify which database technology is relevant in the workflow area and research directions that are most likely to have a significant impact on the evolution of workflow systems. As the basis for discussion, this proposal outlines the current state of the art and points out possible areas in which database technology could be applied in workflow contexts. Thanks & Regards, Hajee nizam mohamed
What are the similarities and differences between synchronous and asynchronous transmission modes?
Asynchronous transmission refers to the case when the sending initiate transmission of byte at any instant of time. In asynchronous transmission only one byte is sent at a time and there is no time relation between consecutive bits. This transmission is also referred to as start-stop transmission.
This is achieved by providing two extra bits, a start bit at the beginning and a stop bit at the end of a byte. The start bit always "0" and is prefixed to each byte. The stop bit is always "1" and also suffixed to each byte usually 1,1.5 or 2 bits.
ANSWERED BY= SATISH KUMAR (AKASH VERMA) [LUCKNOW UNIVERSITY LUCKNOW]
Kilobyte (derived from the SI prefix "kilo-", meaning 1,000) is a unit of digital information storage equal to either 1,000 bytes (103) or 1,024 bytes (210), depending on context.
The prefix kilo- refers to the number 1000. This is the standard, official definition, used to measure hard drives, DVDs, networking hardware, etc. This is what Mac OS X and Linux use to measure disk and file sizes.
- 1 bit = binary digit
- 8 bits = 1 byte (B)
- 1000 bytes = 1 kilobyte (kB)
- 1000 kilobytes = 1 megabyte (MB)
- 1000 megabytes = 1 gigabyte (GB)
- 1000 gigabytes = 1 terabyte (TB)
- 1000 terabytes = 1 petabyte (PB)
- 1000 petabytes = 1 exabyte (EB)
- 1000 exabytes = 1 zettabyte (ZB)
- 1000 zettabytes = 1 yottabyte (YB)
Regarding computer memory, it is usually used as a unit of 2 to the power of 10, or 1024. This is officially incorrect usage, and should be written "KiB", for "kilobinary byte".
Pettabyte exabyte yottabyte petabyte terabyte bit byte kilobyte megabyte gigabyte please order?
bit
byte
kilobyte (kB) = 1,024 bytes
megabyte (MB) = 1,024 kB
gigabyte (GB) = 1,024 MB
terabyte (TB) = 1,024 GB
petabyte (not pettabyte) (PB) = 1,024 TB
exabyte (EB or XB) = 1,024 PB
zettabyte (ZB) = 1,024 XB
yottabyte (YB) = 1,024 ZB
I find the mis-ordering of XB YB and ZB disconcerting, but I wasn't consulted when they were established a few years ago. If you were counting, a yottabyte is about 1.2E24 bytes. That is almost exactly twice Avogadro's Number (6.024E23), which is the number of atoms in one mole of a substance. A mole of carbon weighs 12 grams. The current world data store (Feb 2011) of data held electronically is about 0.8 ZB.
What is mounted on the motherboard and is responsible for executing instructions to process data?
The Processor (CPU)
How do you change the spell check language through Mac Pages?
To change the language used for spelling checks in Pages:
If not already open open the Inspector pane.
Click on the Text section in the Inspector and then the More button.
From the drop down menu in the Language section select the required language.
What happens to the contents of ROM when the computer is switched off?
Nothing, the content of Read Only Memory remains on the computer. There is an internal battery which maintains the integrity of the chip's ability to retain information, along with the computer's clock.
tiff (tf) n.1. A fit of irritation.
2. A petty quarrel.
intr.v. tiffed, tiff·ing, tiffsTo quarrel. ---- TIFFS for Computer works, (Tagged Image File Format) A widely used bitmapped graphics file format developed by Aldus and Microsoft that handles monochrome, gray scale, 8-and 24-bit color. TIFF allows for customization, and several versions have been created, which does not guarantee compatibility between all programs.
TIFF files are compressed using several compression methods. LZW provides ratios of about 1.5:1 to 2:1. Ratios of 10:1 to 20:1 are possible for documents with lots of white space using ITU Group III and IV compression methods (fax). See JPEG.
It's spelled "nibble." Here is the definition as it is in terms of amount of information that a computer can send. You can have 1 bit (which is a 1 or a 0), 4 bits make a nibble, 8 bits make a byte, 1024 bytes make a kilobyte and so on.
Discuss the basic differences between external schema conceptual schema and internal schema?
The internal schema describes how the data will be physically stored and accessed, using the facilities provided by a particular DBMS. For example, the data might be organized so that all the insurance policies belonging to a given customer were stored close together, allowing them all to be retrieved into the computer's memory in a single operation. The conceptual schema (sometimes called the logical schema) describes the stored data in terms of the data model of the DBMS. In a relational DBMS, the conceptual schema describes all relations that are stored in the database The external schemasspecify views that enable different users of the data to see it in different ways. As a simple example, some users of policy data might not require details of the commission paid. By providing them with a view that excludes the Commission Rate column, we would not only shield them from unwanted (and perhaps unauthorized) information, but also insulate them from changes that might be made to the format of that data.
by:mohammed abu Lamdy
A website is how many kilobytes?
A website can have a huge range of sizes, depending on its content. It is not possible to say what size, without knowing what is in it.
