Computers

Characteristics of Computer

Speed

A computer works with much higher speed and accuracy compared to humans while performing mathematical calculations. Computers can process millions (1,000,000) of instructions per second. The time taken by computers for their operations is microseconds and nanoseconds.

Accuracy

Computers perform calculations with 100% accuracy. Errors may occur due to data inconsistency or inaccuracy.

Diligence

A computer can perform millions of tasks or calculations with the same consistency and accuracy. It doesn’t feel any fatigue or lack of concentration. Its memory also makes it superior to that of human beings.

Versatility

Versatility refers to the capability of a computer to perform different kinds of works with same accuracy and efficiency.

Reliability

A computer is reliable as it gives consistent result for similar set of data i.e., if we give same set of input any number of times, we will get the same result.

Automation

Computer performs all the tasks automatically i.e. it performs tasks without manual intervention.

Memory

A computer has built-in memory called primary memory where it stores data. Secondary storage are removable devices such as CDs, pen drives, etc., which are also used to store data.

Humans are the only mammals to use computers. However, many primates and some other animals are capable of using tools. For example, chimpanzees know how to crack open nuts with stones.

Computers make work easier by doing the difficult and time consuming tasks very fast.

He invented the computer at the age of 30.

Ericsson was a Swedish company. Two members, Jaap Haartsen and Sven Mattisson began work on a wireless form of communication in 1994. It wasn't until 1999 that Bluetooth was actually released in Bluetooth 1.0 however the following gives credit to Hedy Lamarr although her patent expired before the navy opened her documentation rearding the technology.

Oh, I see there is no further following referencing developmental interest... only following in due credit. *Hedy Lamarr pioneered multiple solutions; And the singular technology of 'Bluetooth' specifications shouldńt be lost in the amassed doctrination sealed by the U.S.Navy.

* note of interest: ideas in advancements were often cooperative combining the most efficient applications with her 2nd husband Hollywood writeŕs help.

Ref.: Nov.2014-Nat´l G.; The History Ch. ´Technological Progress In Comunicationś series

In computer terms a nibble = 4 bits = 1/2 byte.

You can further define the data segment as:

Crumb = 2 bits

Nibble = 4 bits

Byte = 8 bits

Word = 16 bits

Double Word=32 bits

Jury still out on 64 bits and Sentence

In keeping with the spelling of "byte", the lick and nibble are sometimes spelled "lyck" and "nybble"

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A nibble is half a byte, but believe it or not, a byte does not necessarily have to have eight bits. I don't know of any computer platform that uses anything but 8 bit bytes these days, but in computer science terms, a byte is generally the smallest addressable element, and the size needed to store a character. You also might be surprised to know that not all machines use ASCII (eight bit bytes) characters. IBM Mainframes still use EBCDIC under their traditional operating systems, and that stands for Extended Binary Coded Decimal Interchange code, which accounted for the lion's share of data until a few decades ago. It's an extended version of BCD, which uses 4 bits to express numbers, and there's no technical reason that a BCD based machine couldn't have 4 bit bytes.

It's unlikely that you will ever encounter a computer that doesn't use eight bit bytes, but you may encounter people who studied computer science back in the 1970s.

Back in the "old" days (the 1960's) when computer's didn't have operating systems or hign level programming languages, you always dealt with the byte. On some machines the byte was 8 bits and on others it was 8 bits + a parity bit for 9 bits. There was "even" parity and "odd parity", meaning you set the parity bit on if an even number of bits = 1 in the original 8 bits, or set it on for an odd number of bits = 1 in the original 8 bits. The "word" was originally set to be the size of a register (everything was done through a set of registers). The registers were used to assemble the current instruction that you wanted the computer to execute (what kind of action, like move a byte, add, subtract etc., plus the final length of your data, which determined how many cycles the computer had to go through to execute your instruction, plus where the data was coming from and going to). The "word" length was pegged to the length of the register, meaning that in treating the computer like a book, each register was a word. Since the first computers were totally byte oriented, a word was 8 bits. When 16-bit registers were implemented, they became 16 bits, then 32 bits and now 64 bits. There are some computers today that even have 128 bit words. So a "word" is the length of the registers in whatever computer you are using. It is also the biggest chunk of bits that the computer can process at one time.

The word "nibble" was invented to specify the high-order 4 bits in a byte or the low-order 4 bits in a byte (like eating a nibble from a cookie, instead of the whole cookie). Since a number can be specified in 4 bits, you only needed a "nibble" to store a number. So, if you had a field that was all numbers, you could write it out in "nibbles", using half the space you would have used if it was in bytes. Back in those days, space counted. The first "mainframe" computers had 4k of memory (no, that really is 4k), so you didn't have any space to waste if you were doing something like payroll or inventory management.

In some cases, individual bits within bytes are used to store flags (yes or no for a given attribute) and, in at least one IBM manual, these were referred to as tidbits. IBM was not known for a sense of humor, but the term never became a generally accepted abbreviation.

The average length of a computer keyboard ultimately depends on the type of keyboard it is. The uncommon small keyboards, packed with only numbers and an enter button (give or take a few buttons), are usually about 5 inches wide, and 7 inches high. The more common keyboards, consisting of the number pad to the side + the QWERTY-styled letter keys, are usually about one-and-a-half feet long. Those without the number pad are usually about one foot long.

Silicon is a metalloid which mean that it contains some properties of metals and nonmetals. Silicon does not conduct heat very well (property of a nonmetal), it is solid at room temp (property of most metals), and has a high melting point so when computers and other electronics are being heavily used they stay together.

The software is the series of instructions you issue to the hardware which are converted into electric pulses (from binary codes - strings of 0s and1s) to control the operations of the hardware; so, you see without the software the hardware cannot function.

Charles Taylor.

I am not referring to any statistics but i thinking it's the 13" to 17" notebook. They have replaced the desktop thanks to its wider range and better portability. The better ones also have hd screens and faster processors

Office furniture often goes on sale. But the best time of year to find the cheapest office furniture would be the beginning of a new calendar year. Most stores offer large discounts to make room for the new year's styles.

Judging by the amount of 'how do I bypass blocked web-sites' questions on here - It seems the majority would rather sit in school chatting to their friends - instead of paying attention to their lessons ! Still - McDonalds will ALWAYS need toilet cleaners !

The colossus computer is a very old computer. It was the first electronic, digital and programmable computer. It was made in 1943 and used to solve a problem proposed by mathematician Max Newman.

IBM manufactured the hardware. They also had their own operating system called IBM PC DOS, but licensed the very similar operating system provided by a little software company in Redmond, Washington founded by Bill Gates and Paul Allen known as Microsoft.

The "micro" referred to micro personal computers, which later just became known as PCs. "Micro" distinguished small, single user computers from multi user "mini" computers.

aaah!

that sexy alienware one.

its like...

$4,000 or something

The Abacus is a Japanese adding machine that consists of beads on wires strung between a wooden frame. The position of the beads indicated the number and you could do simple math with it. It is one of the oldest forms of computers.

I think recycling started at the begining of the transition from animal to human.

Human started to recycle the different earth ore for create production.

I

Steel

Iron

Coal

Oil

and others to gain wealth, power, predominance, and greed from a scientific origin.

"Piece of junk", "stupid machine", and other less polite things

You are probably looking for the word "Workstation", however, as opposed to "Server" which is a computer that many people can use at the same time and thus cannot be described as "personal".

What are the 4 main components of general purpose computer? A general purpose computer has four main sections: the arithmetic and logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These parts are interconnected by busses, often made of groups of wires.

It has made our world more revealing and interesting plus it caused students in school and University to be able to study and make a difference in their life with a job.If there was no computers today i wouldn't be writing this now .

If yes, then you are COOL*

*this includes NERDS!

bye.. =)