Computers

Silver has the best electrical conductivity of any metal. One assumes it's not as common as copper because it's much more expensive, in addition to being heavier and slightly less durable.

A computer is a person or a machine that performs computations. An accountant is a computer (human computer). A slide-rule is a computer (an analog computer). A smart phone is a computer (digital computer).

storage classes is important part of c language.WHENEVER we define any function in c program then we can call that in every definend class.

there are four types of storage class. these are...

1 AUTO OR AUTOMATIC STORAGE CLASS

2 REGISTER STORAGE CLASS

3 STATIC STORAGE CLASS

4 EXTERNALSTORAGE CLASS

1) The features of "AUTOMETIC" storage class are as under some conditions:

storage : storage will be in memory.

value : garbage value.

scope : scope is local to block to the variable.

life : till, controls remain within the block.

2) The featurs of "STATIC" storage class are as under some conditions:

storage : memory.

value : zero.

scope : local to block.

life : Till control remains within the block.

3) The featurs of "REGISTER" storage class are as under some conditions:

storage : register.

value : garbage value.

scope : local to the block.

life : value persists between variable.

4) The feature of "EXTERNAL" storage class are as under some conditions:

storage : memory.

value : zero.

scope : local to block.

life : till controls remains within the block.

An example of mnemonics would be closing a windows program using a combination of letter keys, instead of the alt + f4, or instead of using the "x" at the top of the screen etc.

Hold down the Alt key, F & X at the same time to close a windows screen using mnemonics. (no, these are not case sensitive)

In HTML 4.01, XHTML, and HTML 5, the proper way to add a border to an image is using a CSS declaration.

img { border: 2px solid blue; }

You could also put that as a style attribute, use a class or id CSS declaration, etc.

In versions of HTML prior to 4.01, you added a border using the border attribute.

<img src="test.jpg" border="2">

That code produces an image with a border 2 pixels wide. Note that CSS allows you to adjust the borders around an object separately, whereas this method does not allow that kind of distinction.

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Google Chrome Can. Just find a Most visited weblink, drag it into the apps page, and, TA-DA! YOU HAVE YOUR FIRST LINK!

HTML buttons have a property called "Disabled" which either disables (grays out) the button enables it (default). This property can be accessed through Javascript DOM by the following statement:

document.getElementById("<the button ID>").disabled = true | false;

Use "false" if you want to unlock a button, and "true" if you want to lock it

All ASCII character sets have exactly 128 characters, thus only 7-bits are required to represent each character as an integer in the range 0 to 127 (0x00 to 0x7F). If additional bits are available (most systems use at least an 8-bit byte), all the high-order bits must be zeroed.

ANSI is similar to ASCII but uses 8-bit encodings rather than 7-bit encodings. If bit-7 (the high-order bit of an 8-bit byte) is not set (0), the 8-bit encoding typically represents one of the 128 standard ASCII character codes (0-127). If set (1), it represents a character from the extended ASCII character set (128-255). To ensure correct interpretation of the encodings, most ANSI code pages are standardised to include the standard ASCII character set, however the extended character set depends upon which ANSI code page was active during encoding and the same code page must be used during decoding. ANSI typically caters for US/UK-English characters (using ASCII) along with foreign language support, mostly European (Spanish, German, French, Italian). Languages which require more characters than can be provided by ANSI alone must use a multi-byte encoding, such as fixed-width UNICODE or variable-width UTF-8. However, these encodings are standardised such that the first 128 characters (the standard ASCII character set) have the same 7-bit representation (with all high-order bits zeroed).

There is only one computer language that doesn't require a compiler - machine code. This is the language that the computer processor understands directly without having to be interpreted first. However it is difficult to understand and it is more usual for people to use assembly language.

Form factor:

Laptops: Portable, but slower and smaller screen. Good for students and frequent travelers.

Desktops: Stationary, but faster and you can get any screen size. Good for businesses, gaming, and at-home use.

Servers: Extremely fast, but useless to most people

Price:

Entry-level/budget: Fairly slow, good for word processing, email, music, online video, and online games.

Mid-road: Good speed, can handle most 2d and some 3d gaming, HD video, and basic video editing

Professional/gamer: Great speed, can handle all games, all video, and video editing and 3D rendering.

If you're still not sure, I'd get a Dell Inspiron desktop or laptop if you want Windows (or linux), or a MacBook air or 21 inch iMac if you want a Mac. If you are new to computers and have enough money for it, I'd get a Mac. If you have used computers a bit, you would know which one you prefer or are familiar with, they both have their pros (Macs work better, but Windows has the majority of popular software).

Speed is the magnitude of velocity, or the rate of change of distance.

The command is as follows :

del c:\[directory you want to delete] /s

This would need to be in a text file created in notepad, and saved as a .bat file. Or you could type EDIT from the command line to bring up the old DOS editor.

Improving answer: Step 1: Open up Notepad Step 2: Type the following code in: @echo off deltree [Your hard drive, usually C:]\[Directory you want to delete /s for quietly Step 3: Save as "whateveryouwantwithoutquotes.bat"

BIOS = Basic Input Output System

CMOS = Copper-Metal Oxide Semiconductor

BIOS is the interface which is built-in to a computer system's firmware used to configure the computer system hardware in very basic ways. BIOS can be used to enable or disable hardware integrated into the motherboard such as IDE controllers, USB hosts, audio controllers, video, and more.

It is often accessed by pressing F2 during startup, but this can change from manufacturer to manufacturer.

CMOS is a type of circuitry often powered by a battery which allows the information in BIOS to be stored. If the CMOS battery is drained or removed all the system configuration data in BIOS will be reset to factory defaults every time the computer is shut off. These small batteries are also commonly used in calculators, hearing aides, and wristwatches.

Due to the close relationship between the BIOS and the CMOS in the computer system, the two phrases are often incorrectly used as synonyms for each other. Some users will refer to opening the BIOS menu as "going into CMOS" or replacing the CMOS battery as "fixing the BIOS battery." However, none of this is seen as grammatically incorrect in common day-to-day conversation.

In order to have a career in computer programming you must know how computers work, their logic (binary logic) and ofcourse at least one mainstream programming language. The most used computer programming languages are C++ and C#. The C++ language is more powrfull and gives more capabitilies of interacting with the H/Y, while C# is far more easy for the novice user while being as powerful as C++.

According to the International System of Units: 1 terabyte (TB) = 10004 bytes (B) = 1012 B = 1,000,000,000,000 B

This is the definition used for hard drives, large data arrays, and other things this size. That is 1,000 times a gigabyte (GB) or 1,000,000 times a megabyte (MB), which is a million million bytes.

Among other things, a computer often uses one byte of space, in memory or on disk or tape, to represent one character (such as "c" or "&"). To think practically how much information a terabyte of disk space holds, let's assume we're storing text from magazine pages on a computer that does use one byte per character. At an average 5,000 characters per page, 1TB of disk space could hold 220 million pages of text!

(When referring to computer memory, 1000 is be replaced by 1024. This is because 1024 is the nearest power of 2 to a thousand. 1024 is 210. Memory does not exist in terabyte sizes, though, so "terabyte" always has the standard definition of 1,000,000,000,000 bytes.)

Software. Anything that is not hardware (a physical device) is software. This includes both the programs and data used by those programs.

The answer lies in difference in Object oriented and variable based technology. Object oriented technology has a lot of benefits. One of which is that it eliminates declaration of variables for every time usage. It means that disk space is saved as variables are declared only once and only object is created further which gets an instance of these variables. It makes logic to easy implement and understand. Its systematic way of implementing a problem statement.

• Free-lance programmers might charge anywhere between $20 or $30 an hour to $200 or $300/hour. It depends on their experience, the industry of their clients, what their specialty is, their location, etc., etc.
• According to the U.S. Department of Labor, the 2002 median annual earnings of salaried computer programmers was $60,290. The middle 50 percent earned between $45,960 and $78,140 a year. The lowest 10 percent earned less than $35,080; the highest 10 percent earned more than $96,860.
• According to the National Association of Colleges and Employers, starting salary offers for graduates with a bachelor's degree in computer programming averaged $45,558 a year in 2003.
• According to Robert Half International, a firm providing specialized staffing services, average annual starting salaries in 2003 ranged from $51,500 to $80,500 for applications development programmers/analysts, and from $55,000 to $87,750 for software developers. Average starting salaries for mainframe systems programmers ranged from $53,250 to $68,750 in 2003.
• Ask someone at the reference desk of your local public library for the Occupational Outlook Handbook. It lists all kinds of information you would need to know,(including the salary) of just about any occupation you can think of.
• They make around 200k to 500k a year. This is if the programer is well experienced and has all his certificates.
• Quite a lot. About forty to eighty thousand on average, and depending on where you work, over a hundred thousand (ex. in the NSA).

Every program requires at least one module. While it is possible to write an entire program in just one module, the larger the program becomes the greater the cost in maintenance. That is, whenever we make any changes to that module, the entire program has to be recompiled. By splitting the program into modules, only those modules that have changed need to be recompiled.

Modular code also makes it easier to organise code because each module represents a particular aspect of the program. Ideally each module should be self-contained but there will inevitably be cases where one module is dependant upon another. Indeed, there may be several modules dependant upon the same module. However, this is an advantage rather than a disadvantage because modular code makes it much easier to write re-usable code; code that can be used in more than one program. In this way we do not have to re-invent wheels writing duplicate code, we only need to write the code once and use it wherever and whenever it is required.

A personal computer is something that a single person (or family) would own and use. It's probably the type of computer you're using to browse this website. Mainframe computers are usually servers of some sort.

A personal computer might cost $500 to $5,000 depending on features, a mainframe might cost $100,000 to $10,000,000 depending on features.

A personal computer is almost always sold outright, rarely are they leased. Many mainframe computers are leased at a monthly rate a small fraction of total price, thus allowing easy upgrade to the next model at a small incremental monthly cost instead of buying a whole new machine outright.

Dual system 1 and 0

It can also depend what you mean by computer, and how deep you want to go. You can make a "Computer" with wood and strings, as proven by the Jaquard Loom. Hardware is key, no matter how basic. So, in theory (i guess) the Basic Language would be how the computer...works! If you want to go to the very basics.