What is memory card???

 An electronic flash memory storage disk commonly used in consumer electronic devices such as digital cameras, MP3 players, mobile phones, and other small portable devices. Types of memory cards include PCMCIA, CompactFlash, SD Card, MiniSD, xD-Picture Card and others. Memory cards are usually read by connecting the device containing the card to your computer, or by using a USB card reader.

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What is C ???

A high-level programming language developed by Dennis Ritchie at Bell Labs in the mid 1970s. Although originally designed as a systems programming language, C has proved to be a powerful and flexible language that can be used for a variety of applications, from business programs to engineering. C is a particularly popular language for personal computer programmers because it is relatively small -- it requires less memory than other languages.
The first major program written in C was the UNIX operating system, and for many years C was considered to be inextricably linked with UNIX. Now, however, C is an important language independent of UNIX.
Although it is a high-level language, C is much closer to assembly language than are most other high-level languages. This closeness to the underlying machine language allows C programmers to write very efficient code. The low-level nature of C, however, can make the language difficult to use for some types of applications.
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programming language

A vocabulary and set of grammatical rules for instructing a computer to perform specific tasks. The term programming language usually refers to high-level languages, such as BASIC, C, C++, COBOL, FORTRAN, Ada, and Pascal. Each language has a unique set of keywords (words that it understands) and a special syntax for organizing program instructions.
High-level programming languages, while simple compared to human languages, are more complex than the languages the computer actually understands, called machine languages. Each different type of CPUhas its own unique machine language.

Lying between machine languages and high-level languages are languages called assembly languages. Assembly languages are similar to machine languages, but they are much easier to program in because they allow a programmer to substitute namesfor numbers. Machine languages consist of numbers only.
Lying above high-level languages are languages called fourth-generation languages (usually abbreviated 4GL). 4GLs are far removed from machine languages and represent the class of computer languages closest to human languages.
Regardless of what language you use, you eventually need to convertyour program into machine language so that the computer can understand it. There are two ways to do this:
1) compile the program
2) interpret the program
Recommended Reading: See compile and interpreter for more information about these two methods.
The question of which language is best is one that consumes a lot of time and energy among computer professionals. Every language has its strengths and weaknesses. For example, FORTRAN is a particularly good language for processing numerical data, but it does not lend itself very well to organizing large programs. Pascal is very good for writing well-structured and readable programs, but it is not as flexible as the C programming language. C++ embodies powerful object-oriented features, but it is complex and difficult to learn.
The choice of which language to use depends on the type of computer the program is to run on, what sort of program it is, and the expertise of the programmer.

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6x64 decoder can be formed with four 4x16 decoder and one 2x4 decoder

6x64 decoder can be formed with four 4x16 decoder and
one 2x4 decoder

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5x32 decoder can be formed with four 3x8 decoder and one 2x4 decode

5x32 decoder can be formed with four 3x8 decoder and
one 2x4 decode

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Decoder Expansion

5x32 decoder can be formed with four 3x8 decoder and
one 2x4 decode

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Friendship Day

Friendship day was originally founded by Hallmark in 1919. It was intended to be a day for people to celebrate their friendship by sending eachother cards, but by 1940 the market had dried up, and eventually it died out completely. However, in 1998 Winnie the Pooh was named the world’s Ambassador of Friendship at the United Nations (believe it or not!), and in April 2011 the United Nations officially recognised 30th July as International Friendship Day; although most countries celebrate on the first Sunday of August!
According to the Friendship Day declaration, we are invited to “observe this day in an appropriate manner, in accordance with the culture and other appropriate circumstances or customs of their local, national and regional communities, including through education and public awareness-raising activities”.

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