Archive for November, 2011
File Compression Programs
Posted by admin in File Programs on November 29, 2011
The most popular file compression formats are ZIP and RAR. The best file compression programs for these formats are WinZip, WinRAR and 7-Zip. However, you should be aware as to how to compress a file, before you start using these programs.
WinRAR
WinRAR; one of the best compression tools, is a 32-bit program and is excellent for multimedia compression, because it chooses the best file compression methods. WinRAR lets you change directories through the ‘Folder Tree Panel’. The RAR format compresses files by 8 to 15 percent better than the ZIP format. RAR extractors are also easily available for free downloads. WinRAR has virus scanning built-in. However, the decompression speed is slower than the ZIP format. WinRAR also decompresses files from TAR, ACE, BZ2, JAR, ISO, and ZIP formats. WinRAR has Unicode support for international characters in file names, and also supports long file names. WinRAR repairs corrupted RAR files. WinRAR supports archive locking, to prevent modification of archive, so others cannot change the content or the comment in the compressed files. WinRAR allows creation of self-extracting files, which end with the EXE extension, so that the end-user doesn’t need decompression software to extract the files. WinRAR has an option to encrypt files using AES (Advanced Encryption Standard), to ensure the security and privacy of files. WinRAR provides a way to wipe or delete temporary files. WinRAR has a feature for authenticity verification, which adds information about the creator to the archive. WinRAR can search for text in archives. Read the rest of this entry »
What Do We Use Computers For?
Posted by admin in Use Computers on November 25, 2011
A computer is an electronic device, which executes software programs. It is made up of two parts – hardware and software . The computer processes input through input devices like mouse and keyboard. The computer displays output through output devices like a monitor and printer. The size of a computer varies considerably from small personal computers to gigantic supercomputers which require an entire building to host them. The speed of computers also has a very large range. Computers have become indispensable in today’s world. Let us take a look at some of the uses of computers.
What Do We Use Computers For?
Word Processing – Word Processing software automatically corrects spelling and grammar mistakes. If the content of a document repeats, you don’t have to type it each time. You can use the copy and paste features. You can print documents and make several copies. It is easier to read a word-processed document than a handwritten one. You can add images to your document.
Internet – It is a network of almost all the computers in the world. You can browse through much more information than you could do in a library. That is because computers can store enormous amounts of information. You also have very fast and convenient access to information. Through E-Mail, you can communicate with a person sitting thousands of miles away in a few seconds. Chat software enables one to chat with another on a real-time basis. Video conferencing tools are becoming readily available to the common man. Read the rest of this entry »