"Data Compression and Data Processing”
"Data Compression and Data Processing” Please respond to the following:
* Explain whether or not you believe there is a discernible difference in efficiency between compressing and decompressing audio data and compressing and decompressing image data. Provide at least three reasons for your argument.
There are efficiency differences between a given compressions for audio or image, this is due to: 1. The difference in data, example bmp, jpg, gif of the same image, mp3, wav, ogg for audio files. 2. The difference in data types, examples are zip, 7z 3. How it is stored. Different compression per storage type, hard drive, cd/dvd,
* Determine whether or not computers can process numbers faster and more efficiently than alphanumeric character data. Provide at least three reasons to support your answer.
Computer memory has two dimensions a length and a width. A single memory chip may have a length of one million memory cells (also known as addresses), each of which are 8 bits, or 1 byte, wide. Although the chip is 1 byte wide, the memory controller may access several bytes at once. When several bytes are joined together, they form a word. A word is usually 2, 4 or 8 bytes long. If you have a memory controller that only accesses word addresses, you can send a byte of data to it using padding.
Data entry that requires the input of letter characters and number characters into an electronic environment is called alphanumeric data entry. Although a lot of data entry jobs only require numbers to be entered from a 10-key keyboard, the majority of these positions require some alphanumeric work to be performed on occasion, if not regularly. Companies with alphanumeric data entry jobs primarily hire based upon keystroke speed. Speed is measured in keystrokes per hour rather than words per minute as it is described for regular typing. Most jobs require that alphanumeric data entry operator’s type between 7,000 and 12,000 KPH.
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* Explain whether or not you believe there is a discernible difference in efficiency between compressing and decompressing audio data and compressing and decompressing image data. Provide at least three reasons for your argument.
There are efficiency differences between a given compressions for audio or image, this is due to: 1. The difference in data, example bmp, jpg, gif of the same image, mp3, wav, ogg for audio files. 2. The difference in data types, examples are zip, 7z 3. How it is stored. Different compression per storage type, hard drive, cd/dvd,
* Determine whether or not computers can process numbers faster and more efficiently than alphanumeric character data. Provide at least three reasons to support your answer.
Computer memory has two dimensions a length and a width. A single memory chip may have a length of one million memory cells (also known as addresses), each of which are 8 bits, or 1 byte, wide. Although the chip is 1 byte wide, the memory controller may access several bytes at once. When several bytes are joined together, they form a word. A word is usually 2, 4 or 8 bytes long. If you have a memory controller that only accesses word addresses, you can send a byte of data to it using padding.
Data entry that requires the input of letter characters and number characters into an electronic environment is called alphanumeric data entry. Although a lot of data entry jobs only require numbers to be entered from a 10-key keyboard, the majority of these positions require some alphanumeric work to be performed on occasion, if not regularly. Companies with alphanumeric data entry jobs primarily hire based upon keystroke speed. Speed is measured in keystrokes per hour rather than words per minute as it is described for regular typing. Most jobs require that alphanumeric data entry operator’s type between 7,000 and 12,000 KPH.
Sources from