This document defines common units of digital storage, including bits, bytes, words, and double words. It explains that a bit is the smallest unit that can store 1 or 0, while a byte contains 8 bits. A word contains 16 bits, which is equivalent to 2 bytes. Finally, a double word is 32 bits long, consisting of 2 words or 4 bytes. These basic units are used to measure digital storage capacity in computers.
The document summarizes the different types of computer memory. It describes primary memory (RAM and ROM) and secondary storage. RAM is volatile and temporarily stores active data and programs, while ROM is non-volatile and stores permanent instructions. RAM types include SRAM and DRAM, while ROM types are PROM, EPROM, and EEPROM. Secondary storage is non-volatile and stores long-term data at a lower cost than primary memory.
This document defines common units of digital storage, including bits, bytes, words, and double words. It explains that a bit is the smallest unit that can store 1 or 0, while a byte contains 8 bits. A word contains 16 bits, which is equivalent to 2 bytes. Finally, a double word is 32 bits long, consisting of 2 words or 4 bytes. These basic units are used to measure digital storage capacity in computers.
The document summarizes the different types of computer memory. It describes primary memory (RAM and ROM) and secondary storage. RAM is volatile and temporarily stores active data and programs, while ROM is non-volatile and stores permanent instructions. RAM types include SRAM and DRAM, while ROM types are PROM, EPROM, and EEPROM. Secondary storage is non-volatile and stores long-term data at a lower cost than primary memory.
This document discusses binary digits and bytes. It explains that binary uses 1s and 0s and each character represents 8 bits or 1 byte. It then provides examples of common words and their bit sizes when represented in binary. For several words, it lists the binary code representations.
Bits are the basic units of information in computing representing either 1 or 0. 8 bits together form a byte, which can represent a single character. Common storage measurements are kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB) which are powers of 1000 or 1024 bytes. A computer's processor understands information by interpreting patterns of transistors being on or off, with a transistor on representing 1 and off representing 0.
The document summarizes the ASCII character set. It is split into 3 sections - control codes (0-31), standard characters (32-127), and special/international characters (128-255). The standard characters section includes letters, numbers, punctuation. The control codes section describes codes like newline, tab, carriage return. The special characters section includes accented letters for international languages.
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