Table of Contents
- 1 What is the difference between 8-bit and 7-bit ASCII?
- 2 What is the relevance of popular 7-bit and 8-bit binary code?
- 3 How many different characters can be encoded using 8 bits?
- 4 What are the similarities and differences between the binary and decimal systems?
- 5 How many characters can 8 bit ASCII represent?
- 6 What is the difference between ASCII and extended ASCII?
What is the difference between 8-bit and 7-bit ASCII?
The difference between 7-bit and 8-bit ASCII is pretty simple, assuming that you have a keyboard with the latin alphabet. 7-bit only uses characters that you can find on the keyboard. 8-bit uses additional characters that you cannot find on your keyboard, but which exist in text mode of the old MS…
What is the relevance of popular 7-bit and 8-bit binary code?
Control code chart
| Binary | Oct | Hex |
|---|---|---|
| 001 0100 | 024 | 14 |
| 001 0101 | 025 | 15 |
| 001 0110 | 026 | 16 |
What are 7-bit ASCII?
ASCII is a 7-bit code, representing 128 different characters. When an ascii character is stored in a byte the most significant bit is always zero. Sometimes the extra bit is used to indicate that the byte is not an ASCII character, but is a graphics symbol, however this is not defined by ASCII.
What is 8bit ASCII?
ASCII is an 8-bit code. That is, it uses eight bits to represent a letter or a punctuation mark. Eight bits are called a byte. A binary code with eight digits, such as 1101 10112, can be stored in one byte of computer memory.
How many different characters can be encoded using 8 bits?
256 different characters
Character sets used today in the US are generally 8-bit sets with 256 different characters, effectively doubling the ASCII set. One bit can have 2 possible states.
What are the similarities and differences between the binary and decimal systems?
What are the similarities and differences between the binary and decimal systems? Similarities are both systems use the concept of place value, and in both systems, we can calculate each digit’s value by multiplying the digit with the matching power of 2 and 10, the sum is the total value of the number.
What is the most common use for binary code?
binary code
| decimal | binary | conversion |
|---|---|---|
| 7 | 111 | 1 ( 22 ) + 1 ( 21 ) + 1 ( 20 ) |
| 8 | 1000 | 1 ( 23 ) + 0 ( 22 ) + 0 ( 21 ) + 0 ( 20 ) |
| 9 | 1001 | 1 ( 23 ) + 0 ( 22 ) + 0 ( 21 ) + 1 ( 20 ) |
| 10 | 1010 | 1 ( 23 ) + 0 ( 22 ) + 1 ( 21 ) + 0 ( 20 ) |
What is the ASCII value of 8?
Complete ASCII Table
| ASCII-number | Common characters (in Windows) | Symbol |
|---|---|---|
| 056 | 8 | 8 |
| 057 | 9 | 9 |
| 058 | : | : |
| 059 | ; | ; |
How many characters can 8 bit ASCII represent?
Character sets used today in the US are generally 8-bit sets with 256 different characters, effectively doubling the ASCII set. One bit can have 2 possible states.
What is the difference between ASCII and extended ASCII?
ASCII stands for American Standard Code for Information Interchange. Extended ASCII is a version that supports representation of 256 different characters. This is because extended ASCII uses eight bits to represent a character as opposed to seven in standard ASCII (where the 8th bit is used for error checking).