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What is the largest decimal value that can be represented in binary using two bytes?
11b which is 1*2 + 1*1 = 3 would be for two bits. But a byte is 8 bits, so 2 bytes is 16 bits. The largest binary number is [2^16 - 1], which is 65535 (base ten)
What are the advantages and disadvantage of BCD number system?
Oh, dude, the BCD number system is like that old-school friend who still uses a flip phone. The advantage is it's easy for humans to read since each decimal digit is represented by a 4-bit binary number. But the downside is it's not very efficient in terms of storage space compared to other number systems. So, like, it's great for nostalgia but not so much for modern computing efficiency.
Why does a java byte variable only hold a minimum value of -128 and a maximum value of 127. I dont get why only those range of 3 digits. Its just holding 3 characters really. Why not hold AB2?
A byte is 8 binary bits, each of which hold a value of 0 or 1 (true or false). When counting in binary, a value of 11111111 is the highest value a byte can hold, this is 255. It doesn't matter what programming language is assigning a value to the byte, the highest it can hold is 255. A 'signed' byte uses one bit for the sign, and 7 for the value. Hence 7 bits can show values of up to 128 either side. That's a positive value of 1-127, along with the 0, and then negative values of -1 to -128. Again, regardless of the system assigning the value, 8 bits can only produce 255 different combinations.
What does a byte represent?
A byte represented of 8 bits
How many bits contain a byte?
1 byte = 8 bits
