CHECK SUMS
Memory Organization
•The memory unit consists of binary cells and two registers named MAR (Memory Address Register) & MDR (Memory Data Register). •The MAR holds the address of the word [each memory location stores 32 bits (8 hexadecimal digits) which we call a word] in the memory to be accessed. •The data read from the memory or […]
ASCII (American Standard Code for Information Interchange)
•ASCII is the most often used code to represent information. •A binary field of 7 bits to represent each character, so the total of 27 = 128 unique characters can be represented by 7 bits. •But some systems use an expanded version of the ASCII code with 8 bits (256 characters). •To represents a typed […]