KAMSC Computer Science Comprehensive Exam Questions Verified by Expert

KAMSC Computer Science Comprehensive Exam
Questions Verified by Expert

0100 0001 - Answer A



what does bit stand for - Answer binary digit



what is a byte - Answer 8 bits of info; smallest unit of info storage; character



what comes after every 4th bit - Answer a space



what is information stored with - Answer on (1) and off (0) switches



what are we dependent on because of its speed and storage - Answer CPU



ASCII (american standard code for information interchange) - Answer - 8 bit code

- limited in permutation (2^8 possible arrangements)

- ex. ASCII code for A = 0100 0001

- code for microcomputers



EBCDIC (extended binary coded decimal interchange code) - Answer - 8 bit code

- codes for mainframes

- limited in permutation



unicode - Answer - 16 bit code

- 2^16 possibilities

- reason there are so many perms is because of all the symbols



how many codes in unicode and ASCII are the same - Answer the first 256

, kilobyte (KB) - Answer ~1000 bytes (actually 1024)



megabyte (MB) - Answer 1 million bytes (1024^2)



gigabyte (GB) - Answer 1 billion bytes



terabyte (TB) - Answer 1 trillion bytes



what are computers classified by - Answer size (NOT POWER)



microcomputers - Answer - fit on a desktop

- ex. pc, desktop, or laptop



minicomputers - Answer - size of desk

- ex. PDP8 or VAX



mainframes - Answer - ex. IBM

- much bigger than desk



supercomputers - Answer - largest

- fastest



why do we use octal and hex - Answer computers dont represent info in octal/hex, but the human mind
cant comprehend binary codes well so octal and hex are convenient for abbreviating binary code



true or false: base 10 is easy to convert - Answer false; base 10 is much more tedious to convert



true or false: base 10 is not a power of 2 - Answer true