A level south west regional mock gce 2022 computer science 2
A level south west regional mock gce 2022 computer science 2
Describe the function
(3) Address bus
jti) Ptognin Counter
(C) Hard disk drive
Explain the difference between sequential access and random access, giving in each
storage medium that supports it
Determine the hexadecimal equivalent of the binary number 1111011 loioni
A floating-point number is stored using 4 bits for the mantissa and 4 bits for the exponent, both
complement Express the binary number 110]1110 in normalized floating-point.
(i) (a) What do you understand bv the stored program concept in Von Ncumman Architecture?
(h ) A machine instruction is made oftwo mam parts. Describe each of these parts.
(c) State two important things that should be considered when designing an instruction set
(m) U)
Un,
(b) t’sing X-hit one’s complement notation, add the numbers 99 and 67 H mMi)
(n) Consider the truth table below with inputs A and B, and outputs X and Y
