Answer:
b. the interface between the hard disk and the system bus
Explanation:
A controller, in the most basic computing terms, is a hardware chip or card that falls between two hardware components. Thus, a computer’s motherboard will always have a controller that interfaces with RAM, hard disk, DVD drives or other hardware components. Being an interface between two hardware devices facilitate incoming and outgoing commutations. Option B therefore, is the correct answer because it interfaces between the hard disk and sytem bus, which are both hardware components.
<span>A 16-bit integer can store 216 (or 65,536) distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767. Hence, a processor with 16-bit memory addresses can directly access 64 KB of byte-addressable memory.</span>
Answer:
2 bytes
Explanation:
Size of the MAR ( memory address register ) = 18 bits = 2 bytes
Given that
address space = 256 K = 2^8
number of address location= 2^8 * 2^10 ( where 1K = 2^10 )
= 2^18
Given the number of address location = 2^18 ;
Hence 18 bits are required to store the address of the instruction
When permanent magnets of a motor are replaced with more powerful ones, the motor rotation will increase. This is because there is more electricity being generated.
Answer:
Explanation:
EMAIL query ? comment or request a type of GCSE calculation not covered? ... atomic masses are Al = 27 and O = 16; so the relative formula mass RFM or Mr = (2 x 27) + (3 x 16) = 102
