In magnetic disk storage, the time taken to move the disk arm to the desired cylinder is called i) seek time ii) rotational latency iii) circular delay iv) sectional wait Which of the following generally provides the lowest access time? i) main memory ii) registers iii) magnetic disk iv) cache storage Which of the following generally provides the cheapest means of storage (per bit)? i) cache storage ii) main memory iii) magnetic tapes iv) magnetic disks A particular system runs almost exclusively very I/O-bound processes. At any particular moment. therefore, most of these processes are likely to be i) running ii) ready iii) blocked iv) signalling