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List the four steps that are essential to run a program on a completely dedicated machine.
a. Reserve machine time.
b. Manually load program into memory.
c. Load starting address and start execution.
d. Monitor and control implementation of program from console.
Explain what ISAM is. Indexed sequential access method. The file is stored in sorted order. ISAM has a master index file, indicating in what part of another index file the key
EXPLAIN THE SCAN SHUDDULING WITH DIAGRAM
Multitasking - An Operating systems that is proficient of allowing multiple software processes to be run at the same time. Below are some instances of multitasking Operating Syste
what do you mean by starvation?explain in detail
Linked allocation With linked allocation, every file is a linked list of disk blocks; the disk blocks might be scattered anywhere on the disk. The directory has a pointer to th
Additional Reference bits algorithm Here we keep an 8-bit byte for every page in memory. At standard intervals the reference bit is shifted by the OS. If a shift register conta
List operations to be performed on directories. Search for a file, delete a file, create a file, list a directory, rename a file, and traverse the file system.
What are the operations that can be performed on a directory? The operations that can be performed on a directory are Search for a file Create a file Delete a
List sample file types, based on use, on the VAX under VMS. source programs (.BAS, .FOR, .COB, .PLI, .PAS, .MAR) data files (.DAT) text files (.TXT) command proced
describe main points of multiuser and multi tasking operating systems.
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