It can do these operations up to 300 times faster than doing the same calculations using software on the 80386. The SX series of Processor Chips Intel also manufactures an SX version of the 80386 and 80486 processors. The 80386SX is the same as the 80386DX internally, but it talks to memory 16bits at a time rather than 32bits at a time. The 80486SX processor is the same as the 80486DX except for two notable features. The operating systems first job is to initialise the hardware of the computer system, before running application programs.
Single user means only one person uses the computer at a time.
Single tasking means that it essentially only runs one application program at a time, and has no inherent support for running more than one application program simultaneously. In addition, these files must be first on the diskette. The two .sys files are transferred to a blank diskette by using the sys command. The following command sequence illustrates the commands necessary to create a system diskette which is used to boot the computer system.