Com 212 intro to system programming book Theory



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com-212-introduction-to-system-programming-theory
9833 SS1 FISHERY LESSON NOTE
OPERATING SYSTEM
Figure An operating system (commonly abbreviated computer system that is responsible for the management and coordination of activities and the sharing of the limited resources of the computer. The operating system acts as a host for applications that are run on the machine. As a host, one of the purposes of an operating system is Learning Outcome for this week insight into the concept of Operating System The meaning and work of pass Assembler. pass Assembler Go through the program example and give a line byline explanation of the working of a pass assembler We have seen that atypically modern assembler creates object code by translating assembly codes, and by resolving symbolic names for memory locations and other entities. The use of symbolic references is a key feature of assemblers, saving tedious calculations and manual address updates after program modifications. Most assemblers also facilities for performing textual substitution—e.g., to generate common short inline, instead of in a subroutine. Figure 2.1 Location of Operating System commonly abbreviated OS and O/S) is the software component of a system that is responsible for the management and coordination of activities and the sharing of the limited resources of the computer. The operating system acts as a host for that are run on the machine. As a host, one of the purposes of an operating system is Page | 11 Go through the program example and give a line byline explanation of the working of a by translating assembly for memory locations and other entities. The use of symbolic references is a key feature of assemblers, saving tedious calculations and manual address updates after program modifications. Most assemblers also to generate common short
) is the software component of a system that is responsible for the management and coordination of activities and the sharing of the limited resources of the computer. The operating system acts as a host for that are run on the machine. As a host, one of the purposes of an operating system is

Page | 12 to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers, including handheld computers, desktop computers, supercomputers, and even video game consoles, use an operating system of some type. Some of the oldest models may however use an embedded operating system, that maybe contained on a compact disk or other data storage device. Common contemporary operating systems include Microsoft Windows, Mac OS, Linux and
Solaris. Microsoft Windows has a significant majority of market share in the desktop and notebook computer markets, while servers generally run on Linux or other Unix-like systems. Embedded device markets are split amongst several operating systems We will now discuss a pass and pass assembler and see how they works,

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