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Bootstrap loader:
The critical programs are loaded into memory by the bootstrap loader at start-up time and will remain resident as long as the computer is running. The bootstrap for most modern computers is stored in read-only memory; on some computers, part of the resident operating system will also be contained in ROM, so that it is permanently resident in memory and always available for use. The memory resident components of an operating system are commonly known as the kernel of the operating system. For example, the operating system program accepts user commands must always be present, as well as the programmes that handle request from the user systems and manage resources in a multitasking system. On the other hand, an operating system command that formats a new disk is only used occasionally; it can be loaded and executed only when it is required. Today, the trend is towards design of nano kernel or micro kernel. The essence of these kernels is to keep the basic kernel smaller.
Output Devices: Each output unit of computer system transmits information from the CPU and converts the electrical pulses to an appropriate output form. A printer, for example
NUMBER SYSTEM: We are familiar with decimal number system which uses ten distinct symbols from 0...9, and has base 10. In the decimal number system a number n 4 n 3 n 2 n 1
THE MICROPROCESSOR The three fundamental units, which comprise a CPU, have now been discussed in general terms. So too has a microprocessor, because a microprocessor can be de
what is cpu
Compiler A compiler is a special program which translates programs written in high level language into machine language. The original program is called the source progra
Advantages:- • Sharing Treads permit the sharing of a lot resources that cannot be shared in process, for instance, sharing code section, data section, Operating System resource
#que1) Create telephone directory. • The heading should be 16-point Arial font in bold • The rest of the document should use 10-point font size • Other headings should use 10-point
I NEED FLOW CHART ANT DRAWINGS OF BASIC OPERATIONS OF COMPUTER
code in c program
Assignment : It is composed of variable name, an assignment operator of the language and a value or variable or some expression as per composition allowed based on rules defined
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