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Shadow RAM is a copy of Basic Input/Output Operating System (BIOS) routines from read-only memory (ROM) into a particular area of random access memory (RAM) so that they can be accessed more rapidly. Access in shadow RAM is typically in the 60-100 nanosecond range while ROM access is in the 125-250 ns range. In some operating systems like DOS, certain BIOS routines are not only used during the boot or start-up of the system, but also during normal operation, particularly to drive the video display terminal. In Windows and OS/2, thus, these routines are not used and the use of shadow RAM is not essential. In some systems, the user can turn the use of shadow RAM off or on.
In order to support IA-32, the Itanium can switch into 32-bit mode with special jump escape instructions. The IA-32 instructions have been mapped to the Itanium's functional units.
What are the Advantages of store program control (I) Easy to maintain (II) Easy to control (III) Wide range of services can be provided to customers (IV) Flexible
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CONTROL SECTION: The control section directs the flow of traffic (operations) and data. Also it maintains order within the computer. The control section chooses one program sta
Q. Explain XNOR gate with three input variable and draw necessary circuits. Q. Simplify FOLLOWING Using K-Map 1. m0 + m1 + m6 + m7 + m12 + m13 + m8 + m9 2. m0 + m2 + m4 +
Differentiate between Transport and Session layers of OSI model. OSI Model Transport Layer The transport layer utilizes the services provided through the network layer, as
What are the functions of virtual file system (VFS)? a. It splits file-system-generic operations from their implementation explaining a clean VFS interface. It allows transpare
Give detail explanation about Arithmetic Micro-operations These micro-operations perform some essential arithmetic operations on numeric data stored in the registers. These bas
Secondary storage: Secondary storage (or external memory) differs from primary storage in that aspect it is not accessible by the CPU directly. The computer typically uses its
Can a structure be used within a structure? Yes , a structure can be used within a structure known as nesting of structures.
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