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Explain Protection mechanism.
Protection mechanism: The subsequent mechanisms are commonly utilized for protecting files having programs and data.
(a) Access controls lists (ACL's) (b) Capability lists (C- lists)
These lists are utilized to make sure that uses only access files that are explicitly authorized access. These files contain
(i) files created by a user herself/himself
(ii) files owned by others, for that a user process explicit access privileged granted through other owners.
What is the function of CU? The control unit works as the nerve center that coordinates all the computer operations. It issues timing signals that governs the data transfer.
What is Central Processing Unit Central Processing Unit (CPU) performs all the arithmetic and logical calculations in a computer. The CPU is said to be the brain of the compute
In how many ways line of code of assembly language can be divided? A line of code of an assembly language program can be divided in three columns called as fields. The fields d
Advantages and Disadvantages of Public-key cryptography Advantages (i) Enhanced security and convenience (ii) Electronic records may be authenticated by affixing
Explain LRU Page replacement algorithm. LRU policy: It expands to least recently use. This policy proposes that we remove a page that last usage is farthest from present time
Ask question #Minimum Write a program to mask bits D3D2D1D0 and to set bits D5D4 and to invert bits D7D6 of the AX register. 100 words accepted#
Define Grammar of a language. A formal language grammar is a set of formation rules which describe that strings formed from the alphabet of a formal language are syntactically
a. Explain the hardware mechanism for handling multiple interrupt requests. b. What are handshaking signals? Describe the handshake control of data transfer during input and out
Explain the number unobtainable tone in strowger telephony with waveforms and the timings. In the following figure illustrates the number unobtainable tone that is continuous
Q. What do you mean by Resolution? Resolution is parameter which defines possible sharpness or clarity of a video image. Resolution is defined as number of pixels which make u
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