Programming & Computer Science Answers

A real-time operating system is most likely to be used for which of the following task?

A. Controlling access to a shared resource in a network.

B. Ensuring that system clock works correctly on a server.

C. Managing the access to system files in a laptop computer.

D. Controlling the fuel injection system of an automobile engine.

In the memory hierarchy, the fastest memory is?

A RAM.

B Cache.

C CPU registers.

D) Virtual Memory.

Which of the following is NOT an advantage

or Dynamic RAMs?

A High density.

B Low cost.

C High speed.

D NO need of memory refresh.

The virtual memory of a computer system

may be:

A Of unlimited size.

B As big as the maximum addressing capability of the computer system.

C Of size equivalent to the total capacity of secondary storage plus that of RAM.

D) None or the above.

The simplified form of the expression

AB+ABC is:

A. AB

B. A(B+C)

C. AB+AC

A microprocessor has a data bus with 64 lines
and an address bus with 32 lines. The
maximum number of bits that can be stored
in memory is:
A 32 x 2^12.
B 32 x 2^64.
c 64 x 2^32.
D 64 x 2^64.

Decimal equivalent of the binary number

101001.1011 is?

A 41.7875.

B 415875.

c 41.6875.

D 41.1875.

In register addressing mode operands are
examined in:
A Cache memory.
B Secondary storage.
C The CPU.
D Primary memory.

The concept of pipelining is most effective in

improving performance if the tasks being

performed in different stages:

A Require different amounts of time.

B Require about the same amount of time-

C Require different amount of time with

time difference between any two tasks

being same.

D Require different amount with time

difference any two tasks being

different

In register addressing mode operands are

examined in:

A Cache memory.

B Secondary storage.

C The CPU.

D Primary memory.