Which base is usually used to display a binary file to a user? - Answers Base 16
How many different numbers can be represented with n bits? - Answers 2^n
What is a context switch? - Answers The operating system switching from one process to
another
Which does IDS stand for in network security? - Answers Intrusion Detection System
Which property is required for storing passwords? - Answers Confidentiality
Draw a sketch of the von Neumann Architecture and name the different components - Answers
Draw on paper
How many bits are needed to express 1024 numbers? - Answers n = 10, thus 10 bits are needed
How many bits are in one Gibit? - Answers One gibit is 2^30 bits
Explain the subtraction of two positive integers using 2's component arithmetic. - Answers
Subtracting B from A is the same as adding A and -B. To negate B in the 2's complement we
have to flip all the bits and add 1. We can add the result to A using binary addition.
Give one reason why signed integer arithmetic is not suitable for computation of 3D graphics -
Answers Large number calculations in 3D modelling are much more efficient in floating point
Identify and explain the roles of the three main components of a Central Processing Units -
Answers Arithmetic Logic Unit : Performs Arithmetic operations
Control Unit: Performs the fetch, decode and execute cycle
Registers: Temporary storage data and instructions
Explain the difference between a direct jump and an indirect jump instruction - Answers A direct
jump causes the CPU to continue execution at the given address
Explain the concept of a flipflop circuit - Answers A flipflop is a sequential circuit that can store
one bit of information, and the stored information can be read and changed at a later point in
time
Explain the difference between sequential and combinational circuits - Answers Sequential
circuits get an output depending on the previous inputs while the combinational circuits
depends on its current inputs
What does the abbreviation "POST" stand for? - Answers Power On Self Test
Give a possible reason why 3D graphics are not available for firmware configurations - Answers