Module 5 - 7

Question 1

All information in a computer is stored and manipulated in the form of what?

Answer 1

Binary

Question 2

They can be found at the heart of every digital computer and are one of the most important parts of a CPU (Central Processing Unit).

Answer 2

Arithmetic unit or ALU

Question 3

It is a small amount of storage available as part of a CPU.

Answer 3

Register

Question 4

These are used to manipulate binary numbers since there are only two possible states of a switch: open or closed.

Answer 4

Transistor switches

Question 5

It provides further information about the status of a result: if it is zero, if there is a carry out, or if an overflow has occurred.

Answer 5

Flags

Question 6

ALU

Answer 6

Arithmetic Logic Unit

Question 7

CPU

Answer 7

Central processing unit

Question 8

FPU

Answer 8

Floating - point unit

Question 9

GPU

Answer 9

Graphics processing unit

Question 10

MAR

Answer 10

Memory address register

Question 11

MBR

Answer 11

Memory Buffer Register

Question 12

I/O AR

Answer 12

I/O address Register

Question 13

I/O I3R

Answer 13

I/O Buffer Register

Question 14

PC

Answer 14

Program Counter

Question 15

IR

Answer 15

Instruction Register

Question 16

FILO

Answer 16

First in and Last out

Question 17

MDR

Answer 17

Memory Data Register

Question 18

It is basically a storage space for units of memory that are used to transfer data for immediate use by the CPU (Central Processing Unit) for data processing.

Answer 18

Register

Question 19

It is used to indicate occurrence of a certain condition during an operation of the CPU.

Answer 19

Flag Register

Question 20

It stores data values fetched from main memory in the accumulator for arithmetic or logical operation.

Answer 20

Accumulator Register

Question 21

It is located inside the ALU, It is used during arithmetic & logical operations of ALU.

Answer 21

Accumulator Register

Question 22

Program Counter register is also known as

Answer 22

Instruction Pointer Register

Question 23

It is used for exchanging data between the I/O module and the processor.

Answer 23

I/O Buffer Register (I/O I3R)

Question 24

This register holds the address of memory where CPU wants to read or write data.

Answer 24

Memory Address Register (MAR)

Question 25

This register holds the contents of data or instruction read from, or written in memory.

Answer 25

Memory Buffer Register (MBR)

Question 26

it's used to store the data that will be stored or will be fetched from the computer memory

Answer 26

Memory Data Register (MDR)

Question 27

it's to act as a buffer as it can store anything that can be copied from the computer memory and can be used by the processor for further operations.

Answer 27

Memory Data Register (MDR)

Question 28

a set of memory blocks; the data is stored in and retrieved from these blocks in an order

Answer 28

Stack control Register

Question 29

This register holds the initial data to be operated upon, the intermediate results, and the final result of operation.

Answer 29

Accumulator Register

Question 30

The control unit takes instruction from this register, decodes and executes it by sending signals to the appropriate component of computer to carry out the task.

Answer 30

Instruction Register (IR)

Question 31

It's used to specify the address of a particular I/O device.

Answer 31

I/O Address Register

Question 32

This register is used to store the address of the next instruction to be fetched for execution.

Answer 32

Program Counter (PC)

Question 33

it's a register in a computer processor that contains the address (location) of the instruction being executed at the current time.

Answer 33

Program Counter (PC)

Question 34

It transfers data from external devices to processor and memory, and vice versa. It contains internal buffers for temporarily holding this data until it can be sent on.

Answer 34

I/O module

Question 35

It's a temporary storage area built into a CPU

Answer 35

Register

Question 36

It's a component of a computer's central processing unit (CPU)

Answer 36

Control unit

Question 37

The simplest computers use a multicycle microarchitecture

Answer 37

Multicycle Control unit

Question 38

the control unit often steps through the Von Neumann Cycle: Fetch the instruction, Fetch the operands, do the instruction, write the results

Answer 38

Multicycle computer

Question 39

typically use both the rising and falling edges of their square-wave timing clock

Answer 39

Multicycle Control Unit

Question 40

instructions flow through the computer

Answer 40

Pipelined Computer unit

Question 41

the control unit arranges for the flow to start, continue, and stop as a program commands.

Answer 41

Pipelined Computer unit

Question 42

translate each single instruction into a sequence of simpler instructions

Answer 42

Translating Control Units

Question 43

Many modem computers have controls that minimize power usage. In battery-powered computers, such as those in cell-phones, the advantage is longer battery life,

Answer 43

Control units for low-powered computers

Question 44

Implemented through use of combinational logic units, featuring a finite number of gates

Answer 44

Hardwired Control Unit

Question 45

the control signals that are important for instruction execution control are generated by specially designed hardware logical circuits

Answer 45

Hardwired Control Unit

Question 46

The idea of microprogramming was introduced by _____ in 1951

Answer 46

Maurice Wilkes

Question 47

______ were organized as a sequence of microinstructions and stored in special control memory

Answer 47

Microprograms

Question 48

Subsequent instruction words are fetched into the instruction register in a normal way.

Answer 48

microprogrammed control units

Question 49

A process that continually fetches instructions from a memory store, decodes them into operations and executes them to perform a calculation

Answer 49

Fetch - decodes - execute

Question 50

The part of a computational machine that contains the machine instructions or data for performing general purpose calculations.

Answer 50

Memory Unit

Question 51

Perform by a memory unit

Answer 51

Fetch

Question 52

Perform by a Control Unit

Answer 52

Decode

Question 53

Perform by a arithmetic unit

Answer 53

Execute

Question 54

It also decodes instructions and makes sure the correct system operations are consequently performed

Answer 54

Control Unit

Question 55

An ______ is a hardware subsystem that performs arithmetic operations on binary inputs.

Answer 55

arithmetic unit