3

Question 1

the tangible, physical parts of the computer and related devices

Answer 1

hardware

Question 2

main units of a computer

Answer 2

processor, main storage, input, output

Question 3

interprets and carries out the basic instructions that operate a computer

Answer 3

processor

Question 4

also called the memory or the primary storage

Answer 4

main storage

Question 5

device used to send data to a computer

Answer 5

input

Question 6

device used to send data to a computer

Answer 6

input

Question 7

device used to send data from a computer to other devices

Answer 7

output

Question 8

interprets and carries out the basic instructions that operate a computer; it may
also be called the central processing unit or the CPU

Answer 8

processor

Question 9

CPU

Answer 9

central processing unit

Question 10

processor contains…

Answer 10

control unit, alu, registers, system clock

Question 11

directs the flow of instructions and data inside the CPU and acts as a traffic
controller; it interprets each instruction and initiates the appropriate action to carry out.

Answer 11

control unit

Question 12

performs the arithmetic and logical calculations inside the
CPU

Answer 12

ALU

Question 13

ALU

Answer 13

arithmetic and logic unti

Question 14

temporarily holds data and instructions; they are small high-speed location
inside the processor

Answer 14

registers

Question 15

controls the timing of computer operations; it generates regular electronic
impulses (ticks) that sets the operating pace of the system unit components

Answer 15

system clock

Question 16

the memory stores instructions waiting to be executed by the processor, the data needed by
those instructions and the results of processed data (information).

Answer 16

main storage

Question 17

memory stores three (3) basic types of items:

Answer 17

1. Operating system and other system software
2. Application programs
3. Data / Information

Question 18

types of memory

Answer 18

RAM, ROM, CMOS

Question 19

RAM

Answer 19

random access memory

Question 20

stores data and instructions for processing; volatile

Answer 20

ram

Question 21

means the data/program in memory are erased once power is cut off

Answer 21

volatile

Question 22

high speed holding area ; for those information which are frequently used by
the CPU

Answer 22

cache memory

Question 23

ROM

Answer 23

read only memory

Question 24

contains stored instructions that a computer requires to be able
to do its basic routine operations; non-volatile

Answer 24

ROM

Question 25

CMOS

Answer 25

complementary metal-oxide semiconductor

Question 26

provides information every time computer is turned on, e.g. RAM capacity, date/time

Answer 26

cmos

Question 27

a hardware or peripheral device used to send data to a computer

Answer 27

input device

Question 28

allows users to communicate and feed instructions and data to computers for processing, display, storage and/or transmission.

Answer 28

input device

Question 29

• Optical Mark Recognition • Sensors • Touch Screen • Light Pen • Speech Synthesizers- converts human speech into digital form or written text into computerized voice

Answer 29

input device

Question 30

any device used to send data from a computer to another device or user

Answer 30

output device

Question 31

headphone, printer, speaker

Answer 31

output device

Question 32

where data are stored permanently

Answer 32

Secondary or Auxiliary Storage Devices

Question 33

outside the primary storage and serves just like a filing cabinet

Answer 33

Secondary or Auxiliary Storage Devices

Question 34

We store data in an auxiliary storage device for 2 reasons:

Answer 34

1. Primary storage can only store a limited amount of data 2. Data stored in primary storage are volatile and temporary

Question 35

- Magnetic tape - Data are stored serially and can only be accessed in a serial manner; high capacity; cheap - Magnetic Disk - Direct access storage media; high capacity and fast retrieval speed; Reads/ write data through the use of electromagnetism - Optical Disc (CD, DVD, Blu-ray) – Read / write data through light/laser beams - Solid State Drives - Use integrated circuit assemblies as memory - External Drive - Flash Drive - Cloud

Answer 35

secondary or auxiliary storage device

Question 36

peopleware

Answer 36

Charles Babbage, Lady Ada Lovelace, Alan Turing

Question 37

Most professional ICT work can be classified into three (3) broad areas:

Answer 37

1. Information systems / Information Technology 2. Computer systems engineering 3. Computer science

Question 38

evaluate customer business needs, and provides business solutions

Answer 38

Business Analysis Career

Question 39

guide businesses in improving processes, products, services and software through data analysis. These agile workers straddle the line between IT and the business to help bridge the gap and improve efficiency.

Answer 39

Business Analyst

Question 40

solve organizational information problems and requirements by analyzing requirements; designing computer programs; recommending system controls and protocols.

Answer 40

Business Systems Analyst

Question 41

design, install, repair and service of computers

Answer 41

Computer Engineering Career

Question 42

evaluate, design, and maintain computer hardware and software systems. They develop, test, and design, computer processors, circuit boards, and network systems

Answer 42

Computer Engineer

Question 43

develop, improve, and test components and systems including circuit boards, processors, and memory cards for computers and other devices

Answer 43

Hardware Design Engineer

Question 44

also known as an IT support engineer, they help in resolving technical issues within different components of computer systems, such as software, hardware, and other network-related IT related problems

Answer 44

Technical Support Engineer

Question 45

develop, test, and evaluate software and personal computers by combining their knowledge of engineering, computer science, and math analysis

Answer 45

Computer Systems Engineer

Question 46

developed an algebraic system to treat the logic functions, which is now called Boolean algebra

Answer 46

George Boole (1815 – 1864)

Question 47

said to be the founder of Digital Circuit Design; It was in 1938 when Shannon applied boolean algebra to telephone switching circuits. And it was then the engineers realized that boolean algebra could be used to analyze and design computer circuits

Answer 47

Claude Shannon (1916-2001)

Question 48

- A branch of mathematics developed by George Boole - Provides a system of logic and reasoning using true and false statements suitable for representing switching circuits - The basic operations are complementation, multiplication, and addition. In digital systems, these operations are performed by inverters, AND gates, and OR gates respectively

Answer 48

Boolean Algebra

Question 49

Ordinary algebra deals with ____ numbers, which consist of an infinite set of elements. Boolean algebra deals with only two elements, ____

Answer 49

real, 0 and 1

Question 50

Boolean algebra defines an operator called ____ which is not available in ordinary algebra

Answer 50

complement

Question 51

Boolean algebra does not have additive or multiplicative inverses, so there are no _____ or _____ operations

Answer 51

subtraction, division

Question 52

Computer circuits are often called

Answer 52

logic circuits

Question 53

logic circuits are called

Answer 53

gates

Question 54

a digital circuit having one or more input signals but only one output signal

Answer 54

gate

Question 55

basic gates

Answer 55

and, or, not

Question 56

inversion

Answer 56

not

Question 57

multiplication

Answer 57

and

Question 58

addition

Answer 58

or

Question 59

'

Answer 59

Inversion NOT

Question 60

•

Answer 60

Multiplication AND

Question 61

+

Answer 61

Addition OR

Question 62

universal gates

Answer 62

NAND and NOR Gates

Question 63

a logic gate that can be used to construct all other logic gates

Answer 63

universal gates

Question 64

it reduces the number of varieties of gates

Answer 64

universal gates