COMP ARCH PRELIM

Question 1

a technique to represent and work with numbers

Answer 1

NUMBER SYSTEM

Question 2

the most common number system

Answer 2

DECIMAL NUMBER SYSTEM

Question 3

the value of digits will depend on its position

Answer 3

POSITIONAL VALUE SYSTEM

Question 4

in binary number system, what is the Least significant bit (LSB)

Answer 4

the rightmost digit

Question 5

in binary number system, what is the Most significant bit (MSB)

Answer 5

the leftmost digit

Question 6

What does the binary number system represent?

Answer 6

on and off

Question 7

what is each binary digit called?

Answer 7

bit

Question 8

_________ is measured in terms of how many bits it can store

Answer 8

Computer memory

Question 9

how many bits in 1 byte

Answer 9

8 bits

Question 10

it has 8 digits from 0-7

Answer 10

OCTAL NUMBER SYSTEM

Question 11

What digits are used in the hexadecimal number system?

Answer 11

0-9 & A-F

Question 12

7 bit code that has 128 (27) possible codes

Answer 12

ASCII

Question 13

ASCII stands for

Answer 13

American Standard code for Information Interchange

Question 14

Most widely used alphanumeric code

Answer 14

ASCII

Question 15

This is developed to support Indian languages on computer

Answer 15

ISCII

Question 16

ISCII stands for:

Answer 16

Indian Script Code for Information Interchange

Question 17

This is mostly used by government departments

Answer 17

ISCII

Question 18

International coding system designed to be used with different language scripts

Answer 18

Unicode

Question 19

Encompasses all physical aspects of computer systems.

Answer 19

COMPUTER ORGANIZATION

Question 20

Logical aspects of system implementation as seen by the programmer.
E.g., instruction sets, instruction formats, data types, addressing
modes.

Answer 20

COMPUTER ARCHITECTURE

Question 21

3 computer components

Answer 21

1. processor
2. Memory
3. Mechanism

Question 22

its function is to interpret and execute programs

Answer 22

processor

Question 23

its function is to store both data and programs

Answer 23

memory

Question 24

this is for transferring data to and from the outside world

Answer 24

Mechanism

Question 25

devices that input data into the computer such as a keyboard, mouse, scanner, and digital camera, microphone, QR code reader, RFID reader

Answer 25

Input devices

Question 26

the memory unit consists of:

Answer 26

1. RAM 2. ROM 3. CACHE MEMORY 4. SECONDARY STORAGE

Question 27

where programs are stored during execution -Main memory/primary storage

Answer 27

RAM (Random Access Memory)

Question 28

contains special instructions for the computer to operate

Answer 28

ROM (Read Only Memory)

Question 29

increases the speed of the processor by recording and anticipating instructions

Answer 29

Cache memory

Question 30

storage provided by peripheral devices, used when large amounts of data have to be stored on a more permanent basis

Answer 30

Secondary storage

Question 31

processing unit consists of

Answer 31

1. central processing unit 2. Arithmetic-logic unit 3. control unit

Question 32

the brain of a computer, containing of all the circuitry needed to process - Composed of ALU and control unit (CU)

Answer 32

CPU

Question 33

where all arithmetic and logic operations and manipulation of numbers take place

Answer 33

ALU

Question 34

controls and coordinates the order of execution of program instructions

Answer 34

Control Unit

Question 35

The nerve center of a computer

Answer 35

Control Unit

Question 36

Used to communicate data from computers to the users.

Answer 36

Output Unit

Question 37

Processor speeds are measured in ____ or ____

Answer 37

MHz or GHz

Question 38

It is a unit of storage

Answer 38

Byte

Question 39

_____ is measured in MB

Answer 39

RAM (main memory)

Question 40

it is measured in GB for small systems, TB for large systems

Answer 40

Disk storage

Question 41

______on computer chips are measured in microns

Answer 41

Circuits

Question 42

the “brain of the system”, it executes program instructions

Answer 42

Microprocessor

Question 43

it determines the amount of data and size of programs you can store

Answer 43

Hard disk capacity

Question 44

it allow movement of data between a system and its external devices

Answer 44

Ports

Question 45

send data as a series of pulses along 1 or 2 data lines

Answer 45

Serial ports

Question 46

send data as single ports along at least 8 data lines

Answer 46

Parallel ports

Question 47

an intelligent serial interface that is self configuring (supports “plug and play”)

Answer 47

USB (Universal Serial Bus)

Question 48

What are the standard organizations related to computer components?

Answer 48

* Institute of Electrical and Electronic Engineers (IEEE) * International Telecommunications Union (ITU) * American National Standards Institute (ANSI) * British Standards Institution (BSI) * International Organization for Standardization (ISO)

Question 49

Established standards for computer components, data representation, and signaling protocols, among many other things

Answer 49

The Institute of Electrical and Electronic Engineers (IEEE)

Question 50

Concerns itself with the interoperability of telecommunications systems, including data communications and telephony

Answer 50

The International Telecommunications Union (ITU)

Question 51

influential in formulating standards for computer hardware and software, including their methods of manufacture

Answer 51

The International Organization for Standardization (ISO)