Solve the following number in hexadecimal  101110₂

2E₁₆

722₁₆

12C₁₆

622₁₆

17A₁₆

_NB:

the operation of  "&"in  0010₂ & 1110₂  is called "string concatenation"

------are set of rules and conventions for sending information over network

ISP

Protocols

Internet protocols

TCP

ARP

Which of the network usually transfer data in lower band width?

WAN

LAN

Intranet

ARP

Cyber net

--------is (are) English-like programming language(s) for the purpose or access information in database.

Structural Query language (SQL)

science orientation language

natural language

a and c

a and b

What advantage does machine language has over HLL?

Speed of execution

Machine language is In zero and ones while HILL is the

Speed of accessing

Machine language is the mother tongue of computer

None of the above

BASIC stands for Beginners All Purpose Symbolic Instruction Code. The language was developed in the year

1964

1956

1950

1960

1954

The following are typical examples of mufti-purpose language except

BASIC

FORTRAN

C++

PASCAL

PL/2

The difference between a measured quantity and true value called

Mistake

Constant error

Systematic error

Random error

Error

Why is machine language so important to computer

the electronic nature of computer operates on switch which is on and off which can be represented in �0� and �1"

None of the above

it is the �mother tongue� of computer

it is faster in speed of execution

it does not need a translation

Which of the following is not an output device in computer?

joystick

mouthpiece

monitor

printer

speakers

The algorithm representation that is structured in a way dose to real program is

formula

English-like

flowchart

decision table

pseudo code

A super computer should be able to perform many hundreds of MFLOPS. What is the meaning of MFLOPS?

Millions of Floating Point Option Per Second

Millions of Floating Power Operations Per Second

Millions of Floating Point Operations Per Second

Millions of Floating Power Option Per second

a & b

COBOL is an abbreviated term for a programming language. what is the full meaning of COBOL?

Command Base Oriented Language

Common Business Oriented Language

Computer Base Oriented Language

Common Beginners Oriented Language

Core Beginners Oriented Language

Nigeria wants to build a nuclear station, which operating system type will you suggest for the system to be used for that?

batch OS

time shared OS

real time OS

simple batch

all of the above

The following among others are advantages of networking except

sharing of files

electronic mails

cost effectiveness for organization

multiple backup

none of the above

An electronic machine that can receive instruction, remember the instruction and carryout the instruction is called

calculator.

radio

computer system

electronic machine

The following are type of computer except?

digital computer

analog computer

hybrid computer

Microprocessor processor

The part of the CPU that performs all mathematical computation is referred to as

AW

ALU

CISCO

Register

Comment documentation in a program is?

executable

non-executable

instructional

header files

A programmer can be referred to as

an interpreter

an operator

a program writer

a program reader

The medium of communication between a programmer and a computer is known as

computer program

programming language

programming code

flow chat

The software built into the computer chip when it is made Is known as

firmware

system software

application software

shareware

Which of the following software is a system software?

word processor

operating system

database management system

Sharewares

Which generation or computer was operated using an electronic valve?

First generation

Second generation

Third generation

Fourth generation

Which generation or computer associated with Artificial Intelligent (AI) ?

Zero generation

First generation

Second generation

Third generation

Forth generation

The number of bit a computer can process at a time in parallel is known as

word weight

double word

word length

double length

Represent 12C in decimal 

160

200

300

24

NB: 

 (this is the fastest approach)

 12C = 10(16 + 2 + 12) = 300 

OR use the simple, general but long approach:

12C = (16² x 1) + (16¹ x 2) + 12

= 256 + 32 + 12 = 300

In problems solving, the design stage outline

transformation of step

understanding of the problem

rules of solving the problem

transformation of the rules

Which of these variable name to store data for program in visual is consider as invalid?

my_name

myname

my-name

namer

The Key declaration term in VB is?

Float

Dim

Let

Set

Which of these data types will be ideal for storing the height of students?

integer

bool

short

float

The read only memory (ROM) which allows erasing with an ultraviolet light is called

EPROM

EAPROM

EAPOM

EROM

An electronic independent memory is often referred to as

volatile

non-volatile

disposable

erasable

Which computer generation is characterized by the use of integrated circuits technology in the design of its component?

First generation

. Second generation

. Third generation

Fourth generation

The semi conductor � based memory that can be read and written by the micro processor or other hardware devices is known as

random access memory

read only memory

read write memory

real all memory

In the control structure one program statement follows another in logical order

selection

sequence

repetition

logic

An algorithm must have which of the following?

unending loop

undefined sequence

maximum number of step

input symbol only

The electronic path through which data travels in a computer system Is known as

port

bus

gate

Circuit

A program which performs a particular task for the computer users is known as

system software

application software

shareware

firm ware

The physical component of computer system, including any peripheral equipment printers, modems are referred to as

computer hardware

computer system

computer component

computer firmware

The electronic path through which data travel in a computer system is known as

port

bus

gate

circuit

What is the result of the operation 23&12 in a visual programming?

35

2312

432

276

The result of the operation 10%3  is

3

1

7)

103%

NB:

so 10%3 = 1

The part of the computer responsible for program execution is known as

memory

input/output device

central processing unit

mother board

The result of the operation 15 \ 4 = ?

3

4

3.75

.75

NB: the backward slash "\" is used for integer division which takes only the whole number part of a division

Which of the following bus is used by the CPU to locate instruction In the main memory?

data bus

address bus

control bus

Chip bus

The term VDU is refers to as

visual data unit

visual display unit

video display unit

video data unit

Which of the following will run fastest on the computer?

program written in assembly language

program written in machine language

program written in high level an

program written In BASIC

The method of testing a program by hand is known as

desk check

hand running

dry running

hand checking

A ground approach to debugging is to

return to the program planning

start the debugging process again

return to the program design

return to the program coding

represent negative 3 (i.e -3) in one's compliment

11

01

10

00

NB:

To represent a negative number in ones compliment, convert the given number to base two and then invert the digits

e.g. 3 = 11₂. inverting digits means where you see 1 put zero and where you see zero put

therefore, 11 = 00

Computer generation has evolved through how many generations?

seven generation

four generation

five generation

nine generation

The register found in the CPU are used for the following

temporary storage of data

permanent storage of data

data processing

output information

Which of the following physical component of a computer system can a user interact with?

register

main memory

key board

CPU

Program which performs a particular task for a computer user is referred to

system software

application software

operating system software

firm ware

 A powerful multi-user computer capable of supporting many hundreds of users simultaneously is referred to as

work station

Macro computer

Mainframe computer

Mini computer

The following are output device except?

key board

monitor

speaker

printer

The process or initializing the computer system for a personal computer (PC) is known

switch on

boating

booting

turn on

Which of the following is used to design a program using English-like statement?

pseudo codes

program

flowchart

codes

Flowchart uses standard symbols called?

ASNI

ASCII

ANSI

BASIC

_____is a processing step of a program

design

module

charts

links

_____are the basis of computer programming

codes

programming languages

COBO

algorithm

-----are programming errors caused by not using control structure correctly?

syntax error

logic error

run-time error

real time error

The specialist aids that translate programs to make their coding compatible between different makes of computer

Emulators

Compilers

Simulators

Interpreter

Assembler