WorksheetsICT EXAM
Total questions: 120
Worksheet time: 3600secs
The first electro-mechanical computer "automatically performing of arithmetical and logical operations"
Mark I
Dzheko
Palo I
Werk IB
Which of the following is not an input device of a computer?
Optical scanners
OCR
Printer
Voice
Which of the following is not an output device of a computer?
Printer
Keyboard
VDU
CRT screen
A computer-controlled device for training exercises that duplicates the work environment is a:
Simulator
Duplicator
Trainer
COM device
A 32 bit microprocessor has the word length equal to
1 bytes
3 bytes
4 bytes
2 bytes
Group of instructions that directs a computer is called
Memory
Program
Logic
Storage
The term gigabyte refers to
1024 Gigabytes
1024 Megabytes
1024 Kilobytes
1024 Bytes
The equipment with which the computer talks to its users is called a
Word processor
Peripheral
Software
Diskette
The first electronics digital computer "automatically performing of arithmetical and logical operations"
IBL
ENIAC
Mark I
Palo I
Conversion of a hexadecimal number 5BC to binary number is
1000000001
101
10111011100
101010100111
The barcode which is used on all types of items, is read by a scanning device directly into the computer. What is the name of this scanning device?
Laser scanner
Wand
OCR
MICR
The most common input device used today is
Motherboard
Scanner
Keyboard
Mouse
Each model of a computer has a unique
High level language
Assembly language
None
Machine language
A collection of eight bits is called
Terabyte
Byte
Kilobyte
Megabyte
First generation computers are characterized by
Minicomputers
Vacuum tubes and magnetic drum
Magnetic tape and transistors
All of the above
Which part interprets program instructions and initiate control operations?
Input
Storage unit
Control unit
Logic unit
What is the number of bit patterns provided by a 7-bit code?
126
128
130
125
The third generation of computers covers the period?
1967-1968
1950-1955
1965-1970
1955-1965
Which of the following input/output devices is not associated with personal computers?
Color monitors
Punched cards
Mice
Optical scanners
The brain of any computer system is
ROM
CPU
Hardwware
Peripherals
The tracks on a disk which can be accessed without repositioning the R/W heads is?
All of this
Cluster
Surface
Cylinder
Which of the following is the 1's complement of 10?
11
01
10
001
The binary system uses powers of?
4
2
1
3
A computer program that converts assembly language to machine language is?
Interpreter
Compiler
Assembler
Comparator
The time required for the fetching and execution of one simple machine instruction is
Delay time
Real time
Seek time
CPU cycle
What difference does the 5th generation computer have from other generation computers?
Technological providing
Technological equipment
Technological advancement
Technological world
Binary numbers needs more places for counting because
Binary base is enormous
Binary base is big
Binary base is small
Binary base is empty
Which company is the biggest player in the microprocessor industry?
Motorola
AMD
IBM
Intel
Third generation computers?
Were the first to use neutral network
All of the above
None of these
Used transistors instead of vacuum tubes
Which device of computer operation dispenses with the use of the keyboard?
Mouse
Keyboard
Webcam
Touch
A general purpose single-user microcomputer designed to be operated by one person at a time is
KIPS
M
PC
Special-purpose computer
ASCII stands for
Abacus Since Cours in Information Include
Unified National Test
American Standard Code for Information Interchange
Eurasian National University
Which output device is used for translating information from a computer into pictorial form on paper?
Mouse
Touch panel
Plotter
Card punch
Which of the following is still useful for adding numbers?
Abacus
ENIAC
None of this
EDSAC
The list of coded instructions is called
Computer program
Algorithm
Flowchart
Utiility programs
The first mechanical calculating machine was made by
Jack Grealish
Erling Haaland
Blaise Pascal
Harry Kane
Multiplication of 111(2) by 101(2) is
010101
100011
111000
101010
Conversion of an octal number 20 to its binary number is
100
10
10000
1000
Which of the following can be output by a computer?
Graphics
All of these
Voice
Text
Which computer has been designed to be as compact as possible?
Small computer
Micro computer
Macro computer
Computer with high process
Which of the following memories must be refreshed many times per second?
EPROM
Dynamic RAM
Static RAM
ROM
The OR, XOR & AND functions can be performed by _____ of the computer in a CPU
ALU
CU
Memory
Register
The computer industry uses prefixes of Greek origin to measure large amounts of data. Which term describes 1024 bytes
Terabyte
Megabyte
Gigabyte
Kilobyte
Who is called the "grandfather" of the computer?
Jack Grealish
Erling Haaland
Charles Babbage
Nicolas Otamendi
A central computer surrounded by one or more satellite computers is called a
Star network
Bus network
Ring network
Hierarchial network
A notation used to express clearly on algorithm is known as
Assembly language
Machine language
Algorithmic language
High level language
Which printer uses a combination of laser-beam & electro photographic techniques
Daisy wheel
Dot-Matrix
Line printer
Laser printers
The unit of a computer system that executes program, communicates with and often controls the operation of other subsystems of the computer is known as
Peripheral unit
CPU
Control Unit
I/O unit
Who is the creator of the PASCAL language?
Andreas Iniesta
Dusan Vlahovic
Nicklaus Wirth
Charles Babbage
Continuous line drawing is produced using
Plotters
Thermal devices
Chain printers
Daisy wheel printers
The arranging of data in a logical sequence is called:
Summarizing
Classifying
Sorting
Reproducing
Conversion of an octal number 256 to binary number is
1110001
10101110
100111
1011101
The transistorized computer circuits were introduced in the
Third generation
Second generation
First generation
All of the above
A memory bus is mainly used for communication between
Input and output devices
I/O devices and memory
Processor and memory
Processor and I/O devices
A hard disk is divided into tracks which are further subdivided into:
Cluster
Sectors
Block
Cylinder
What is the highest binary number that can be referred to on a three position jumper block?
4
3
1
2
A memory that does not change its contents without external causes is known as
EEPROM
RAM
Dynamic memory
Static memory
The organization and interconnection of the various components of a computer system is
Graphics
Networks
Architecture
Designing
A modern electronic computer is a machine that is meant for
Input storage, manipulation of outputting of data
Doing quick mathematical calculations
Electronic data processing
Performing repetitive task accurately
A billionth of a second is defined as a:
Millisecond
Microsecond
Nanosecond
Picoseconds
Which of the following is not currently a topic in computer science?
Thermodynamics
Multiprocessing
Speech recognition
All of the above
The two kinds of main Memory are:
Primary & Secondary
Random & Sequential
RAM & ROM
All of the above
The ALU of a computer normally contains a number of high speed storage elements called
Semiconductor memory
Magnetic disk
Hard disk
Registers
Conversion of binary number 1010101000010111 to hexadecimal number is
AA14
AA15
AA17
AA16
Who is credited with the idea of using punch cards to control patterns in a weaving machine?
Pascal
Hollerith
Jacquard
Babbage
The central processor of a modern digital computer consists of
none
primary memory
control unit
control unit and primary memory
A temporary storage area, attached to the CPU, for I/O operations is a:
Buffer
Chip
Register
Core
The person contributing the idea of the stored program was
Charles Babbage
John von Neumann
Howard Aiken
Basic Pascal
A computer with CPU speed around 100 million instructions per second & with the word length of around 64 bits is known as
Super computer
Macro computer
Micro computer
Mini computer
Which of the following is not a part of the CPU
None
Registers
Control Unit
Storage Unit
The binary equivalent of the Octal number 13.54 is
none
1000.111
1101.111
1011.1011
Transistorized computer circuits were introduced in the
Second generation
First generation
Third generation
All of the above
Those microcomputers which have the same operating characteristics as the IBM microcomputers are called IBM
Duplicates
Clones
Copies
None of the above
The invention of the slide rule is attributed to
Oughtred
Babbage
Pascal
Napier
The desirable characteristic(s) of a memory system is (are)
Speed and reliability
Low power consumption
Durability and compactness
All of the above
Different components on the motherboard of a PC processor unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
Connectors
Buses
Conductors
None
Which of the following typically uses a keyboard for input?
All of the above
Desktop terminal
Executive workstation
Financial transuction terminal
The microelectronics is the technology of
Micro waves
Micro computers
Chips
None
Conversion of hexadecimal number 1D7F to a decimal number is
7551
7555
7447
7525
In the language of the computer profession, one thousand position of main storage is represented with the letter
B
K
A
R
The monitor of a computer is connected to it by a
Bus
Cable
Wire
Line driver
A single bus structure is primarily found in
Mini-and microcomputers
Main frames
Super computers
None
Everything computer does is controlled by its
CPU
RAM
ROM
Storage device
The 0 and 1 in the binary numbering system are called binary digits or
Kilobytes
Bytes
Bits
Decimal Bytes
Floppy disks which are made from flexible plastic material are also called?
None
Templates
Hard disks
Diskettes
All calculations are performed and all comparisons are made in _____ unit
Central processing unit
Control unit
Arithmetic-logic unit
None
The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in Electronic Data Processing system is called
ASCII
EBCDIC
BCD
All of the above
The computer translates the condition of each switch to a number. What number is represented by the OFF state?
0
1
-1
3
How many bits can be stored in the 8K RAM?
8890
8092
8192
8291
Which of the following is a part of the Central Processing Unit?
Arithmetic Logic Unit
Mouse
Keyboard
Printer
The input unit of a computer
retrieves data from CPU
feeds data to the CPU or memory
Directs all other units
All of the above
What is the name of the computer terminal which gives paper printout
Display screen
Soft copy terminal
Plotter
Hard copy terminal
In the IBM PC-AT, what do the words AT stand for?
Additional terminals
Advance technology
Applied technology
None
The binary equivalent of the Hexadecimal number 7BD is
111111100
111000000
11110111101
100011011001
Which of the following isn't used in the storage phase of a computer-based information system?
Keyboard
Magnetic
Diskette
Hard disk
While buying a PC system, you should first
Shop for application programs
Identify your hardware components
Call for tenders
Define your computing needs
Which of the following is true?
Fields are composed of bytes
Files are composed of records
Fields are composed of characters
All of the above
A modern digital computer has
Large memory
Extremely high speed
Almost unlimited accuracy
All of the above
The computer code for the interchange of information between terminals is
EBCDIC
ASCII
BCD
All of the above
To produce high-quality graphics (hardcopy) in colour, you would want to use a(n)
Ink-jet printer
RGB Monitor
Plotter
Laser printer
The language that the computer can understand and execute is called
System program
Machine language
Application software
All of the above
The basic components of a modern digital computer are:
Input device
Output device
Central processor
All of the above
A beam of light used to record and retrieve data on optical disks is known as
Laser
Coloured light
Polarized light
Unpolarized light
The computer translates the condition of each switch to a number. What number is represented by the ON state?
-1
1
0
5
A generalized software package produced to meet the bugs of a variety of data processing users is known as
Operating system
Application package
System software
Utility programs
Programs designed to perform specific tasks is called known as
System software
Application software
Application package
Operating system
A software package to perform calculations on data arranged in an array is
System software
Utility programs
Electronic spread sheet
Application programs
What is the alternative name for a diskette?
Floppy disk
Flexible disk
Hard disk
Winchester disk
Which of the following is NOT a function of the operating system?
Provides security
Control input/output operations
Perform calculation
Provide a friendly interface
Which option describes malicious code running on user devices?
Virus, worm, or Trojan horse
Firewall
Zero-day or Zero-hour
Virtual Private Network (VPN)
A system of hardware and / software that protects a computer or a network from intruders.
Virus
Firewall
Spam
ISP
Google Android is best classified as one of the fastest growing of these
desktop operating systems
mobile operating systems
network operating systems
stand
alone operating systems
Which of the following operating system does not implement multitasking?
Windows 98
MS DOS
Windows XP
Windows NT
Linux is based on which other operating system?
UNIX
MAC OS
Windows
All of the above
Which is built directly on the hardware?
Operating System
Application Software
Computer Environment
Database System
Mechanical device: Which are hand-operated
Abacus (Slide rule)
windows
Fourth Generation of Computers
1971-1981
1970-1975
1960-1980
1980-1981
The term FLOPS means
Floating Point Operation Per Second
s
Ethernet uses
Star topology
Bus topology
Ring topology
Tree topology
A computer has no more sense than a light
Bulb
Pen
Switch
Pad
