WorksheetsTACN
Total questions: 100
Worksheet time: 50mins
The first ………. computer which was as big as a house was built in the 1940.
digital
analogue
portable
personal
There are millions of …………. in a today’s chip.
pixel
applications
transistors
pits
Apple and IBM are the first two companies that produced ………………
mainframes
servers
Portable computers
Personal computers
How many …… are there in a byte?
zeros
bits
pits
digits
The most powerful type of computer is a ……….
mainframe
laptop
supercomputer
PDA
Computers can be used to ……. products and check you out at the cash registers in shops
keep track of (theo dõi)
store
calculate
send off
………. is the physical part of a computer system including any peripheral equipment such as printers, modems and mouse devices
software
a storage device
Hardware
application
A scanner is ……. that reads images and converts them into electronic codes which can be understood by a computer
software
a peripheral
(=external devices)
a storage device
an output device
At the back of a computer there are pots into which we can plug …….( e.g a scanner, a modem, etc)
internal device
internal devices
external devices
external device
What is the main difference between a mainframe and a super computer?
Super computer is much larger than mainframe computers
Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
are much smaller than mainframe computers
Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible
UNIVAC stands for………
Universal Automatic Computer
Universal Array Computer
Unique Automatic Computer
Unvalued Automatic Computer
The main function of ………. is to perform mathematical calculations and comparisons
the register
the bus
the ALU
the CPU
A …………. Is a common input device for use with graphical user interface.
scanner
light pen
keyboard
mouse
In memory, ………. are grouped together so they can represent large bits.
bit
numbers
bits
number
The CPU consists of electronic circuits that interpret and execute program instructions, as well as communicate with the input, output, and …………….
storage devices
storage device
storing devices
store device
What is the best definition of “supercomputer”?
A physical or software device connecting and facilitating a network with a printer.
A small laptop with less powerful components meant for surfing the web, reading email, and other basic tasks.
Refers to only the most powerful class of computer, typically designed to perform specialized tasks such as weather prediction, governmental financial calculations, or space research
A computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player.
What is the best definition of “convergence”? (sự hội tụ)
The evolution of devices towards common functionality
A physical or software device connecting and facilitating a network with a printer
A computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player.
All the above
What is the best definition of “router”? (bộ định tuyến)
A portable computer shaped in the form of a notebook and capable of advanced handwriting recognition via use of a stylus or on-screen keyboard.
A specialized computer which connects two networks
A computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player.
Refers to only the most powerful class of computer, typically designed to perform specialized tasks such as weather prediction, governmental financial calculations, or space research.
What is the best definition of “embedded system”? (hệ nhúng)
A computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player.
Refers to only the most powerful class of computer, typically designed to perform specialized tasks such as weather predictions, governmental financial calculations, or space research.
A computer designed for use by one person at a time
A type of computer intended primarily for central distribution of data to other computers on the same network.
What is the best definition of “Caps lock key”?
a computer key which changes the meaning of another key
a key which jumps the cursor a preset amount of distance towards the top of a document
a key which when pressed will toggle characters in upper or lower case
a key which is used to move the cursor to the end of the line
What is the best definition of “server”? (máy chủ)
A computer designed for use by one person at a time
The evolution of devices towards common functionality
A type of computer intended primarily for central distribution of data to other computers on the same network
A physical or software device connecting and facilitating a network with a printer
what is the best definition of “tab key”?
this key helps the user to changes the meaning of another key
a computer key which changes the meaning of another key
this key servers a variety of uses, most notably in Unix systems to mark a home folder
a key that when pressed, moves the insertion point to the next preset market
What is the best definition of “fingerprint reader”?
a device which forms a digitized image of a human finger print for the purpose of biometric authentication
a device used to press the right-side mouse button
a hardware device plugged into a computer’s sound card optimized for voice commands or other audio recording
a hardware device for entertainment
What is the best definition of “Del” or “delete key”?
a key that, when pressed, moves the insertion point to the next preset maker
a key which when pressed will toggle characters in upper or lower case
a key which moves the cursor one space to the right deleting any character which might be there
a key which is used to move the cursor to the end of the line
What is the best definition of “PDA” or “personal digital assistant”? (máy trợ giúp cá nhân)
A type of computer intended primarily for central distribution of data to other computers on the same network
A handheld computer about the size of wallet used as an organizer, web browser, game machine, mobile phone, or message recorder, also known as a hand-held computer
Refers to only the most powerful class of computer, typically designed to perform specialized tasks such as weather prediction, governmental financial calculations
A computer designed for use by one person at a time
What is the best definition of “tablet PC”?
A computer designed for use by one person at a time
A type of computer intended primary for central distribution of data to other computers on the same network
Refers to only the most powerful class of computer, typically designed to perform specialized tasks such as weather prediction, governmental financial calculations, or space research
A portable computer shaped in the form of a notebook and capable of advanced handwriting recognition via use of a stylus or on-screen keyboard
What is the best definition of “workstation”? (máy trạm)
A computer designed for use by one person at a time
A high quality computer, typically with lots of RAM, plenty of CPU power, and a high quality video card
A portable computer with a built-in screen, integrated keyboard, and battery power, also called a “notebook”
A portable computer shaped in the form of a notebook and capable of advanced handwriting recognition via use of a stylus or on-screen keyboard
What is the best definition of “print server”?
An input device a COM port where only 1 bit of data is transferred at a time
The main printed circuit board in a computer that carries the system buses. It is equipped with sockets to which all processors, memory modules, plug-in cards, daughterboards, or peripheral devices are connected; also known as a “mainboard”
A collection of integrated circuits designed to help the motherboard perform certain tasks such as control components
An input device used to transfer images into the computer
What is the best definition of “PC” or “personal computer”?
A physical or software device connecting and facilitating a network with a printer
A computer designed for use by one person at a time
A computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player.
All the above
Everything computer does is controlled by its…?
RAM
ROM
CPU
Storage devices
Processors of all computers, whether micro, mini or mainframe must have …………
ALU
Primary storage (RAM, ROM)
Control Unit
All of the above
The CPU clock speed is normally expressed in ……. (tốc độ vi xử lý)
Ticks per second
Megahertz
500MHz
Bits per clock tick
The brain of any computer system is……..
ALU
Memory
CPU
Control Unit
Which kind of hardware is used the most in the input phase of a computer based information system?
Keyboard
Printer
Hard disk
Monitor
……… is a common output device used for printing the output of a computer on paper
A scanner
A printer
A keyboard
A mouse
A tablet PC looks like a book with an LCD screen …….. you can write using a special digital pen
For which
At which
By which
On which
The computer stores its program and data in its………
ALU
Control Unit
Memory
Cache memory
Which can read data and convert them to a form that a computer can use?
Output device
Storage
Control
Logic
To turn on the computer, ……….. the “Start” button
switch
touch
press
turn
Control Unit of a digital computer is often called the ………
Lock
Nerve Centre
ICs
All of the above
The control unit of a processor ………….. the flow of information between the arithmetic unit and the memory
Coordination
Coordinator
Coordinating
Coordinates
On the rear panels of the computer there are several ports ……… we can plug a wide range of peripherals
into which
for which
at which
which
…….. is a piece of equipment that provide a permanent storage (lữu trữ lâu dài) of both data and programs
Memory
RAM
A storage device
ROM
Information stored in Random Access Memory(RAM) is volatile (không ổn định). This means that it…….
is kept in memory even when the computer is powered off
is lost when the computer is switched off
is automatically saved to disk when the computer is switched
can burn if exposed to air
What is the best definition of “mouse pointer”?
A special icon (normally an arrow) that indicated the current location of the mouse on the desktop screen
To press the right-side mouse button
A hardware peripheral designed to “scan” products into an inventory tracking system
All the above
A pen shaped device which can sense light, and is sued to point at spots on a video screen
A handheld input device for computers with one or more buttons and a rounded body meant to be slid around on a pad or flat surface
An input device or mouse alternative using a sensitive rectangular surface and a stylus
A peripheral used primary to enter data into a computer
An input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen
What is the best definition of “speech recognition”? (chức năng nhận dạng giọng nói)
The ability of a computer to convert spoken words from a user into usable data
A handheld input device for computers with one or more buttons and a rounded body meant to be slid around on a pad or flat surface
An input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen
A hardware device plugged into a computer’s sound card optimized for voice commands or other audio recording
Data is transferred from the internal memory to the arithmetic-logical unit along ……. known as buses
cables
roads
paths
channels
Which of the following is responsible for coordinating various operations using timing signals?
Arithmetic-logic Unit
Control Unit
Memory unit
Input/output unit
Which is a secondary memory device?(bộ nhớ thứ cấp: USB, Floppy disk, DVD) (bộ nhớ sơ cấp: RAM, ROM)
CPU
ALU
Floppy disk
Mouse
Computer memory consists of …………
RAM
ROM
PROM
All of the above
……… is volatile, so it doesn’t retain data when the power is off
RAM(Random Access Memory)
Flash memory
Memory
Temporary
What is the best definition of ‘right-click’?
An input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen
An input device or mouse alternative using a sensitive rectangular surface and a stylus
To press the right-side mouse button
An input device with a vertical rod mounted on a base used to control pointing devices or on-screen objects; normally with one or more buttons
……….. plastic disk on which individual bits are stored as pits burned onto the surface of the disk by high-powered lasers
Floppy disk
USB
Tape
CD ROM
Which device of computer operation dispenses with the use of the keyboard?
Mouse
Light pen
Joystick
Touch
……….. is chip of memory containing information which is present and permanent
RAM (Random Access Memory)
Flash Memory
ROM (Read only memory)
Cache
The device that can both feed data into and accept data from a computer is ……………..
ALU
Input-Output device
CPU
All of the above
……….. consists of instruction executed by a computer, as opposed to the physical device on which they run
Software
Hardware
Hard drive
Ports
Which memory is non-volatile and may be written only?
RAM
SRAM
EPROM
PROM
A memory that holds micro programs is …………
Core memory
ROM
RAM
Control memory
Which of the following is not primary storage devices?
Magnetic tape
Magnetic disk
Optical disk
None of above
The difference between memory and storage is that memory is ….. and storage is …….
temporary, permanent
permanent, temporary
slow, fast
All of above
The control unit of a processor …….. the flow of information between the arithmetic unit and the memory
coordination
coordinates
coordinating
coordinator
Apart from storing more data, hard drives transfer data at ……… rate than floppy disk
high
higher
low
lower
Device driver is a software component ……… a computer system to communicate with a device
that permits
that
permits
which permitting
CD-ROM is a …………
Semiconductor memory
Memory register
Magnetic memory
None of above
Which of the following is used as a primary storage device?
Magnetic drum
PROM
Floppy disk
All of these
Name or number used to identify a storage location devices?
A byte
A record
An address
All of above
RAM is used as a short memory because it is …………
volatile(mất)
has small capacity
is very expensive
is programmable
Which of the following memories needs refresh?
SRAM
ROM
DRAM
All of above)
A scanner is …….. that reads images and converts them into electronic codes which can be understood by a computer
software
a storage device
a peripheral
(thiết bị ngoại vi)
an output device
Linux is widely used because users ports its kernel to run ……… non-standard computers
in
with
Under
on
Which of the following is a secondary memory device?(thiết bị lưu trữ thứ cấp)
Keyboard
Disk
ALU
All of the above
What is the best definition of ‘tape drive’?
A legacy storage device which can read and write data slowly from a removable magnetic medium (normally 3.5” in diameter and holding 1.44MB of data)
A type of memory which is manufactured with permanent contents which cannot be modified
A type of storage using integrated circuits to store data; examples include RAM, ROM, and flash memory
A legacy storage device using magnetic tape; normally reading and writing data slower rate and used for backups
Which of the following memory is capable of operating at electronic speed?
Semiconductor memory
(bộ nhớ bán dẫn)
Magnetic disks
Magnetic drums
Magnetic tapes
What is the best definition of ‘SSD’ or ‘solid state drive’?
A type of storage using integrated circuits to store data; examples include RAM, ROM, and flash memory
A type of memory which is manufactured with permanent contents which cannot be modified
A newer data storage device meant to replace a traditional hard disk drive; these are characterized by non-moving parts and lower energy consumption
All the above
What is the best definition of ‘closed source’?
part of application
software in which the license stipulates that the user cannot see, edit, or manipulate the source code of a software program
part of operating system which tells the computer what to do
part of system of software development where anyone is free to take copy of the source code and extend, develop or fix bugs in it
What is the best definition of ‘semiconductor storage’?
A type of storage using integrated circuits to store data; examples include RAM, ROM and flash memory
A legacy using storage device using magnetic tape; normally reading and writing data slower rate and used for backups
This is either dedicated or shared memory set aside specifically for the graphics processor
All the above
What is the best definition of ‘ optical storage’?
A legacy storage device which can read and write data slowly form a removable magnetic medium (normally 3.5” in diameter and holding 1.44MB of data)
A non-volatile (permanent) memory type that is erasable via ultra-violet light and reprogrammable
A legacy using storage device using magnetic tape; normally reading and writing data slower rate and used for backups
A data storage technique using a pattern of markings on a disc that can be read by a laser, examples include CD-ROM, and DVD_ROM technology
Which of the ‘following statement is wrong?
An EPROM can be programmed, erased and reprogrammed by the user with an EPROM programming instrument
Magnetic tape is non volatile
Magnetic core and semiconductor memories are used as mass memory medium
RAM is a type of volatile memory
Memories in which any location can be reached in a fixed (and short) amount of time after specifying its address is called ……….
Sequential-access memory
Random-access memory
Secondary memory
Mass storage
What is the best definition of ‘floppy disk drive’?
A legacy storage device which can read and write data slowly form a removable magnetic medium (normally 3.5” in diameter and holding 1.44MB of data)
A data storage technique using a pattern of markings on a disc that can be read by a laser, examples include CD-ROM, and DVD_ROM technology
A type of memory which is manufactured with permanent contents which cannot be modified
A type of storage using integrated circuits to store data; examples include RAM, ROM, and flash memory
What is the best definition of ‘programmer’?
a person who uses a product or service on a computer
a person who is in charge of managing the server
a person who writes or modifies computer programs or applications
a person who is responsible for fixing the errors of the software
What is the best definition of ‘open source’?
part of operating system which tells the computer what to do
part of application software
part of system software where people are not free to use and extend it
part of a system of software development where anyone is free to take copy of the source code and extend, develop or fix bugs in it
What is the best definition of ‘operating system’?
The logic circuits used to control the cache process
A set of computer programs that controls the basic functions of a computer and provides communication between the application programs and the hardware
The core of and OS handing memory allocation, talking to hard ware devices, and making sue very thing keeps running
a program that remains memory all the time and manages the operating system
What is the best definition of ‘firmware’? (phần sụn/phần mềm cơ sở)
data programmed into a hardware device which provides its basic functionality; normally in the form of an EPROM
software in which the license stipulates that the user cannot see, edit , or manipulate the source code of a software program
something a computer program is “supposed” to do: these are often reasons to use a particular program or upgrade to a more recent version
part of a system of software development where anyone is free to take copy of the source code and extend, develop or fix bugs in it
What is the best definition of ‘ROM’ of ‘read-only memory’?
A type of storage using integrated circuits to store data; examples include RAM, ROM, and flash memory
A storage technique using patterns of magnetized particles on a metallic surface to store data; examples include hard disk drives, tape drives, floppy disk drives
A type of memory which is manufactured with permanent contents which cannot be modified
All the above
What is the best definition of ‘magnetic storage’? (lưu trữ từ tính
A storage technique using patterns of magnetized particles on a metallic surface to store data; examples include hard disk drives, tape drives, floppy disk drives
A type of storage using integrated circuits to store data; examples include RAM, ROM, and flash memory
A legacy using storage device using magnetic tape; normally reading and writing data slower rate and used for backups
A newer data storage device meant to replace a traditional hard disk drive; these are characterized by non-moving parts and lower energy consumption
DBMS stand for ……….
Database marketing system
Database management studies
Database management system
Database marketing strategies
Which of the following have the fastest access time?
Semiconductor memories
Magnetic Disks
Magnetic Tapes
Compact Disk
What is the best definition of ‘hard disk drive’? (ổ đĩa cứng)
A legacy using storage device using magnetic tape; normally reading and writing data slower rate and used for backups
A storage device using rotating magnetic platters to quickly store and retrieve digital data
A data storage technique using a pattern of markings on a disc that can be read by a laser, examples include CD-ROM, and DVD_ROM technology
All the ablove
What is the best definition of ‘RAM’ ‘random access memory’?
A type of memory which is manufactured with permanent contents which cannot be modified
A legacy storage device which can read and write data slowly form a removable magnetic medium (normally 3.5” in diameter and holding 1.44MB of data)
A type of computer memory known for being volatile (temporary) and fast
A data storage technique using a pattern of markings on a disc that can be read by a laser; examples include CD-ROM, and DVD_ROM technology
What is the best definition of ‘router’?
a portable computer shaped in the form of a notebook and capable of advanced handwriting recognition via use of a stylus or on-screen keyboard
a kind of computer which converts the analogue signals into the digital ones
a computer using a relatively slow and specialized processor and ROM chip, normally used to control a particular device such as a washing machine or an MP3 player
a specialized computer which connects two networks
What is the best definition of ‘virtual machine’?
software in which the license stipulates that the user cannot see, edit or manipulate the source code of a software program
A computer program that converts another program form a high-level language into machine language
a software program which mimics the performance of a hardware device in order to run securely or independent of the actual hardware
part of system of software development where anyone is free to take copy of the source code and extend, develop or fix bugs in it
What is the best definition of ‘multitasking’? (đa nhiệm)
The ability to execute more than one task at the same time
The ability to execute one task at one time
The ability to get access to the Internet
The ability to store data and programs
What is the best definition of ‘EPROM’ or ‘erasable programmable read only memory’?
A type of memory which is manufactured with permanent contents which cannot be modified
A non-volatile (permanent) memory type that is erasable via ultra-violet light and reprogrammable
This is either dedicated or shared memory set aside especially for the graphics processor
All the above
What is the best definition of ‘video memory’?
This is either dedicated or shared memory set aside especially for the graphics processor
A type of memory which is manufactured with permanent contents which cannot be modified
A legacy storage device which can read and write data slowly form a removable magnetic medium (normally 3.5” in diameter and holding 1.44MB of data)
A type of computer memory known for being volatile (temporary) and fast
What is the best definition of ‘application software’?
A catalogue of where each piece of data is stored and how to find it
All the programs which control the basic functions of a computer
A set of programs and files that control the hardware and software resources of a computer system
All the applications which are used for specific purposes
Most operating systems provide …….. to read and write data to files
with functions
function
functions
functions which
The kernel of Windows XP Home Edition and Windows XP Professional operating systems are ………….
Unique
same
not same
identical (giống nhau)
