৫৪০১
Bluetooth operations use-
উত্তর
Radio technology
সমাধান
Bluetooth is a radio technology.
Bluetooth operates at frequencies between 2.402 and 2.480 GHz, or 2.400 and 2.4835 GHz including guard bands 2 MHz wide at the bottom end and 3.5 MHz wide at the top.
This is in the globally unlicensed (but not unregulated) industrial, scientific and medical (ISM) 2.4 GHz short - range radio frequency band.
৫৪০২
In which of the following computers,can the UNIX operating sytem be used?
উত্তর
Desktop computer
সমাধান
UNIX is generally used by desktop computers, laptop computers and super computers. UNIX is a multiuser operating system. it has traditionally been applied to family of multitasking, multiuser operating system that was derived originally from AT&T UNIX operating system in 1970's.
৫৪০৩
Which of the following objects is an example of computer storage device?
উত্তর
All of these
সমাধান
Examples are Hard drives, USB flash drives, DC-RW, and DVD-RAM drives. ...
৫৪০৪
’Bluetooth' নিচের কোন প্রযুক্তি ব্যবহার করে?
উত্তর
Radio Frequency
সমাধান
Bluetooth technology uses short-range wireless communication technology that uses radio waves in the frequency range of 2.4 GHz to 2.485 GHz.
৫৪০৫
Which of the following is not an example of Operating System?
উত্তর
Microsoft Office XP
সমাধান
Microsoft Windows is an operating system, developed by Microsoft.
Mac OS is an operating system, developed by Apple.
Linux is a free and open - source software.
৫৪০৬
Writing, editing, sorting and printing a document using computer software are known as-
উত্তর
word processing
সমাধান
Word Processing is using a computer to create, edit, and print documents. Of all computer applications, word processing is the most commonly used.
৫৪০৭
In Ms Word Pressing CTRL+E will-
উত্তর
make center alignment
সমাধান
Center text, if you want to quickly center your text, you don't have to use the alignment buttons at the top of your screen. Hit Ctrl + E and your text will be instantly centered
৫৪০৮
When you start a computer, then which component works first?
উত্তর
BIOS
সমাধান
BIOS (basic input/output system) is the program a computer's microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.
৫৪০৯
which program is used to type written document?
উত্তর
Word processor
সমাধান
C + + is used to write C program code, Ms outlook express is used for e - mail writing; Acrobat Reader is used to view PDF files.
৫৪১০
In general "My computer" is located at -
উত্তর
C drive
সমাধান
By default windows chooses C Drive as main and “My computer” is there.