Computer Hardware and Software Questions and Answers

Q: Which of the following has the maximum data storage capacity ?

The largest capacity is the \(10^{8}\) Megabyte hard disk.Convert all four to bytes, using decimal prefixes (1 KB = \(10^{3}\) bytes, 1 MB = \(10^{6}\), 1 GB = \(10^{9}\), 1 TB = \(10^{12}\)):\[ \begin{aligned} 10^{10}\ \text{KB} &= 10^{13}\ \text{bytes} \\ 10^{8}\ \text{MB} &= 10^{14}\ \text{bytes} \\ 10^{4}\ \text{GB} &= 10^{13}\ \text{bytes} \\ 10\ \text{TB} &= 10^{13}\ \text{bytes} \end{aligned} \]Three of the disks hold 10 TB each, while \(10^{8}\) MB is 100 TB, ten times as much.

Q: Which of the following types of software do you recommend most to the secretariat staff of a school for preparing the school's annual report for printing purpose using various fonts, colours, formats and images ?

The most suitable software is a word processor.A word processor such as Microsoft Word or LibreOffice Writer creates formatted documents with different fonts, colours, styles, tables and images, laid out in pages ready for printing. An annual report is exactly such a document.A text editor such as Notepad handles plain text without fonts or images. A spreadsheet is for tables of numbers and calculations, and a browser is for viewing web pages.

Q: How many peripheral devices can be connected using USB port ?

A USB port can connect up to 127 peripheral devices.USB uses a 7-bit device address, which gives 27 = 128 addresses. Address 0 is reserved for a device that has just been connected and not yet configured, which leaves 127 addresses for devices, connected through a tree of hubs.12 is the full-speed data rate of USB 1.1 in Mbit/s, which is a common distractor, and 17 and 172 do not correspond to any USB limit.

Q: In which year the USB port was introduced?

USB was introduced in 1996.The Universal Serial Bus 1.0 specification was released in January 1996 by a group of companies including Intel, Microsoft, Compaq and IBM, to replace the many different serial, parallel and keyboard ports on personal computers with a single standard connector. USB 1.1 followed in 1998 and USB 2.0 in 2000.Development began around 1994, but the standard was not released in 1993 or 1997.

Q: When not in use, it is very important to keep 5¼ inch diskettes in _____.

Correct answer: Their protective sleevesA 5¼ inch diskette has an open media window, so the sleeve is what keeps dust and fingerprints off the recording surface.

Q: On the PC side, the printer port is a:

Correct answer: 25 pin female parallel connectorOn the PC the printer port is a 25-pin female parallel connector; the printer end of the cable is the 36-pin Centronics connector.

Q: The buffers statement is found in what file?

Correct answer: Config.sysBUFFERS is a device and memory setting read by DOS as it loads, so it belongs in CONFIG.SYS. AUTOEXEC.BAT runs afterwards, once the system is already configured.

Which of the following has the maximum data storage capacity ?

A.\(10^{10}\) Kilobyte Hard Disk
B.\(10^{8}\) Megabyte Hard Disk
C.\(10^{4}\) Gigabyte Hard Disk
D.10 Terabyte Hard Disk

Exam Year(s)

CBSE Assistant Secretary - 2024,

Answer: B

The largest capacity is the \(10^{8}\) Megabyte hard disk.

Convert all four to bytes, using decimal prefixes (1 KB = \(10^{3}\) bytes, 1 MB = \(10^{6}\), 1 GB = \(10^{9}\), 1 TB = \(10^{12}\)):

\[ \begin{aligned} 10^{10}\ \text{KB} &= 10^{13}\ \text{bytes} \\ 10^{8}\ \text{MB} &= 10^{14}\ \text{bytes} \\ 10^{4}\ \text{GB} &= 10^{13}\ \text{bytes} \\ 10\ \text{TB} &= 10^{13}\ \text{bytes} \end{aligned} \]

Three of the disks hold 10 TB each, while \(10^{8}\) MB is 100 TB, ten times as much.

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Which of the following types of software do you recommend most to the secretariat staff of a school for preparing the school's annual report for printing purpose using various fonts, colours, formats and images ?

A.Text editor
B.Spreadsheet
C.Word processor
D.Browser

Exam Year(s)

CBSE Assistant Secretary - 2024,

Answer: C

The most suitable software is a word processor.

A word processor such as Microsoft Word or LibreOffice Writer creates formatted documents with different fonts, colours, styles, tables and images, laid out in pages ready for printing. An annual report is exactly such a document.

A text editor such as Notepad handles plain text without fonts or images. A spreadsheet is for tables of numbers and calculations, and a browser is for viewing web pages.

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Which of the following is NOT an internal hardware component of a desktop computer?

A.CPU
B.Heat sink
C.Operating system
D.Network interface card

Exam Year(s)

DSSSB JE - 2023,

Answer: C

The operating system is software, not an internal hardware component. The CPU (the processor), the heat sink (which carries heat from the processor to the air) and the network interface card (the board that connects the computer to a network) are all physical parts that sit inside the cabinet of a desktop computer. The operating system, such as Windows or Linux, is a program stored on the drive and loaded into memory.

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Which of the following is an accounting application software?

A.Tally
B.MS-Word
C.OpenOffice
D.MS-Access

Exam Year(s)

DSSSB TGT - 2023,

Answer: A

Tally is accounting application software, used to keep accounts, vouchers, inventory and GST records. MS-Word is a word processor, OpenOffice is an office suite and MS-Access is a database management system, so these three are not accounting software. Tally, which is widely used by Indian businesses, can record vouchers, produce balance sheets and handle GST returns.

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How many peripheral devices can be connected using USB port ?

A.12
B.17
C.127
D.172

Exam Year(s)

MPPSC Forest Service - 2022,

Answer: C

A USB port can connect up to 127 peripheral devices.

USB uses a 7-bit device address, which gives 2⁷ = 128 addresses. Address 0 is reserved for a device that has just been connected and not yet configured, which leaves 127 addresses for devices, connected through a tree of hubs.

12 is the full-speed data rate of USB 1.1 in Mbit/s, which is a common distractor, and 17 and 172 do not correspond to any USB limit.

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In which year the USB port was introduced?

A.1997
B.1993
C.1996
D.None of the above

Exam Year(s)

MPPSC Forest Service - 2023,

Answer: C

USB was introduced in 1996.

The Universal Serial Bus 1.0 specification was released in January 1996 by a group of companies including Intel, Microsoft, Compaq and IBM, to replace the many different serial, parallel and keyboard ports on personal computers with a single standard connector. USB 1.1 followed in 1998 and USB 2.0 in 2000.

Development began around 1994, but the standard was not released in 1993 or 1997.

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One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:

A.The device that sends the monitor signals telling it what to display
B.The area that regulates all of the system power usage
C.The area where all the of the Basic input/output routines are stored
D.The area where all of the processing takes place

Answer: D

Correct answer: The area where all of the processing takes place

The CPU fetches and executes the instructions, which is what processing means. Driving the monitor is the video card's work and regulating power the supply's.

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When not in use, it is very important to keep 5¼ inch diskettes in _____.

A.Their protective sleeves
B.In a plastic bag
C.On a shelf in an upright position
D.In the floppy drive

Answer: A

Correct answer: Their protective sleeves

A 5¼ inch diskette has an open media window, so the sleeve is what keeps dust and fingerprints off the recording surface.

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On the PC side, the printer port is a:

A.25 pin female serial connector
B.15 pin female parallel connector
C.25 pin male serial connector
D.25 pin female parallel connector

Answer: D

Correct answer: 25 pin female parallel connector

On the PC the printer port is a 25-pin female parallel connector; the printer end of the cable is the 36-pin Centronics connector.

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10.

The buffers statement is found in what file?

A.Config.sys
B.Autoexec.ncf
C.Autoexec.bat
D.Neb.cfg

Answer: A

Correct answer: Config.sys

BUFFERS is a device and memory setting read by DOS as it loads, so it belongs in CONFIG.SYS. AUTOEXEC.BAT runs afterwards, once the system is already configured.

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