Computer Hardware and Software Questions and Answers

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.