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Technology Questions and Answers

411.

Which function key is used to check spellings ?

Answer: D

F7 checks spelling.

It opens the spelling and grammar checker in Microsoft Word and the other Office applications.

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412.

On what date was the debut of the first IBM Personal Computer?

Answer: A

The first IBM Personal Computer was launched on 12 August 1981.

The IBM 5150 had a 4.77 MHz Intel 8088 and 16 KB of memory. Because IBM used off-the-shelf parts and published the specifications, other makers could build compatible machines, which is how the PC became a standard.

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413.

By pressing which key we can move to beginning of a page ?

Answer: A

The Home key moves to the beginning.

It goes to the start of the line, and Ctrl+Home to the start of the document. End does the reverse, and Page Up and Page Down move a screen at a time.

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414.

Which of the following is program group?

Answer: A

Accessories is a program group.

A program group is a folder in the Start menu holding related shortcuts - Accessories contains Notepad, Paint, Calculator and WordPad. Excel, Word and Paint are individual programs within such groups.

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Answer: B

A hot spot is a place served by public wireless access.

A Wi-Fi access point connected to the internet lets anyone within range connect, typically in a café, airport or hotel. Traffic on an open hotspot is visible to others nearby unless the site itself is encrypted.

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Answer: D

EXIF stands for Exchangeable Image File Format.

It is the metadata a camera embeds in a photograph - date, exposure, aperture, focal length, camera model and often GPS coordinates. That location data is why photographs are stripped of EXIF before publication.

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418.

The device used to convert alternating current into direct current is called a ________.

Answer: C

Correct answer: rectifier

A rectifier passes current in one direction only, typically using diodes, converting AC into DC. An inverter performs the reverse conversion, and a transformer changes voltage while leaving the current alternating.

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420.

The IBM PC-XT was the first to include a hard drive. What was the capacity of this disk?

Answer: C

The IBM PC-XT's hard disk held 10 MB.

It was introduced in 1983 and was the first IBM PC with a hard drive fitted as standard. The 20 MB version came with the PC-AT two years later.

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