In a virtual world or game, what is an 'avatar'?
AnswerA user's on-screen character
An avatar represents a user in a virtual space.
Tech · Facts & stats
Virtual facts & stats
7 fact-checked facts about virtual machines, virtual meetings and virtual worlds, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is a virtual meeting?
AnswerA meeting held over video or audio online
Virtual meetings connect people online instead of in a room.
Going deeper
What software layer creates and runs virtual machines?
AnswerHypervisor
A hypervisor allocates hardware resources to virtual machines.
The fixed-size blocks that virtual memory is divided into are called what?
AnswerPages
Virtual memory is managed in fixed-size pages.
What is a 'virtual tour'?
AnswerAn online walkthrough of a real place
Virtual tours use photos, video or 3D scans to explore places online.
Expert level
A 'Type 1' hypervisor runs where?
AnswerDirectly on the hardware (bare metal)
Type 1 hypervisors run on bare metal; Type 2 run on a host OS.
When a program accesses a page not currently in RAM, what event occurs?
AnswerPage fault
A page fault tells the OS to load the missing page into memory.
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