Doubly linked chain
When a linked chain contains nodes that reference both the next node and the previous node, it is called a doubly linked chain. This type of chain is often used in data structures because it provides a way to easily traverse the data in both directions. However, because each node must reference both the next node and the previous node, doubly linked chains require more memory than singly linked chains.
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Answer:
a submenu
Explanation:
a menu inside a menu is called a submenu or recursive menu
Tabs are rectangular boxes found on top of your we browser. At the right of each of those tabs, you see a symbol written in 'x' (as shown in the picture). This is the one you should click to close an existing tab.
Answer:
RAM
ROM
PROCESSOR
MOTHER BOARD
HARD DISK
Explanation:
Random access memory or RAM store data temporary
Read only memory or ROM permanently store data and have a programming needed to start (PCs) or other electronic device
CPU or processor refers to brain of computer
Mother board the main internal hardware component of system unit
Hard disk is electro mechanical data storage