![](https://childrensheavenhighschool.com/wp-content/uploads/2020/04/IMG-20200417-WA0005-723x1024.jpg)
*Photo synthesis….. The process by which green plants make their own food is called photo synthesis.Write in copy& learn
![](https://childrensheavenhighschool.com/wp-content/uploads/2020/04/IMG-20200421-WA0005-768x1024.jpg)
Class 4
subject computer
Answer these questions
- What is input device?
- What is output device?
3 which part is called processing device? - Name some hardware parts.
- Name 3 softwares.
1) Do these sums in copy
A)43480+32596
B)65432+98765
C)98235+87123
D)659216+95476
2) Write in Roman Numerals:-
23,43,42,19,46,13,28,48,39,29,49,33,22,11,44.