Note : Each question carry three parts (A), (B), (C) out of which attempt any two parts. All questions carry
equal marks.
1. (A) What do you mean by computer? Discuss the use of
computer in daily life.
(B) Differentiate between computer hardware & Software.
(C) Describe about the different types of computer
peripherals and memory devices.
2. (A) What is a printer? Explain different types of printer.
(B) What are scanning devices? Explain any four scan-
ning devices.
(C) What is CPU? Discuss components of CPU.

1)a)the electronic device that helps us to read write listen music entertainment play games etc.Use of computer in our life is incredibly necessary. ... Computers have taken industries and businesses to a worldwide level. They are used at home for online education, entertainment, in offices, hospitals, private firms, NGOs, Software house, Government Sector Etc.

b)Hardware is a physical parts computer that cause processing of data. Software is a set of instruction that tells a computer exactly what to do. ... Hardware can not perform any task without software. software can not be executed without hardware.

c)Personal Computer (PC)

2Workstation

3Minicomputer

4Main Frame

2)a)Printers are one of the common computer peripheral devices that can be classified into two categories that are 2D and 3D printers.Laser Printers.

Solid Ink Printers.

LED Printers.

Business Inkjet Printers.

Home Inkjet Printers.

Multifunction Printers.

Dot Matrix Printers.

3D Printers.

b)an electronic device which scans artwork and illustrations and converts the images to digital form for manipulation, and incorporation into printed

c)A central processing unit, also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation: