1) COMPUTER IS AN -
(A) Electrical (B) Electronic (C) Mechanical Machine.
Ans.) Electronic Machine.
2) COMPUTER ACCEPT DATA FROM USER THROUGH -
(A) Output Device (B) Input Device (C) Storage Device
Ans.) Input Device
3) WE GET RESULT FROM COMPUTER THROUGH -
(A) Output Device (B) Input Device (C) Storage Device
Ans.) Storage Device
4) EXAMPLES OF INPUT DEVICES OF COMPUTER ARE -
(A) HDD, SSD, Pen drive, CD, DVD etc (B) Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc (C) Printer, Monitor, Projector, Sound Box etc.
Ans.) Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc.
5) EXAMPLES OF OUTPUT DEVICES OF COMPUTER ARE -
(A) HDD, SSD, Pen drive, CD, DVD etc (B) Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc (C) Printer, Monitor, Projector, Sound Box etc.
Ans.) Printer, Monitor, Projector, Sound Box etc.
6) EXAMPLES OF STORAGE DEVICES OF COMPUTER ARE -
(A) HDD, SSD (B) Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc (C) Printer, Monitor, Projector, Sound Box etc.
Ans.) HDD, SSD
7) EXAMPLES OF EXTERNAL MEMORY OF COMPUTER ARE -
(A) CD, DVD, PEN DRIVE, MEMORY CHIP etc. (B) Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc (C) Printer, Monitor, Projector, Sound Box etc.
Ans.) CD, DVD, PEN DRIVE, MEMORY CHIP etc.
8) ALL DATA ARE PROCESSED IN -
(A) RAM (B) ROM (D) Micro Processor
Ans.) Micro Processor
9) WE STORE DATE FOR FUTURE IN -
(A) RAM (B) ROM (D) HARD DISK DRIVE (HDD) OR SSD
Ans.) HARD DISK DRIVE (HDD) OR SSD
10) WRITE TYPES OF COMPUTER -
Ans.) Computer is mainly Two Types as, (a) Digital Computer and (b) Analog Computer. Digital Computer is Four Types, as -
(a) Micro Computer (b) Mini Computer (c) Mainframe Computer and (d) Super Computer
11) WHAT IS INPUT DEVICE, GIVE EXAMPLES?
Ans.) Input Device is that by which device we can input data in Computer.
As Keyboard, Mouse, Micro Phone, CC TV Camera, Web Camera, Joystick, Scanner etc.
11) WHAT IS OUTPUT DEVICE, GIVE EXAMPLES?
Ans.) Output Device is that by which device we get result as Hard Copy or Listen or See. As Printer, Monitor, Projector, Sound Box etc.
12) WHAT IS MEMORY OF COMPUTER?
Ans.) Memory of Computer is that device where we store data for future. It is two types. As (a) Internal Memory and (b) External Memory.
(a) Internal Memory is fixed in CPU Cabinet. As Hard Disk Drive (HDD), Solid State Drive (SSD)
(b) External Memory is removal memory. We use this memory to transfer data from one Computer to another Computer. As CD, DVD, Pen Drive, Micro Chip etc.
13) UNIT OF COMPUTER
Ans.) Positive Electricity = 1 (One), Negative Electricity = 0 (Zero)
The smallest unit of memory is "Bit"
1 or 0 = 1 Bit, 8 Bit = 1 Byte, 1024 Byte = 1 Kilobyte (KB), 1024 KB = 1 Megabyte (MB), 1024 MB = 1 Gigabyte (GB), 1024 GB = 1 Terabyte (TB)
14) GIVE EXAMPLES OF PRIMARY AND SECONDARY MEMORY -
Ans.) Primary Memory ::- RAM (Random Access Memory) and ROM (Read Only Memory)
Secondary Memory ::- HDD (Hard Disk Drive) and SSD (Solid State Drive)
15) WRITE TYPES OF ROM -
Ans.) ROM is three types -
(a) PROM (Programmable Read Only Memory)
(b) EPROM (Erasable Programmable Read Only Memory)
(c) EE PROM (Electronic Erasable Programmable Read Only Memory)
16) WHAT IS VOLATILE AND NON-VOLATILE MEMORY?
Ans.) RAM is a Volatile Memory because all data are erased from RAM when you will Shutdown the Computer or Power will off.
ROM is a Non-Volatile Memory because all data are not erased from RAM when you will Shutdown the Computer or Power will off.
17) WHAT IS "CASH MEMORY" ?
Ans.) Cash Memory is a High Speed and Costly Memory. It helps to transfer data in very high speed. This Memory is not available in all Computer.
18) WHAT IS "MICRO PROCESSOR"?
Ans.) Another name of Micro Processor is - Central Processing Unit of CPU. It is divided in three parts (a) Arithmetical Logic Unit (ALU) (b) Main Memory (MM) and (c) Control Unit (CU). All Mathematical and Logical functions are done in Arithmetical Logic Unit. After processing, Main Memory stores that data. Control Unit maintains all devices related with computer.
19)WHAT IS HARDWARE?
Ans.) All devices of Computer which are touchable and visible are called Hardware.
20) WHAT IS SOFTWARE?
Ans.) Software is a set of programs and instructions. Computer is run with Software. Without Software Computer we can't run a Computer.
20) WHAT IS OPERATING SYSTEM SOFTWARE?
Ans.) Which Software is used to operate the Computer, called Operating System Software. As, DOS (Disk Operating System), Windows - 95/97/2000/XP/7/8/8.1/10/11/12, Linux etc.
21) WHAT IS UTILITY OR APPLICATION SOFTWARE?
Ans.) Which Software is used for particular job is called Utility or Application Software. As, Microsoft Office Word, Microsoft Office Excel, Photoshop, Tally etc.
22) WHAT IS MONITOR?
Ans.) Monitor is a main output device of a Computer. Actual name of Monitor is Video Display Unit or Visual Display Unit (VDU). It is three types as - CRT Monitor, LCD Monitor, LED Monitor but at present CRT Monitor is not available in market.
23) WHAT IS KEYBOARD?
Ans.) Keyboard is one of the main input device of a Computer. There are minimum 104 keys in a Keyboard. Keyboards are three types, as - Normal Keyboard, Multimedia Keyboard and Gaming Keyboard. Division of a Keyboard - Alphanumeric Key Pad, Numeric Key Pad, Cursor Movement Key Pad, Functional Key Pad and Escape Key.