Computer Important Question Answer 1

1.What is computer and how many type of computers?

Ans- A computer is an electronic device that accepts data, processes it, stores, and then produces an output.

There are four type of computer according to capacity or size

Microcomputer

Mini computer

Mainframe computer

Super computer

2. What is full from of computer?

Ans- COMPUTER stands for Common Operating Machine Purposely Used for Technological and Educational Research

3. Genration of computer?

Ans- 1940 – 1956: First Generation – Vacuum Tubes. These early computers used vacuum tubes as circuitry and magnetic drums for memory. ...

1956 – 1963: Second Generation – Transistors. ...

1964 – 1971: Third Generation – Integrated Circuits. ...

1972 – 2010: Fourth Generation – Microprocessors.

2010-  : Fifth Generation – Artificial Intelligence

4. Who is Inventor of computer?

Ans- Charles Babbage created the concept of a programmable computer

5. What is bit in computer?

Ans- A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1. .. Bit. A bit (short for "binary digit") is the smallest unit of measurement used to quantify computer data. It contains a single binary value of 0 or 1. ... For example, a small text file that is 4 KB in size contains 4,000 bytes, or 32,000 bits.

6. Computer component name internal and external Component

 Ans- Motherboard-Contains all of the connections that allow the carious other subsystems to interact. Central Processing unit (CPU)-The components that performs all calculations and mathematical manipulations in a computer.  Read Only Memory (ROM)-The memory that computers use to store data and instructions needed by the CPU for computer operation. Disk Drive-Allows a computer to play CD’s or DVD’s. Processor-The brain of the computer system.

Processor-The brain of the computer system.  Fan-The fan is a device that helps your computer cool down a lot easier by blowing around the air in your laptop. Heat sink- Necessary to have a CPU cooler. Without it, your CPU will quickly burn itself out. External component Microphone-Listens and captures or amplifies sound.  Monitor-Displays information for user on a desktop computer.  Keyboard-Lets the user type information. Mouse-Allows the user to move the cursor on the computer. Power Supply-The charger for the laptop that allows the user to charge their computer. This puts more battery power into the computer so that it can last longer.

7. What is hardware and software?

Ans- Computer hardware is any physical device used in or with your machine, whereas software is a collection of code installed onto your computer's hard drive

8. What is motherboard and type of motherboard?

Ans-The motherboard is a Printed Circuit Board which acts as the main platform for communication between all other components of a system. All the other computer parts are either directly installed or connected to various motherboard components and all the data is transferred between them through the motherboard. AT Motherboards The oldest of the main boards, these motherboards were used in earlier 286/386 or 486 computers. The AT means the board consists of advanced technology (AT) power connectors. There are two power connectors of 6 pin each mounted on the AT motherboards. The AT motherboards were available in the early 80’s.

9. What is RAM and ROM and Type of RAM, ROM?

Ans- Random Access Memory (RAM) –It is also called as read write memory or the main memory or the primary memory. The programs and data that the CPU requires during execution of a program are stored in this memory. It is a volatile memory as the data loses when the power is turned off. RAM is further classified into two types- SRAM (Static Random Access Memory) and DRAM (Dynamic Random Access Memory). e

10. What is memory and type of memory?

Ans-Memory is storage device but storing data in two format according to divided memory are two type primary memory and secondary memory