1) What are the components of a Computer? 
Ans. The components of a compute. are Processor, RAM, Motherboard, SMPS, Hard Disk and Input Output Devices.

2) What are the input deices? Tell me any 3.
Ans- The devices through which processor receive the instructions are called input devices. Mouse, Keyboard and scanner are bass input devices.

3) What are the output devices? Tell me any 3.
Ans- The devices on which the processor sends the output are called output devices. Monitor, Printer and Speaker are basic output devices.

4) What is a processor?
Ans- A processor is the main component of the computer which accepts the instructions from the input devices, process on that instruction and sends the output to the output devices.

5) Which is the latest processors of Intel?
Ans- core 19 (Release-Quarter 2017) is the latest processor of Intel.

6) Which is the latest processors of AMD? 
Ans- AMD Ryzen is the latest processor of AMD.

7) How many physical cores are there in Intel core 1 3, i-5, i-7 and i9?
Ans- 13-2 Physical Cores, 15-2 or 4 Physical Cores, i7-4 Physical Cores and i9 has 10-18 physical Cores

8) What is cache memory?
Ans- Cache memui y is a small and for memory which is placed between Processor and RAM. Coche nueautV SIGEES the instruction from the RAM so that processor does not have to traverse RAM to get the instruction.

9)what are EDB, HEIST, Turbo Boost, Hyper-Threading, Smart Cache and virtualization? 
1)EDB
Execute Disable Bit is an patel hardware based security feature that help secure computer tro. viruses and malicious.
2)EIST- 
Enhanced Intel Speed Step Technology allows the system to dynamically adjust processor voltage and frequency according to requirement. 
3)Turbo Boost-
It is new feature of Intel latest processors which automatically allows processor cores to run faster than the base operating frequency.
4)Hyper Threading-
Hyper threading enables a single processor to work as logically 2 processor. It was launched with Pentium-4 Processor.
5)Smart Cache-
Smart Cache allows each core of processor to dynamically util to 100% of available cache memory. 
6)Virtualization-
It is a technology used to run multiple virtual machines on a physical machine.

10) What are FSB, DMI and QPI? 
FSB-
Front Side Bus connects Microprocessor to RAM through North Brid
DMI-
Direct Memory Interface is a feature of computer systems that all certain hardware subsystems to access main system memory (RAM) independently of the central processing unit (CPU).
QPI-
Quick Path Interconnect (QPI) is a point-to-point processor interconnects developed by Intel which replaced the front-side bus (Front side bus).

11) What is the Difference between Volatile and Non-Volatile Memory?
Ans- Volatile memory is temporarily storage and can store data u receiving power whereas Non Volatile stores data permanently e turning off the power. better Life

12) What is SRAM?
Ans- Static Random Access Memory is a volatile memory that retains data bits in its memory and does not have to periodically refreshed. Cac the example of SRAM.

13) What is DRAM?
Ans. Dynamic Random Access Memory is a volatile memory that stores data bits in cells and have to periodically refreshed System Memory is the example of DRAM.

14) What is ROM?
Ans. Read Only Memory (ROM) is Non Volatile memory which stores data permanently. The Data in ROM can only be read but cannot be modified.

15) What are the types of ROM?
Ans. The type of ROM are PROM (Programmable Read-Only Memory), EPROM (Erasable Programmable Read Only Memory) and EEPROM (Electrically Erasable Programmable Read Only Memory).

16) What is the Motherboard?
Ans- Motherboard is the most important components of the computer which connects all the components together and passes the required voltage to all the devices.

17) What are North Bridge, South Bridge, ICH and Super I/O Chip?
North Bridge- North Bridge controls the interaction of processor with the Syste Memory (RAM).
South Bridge- South Bridge controls the interaction of processor with Input/output Controllers and Expansion slot such as PCI and AGP slots.
ICH- Input/output Controller Hub is an Intel microchip which is use to conn control peripheral devices.
Super /o Chip- Super IO chip is a single chip which controls slower 1/0 devices which are not controlled by South Bridge

18) Define Following
a) PCI- Peripheral Component Interconnect is a 32-bit wide bus which is used to attaching expansion card on the motherboard such as LAN Card,Sound Card and Internal Modem.
b) AGP- Accelerated Graphics Port is dedicated to attach graphics card on the motherboard.
20)What is Jumper
Ans Jumpers are the small pins used to configure motherboard and other devices like Hard Disk Drive and CD/DVD.

19) What is SMPS?
Ans- Switch Mode Power Supply provides the regulated DC voltage to all the component of a computer,

20) What are the Output Voltages of power supply?
Ans. The output voltage of power supply are +12V, -12V, +5V,-5V and 3.3V.

21) What are the power supply control Signals? 
Ans- Following are the control signal of power supply
a) PG Signal (Gray +5V) - it indicates to motherboard that all the supplies voltage (+12V, -12V, +5V, -5V, 3.3V) are at proper level.
b) PS_ON Signal (Green +5V) - It is used to power on and power off the SMPS unit.  
c)Standby Signal (Violet +5V) - It keeps the power supply in standby mode if input AC is active even the system is turned off.

22) How to check power supply?
Ans. If the SMPS fan is working fine after shorting the PS_ON signal (Green) with any Ground (Black), initially the SMPS is working fine.

23) What are Molex and Mini-Molex power connectors?
Ans- Molex power connector provides power to the Hard Disk Drive and Optical Disk Drive whereas Mini-Molex is used to provide power to floppy drive

24) What is Hard Disk?
Ans- A hard disk is the primary permanent storage device which hosts the operating system as well as data.

25) What are the different types of HDD?
Ans. The different types of hard disk drives are IDE/ATA, SATA, SCSI and USb

26) What is RPM? What are different RPM in HDD?
Ans- Revolution Per Minute defines that how many times the platter of the drive completes 360° turn in one minute. Faster RPM means better read write performance of the drive. Different RPM of the hard drives are 5400, 5900, 7200 and 10000.

27) What are different types of CD Drives?
Ans. The different types of CD drives are CD-ROM Drive, CD-R Drive and CD-RW Drive.

28) What is Combo Drive?
Ans- Combo drive can read and write CD Disk but can only read DVD Disk.

29) What is capacity of Blu-Ray Disk?
Ans- Single layer Blu-Ray disk can store up to 25 GB and dual layer can GB .