Computer Hardware Important Mcqs 61- Which computer bus is used for connecting RAM to the CPU ? A. System BusB. USB BusC. Expansion BusD. PCI Bus View Answer Answer : A. System Bus Description 62- What is the purpose of a heat sink ? A. To improve network speedB. To connect external devicesC. To cool down computer componentsD. To store data View Answer Answer : D. To store data Description 63- Which type of memory is used for temporary data storage in the CPU ? A. RAMB. Hard DriveC. Flash MemoryD. Cache Memory View Answer Answer : D. Cache Memory Description 64- Which component is responsible for executing instructions in a computer ? A. RAMB. CPUC. Hard DriveD. Motherboard View Answer Answer : B. CPU Description 65- Which key combination is commonly used to enter the BIOS setup ? A. Ctrl + Alt + DelB. F2 or DelC. Shift + EscD. Alt + Tab View Answer Answer : B. F2 or Del Description 66- Which unit is used to measure the speed of a processor ? A. Hertz (Hz)B. Bytes (B)C. Watts (W)D. Pixels View Answer Answer : A. Hertz (Hz) Description 67- Which of the following ports is used to connect a keyboard or mouse in older computers ? A. PS/2B. USBC. HDMID. RJ45 View Answer Answer : A. PS/2 Description 68- What does SATA stand for ? A. Simple Automated Transfer ApplicationB. Systematic Advanced Transfer AlgorithmC. Serial Advanced Technology AttachmentD. Standard Access Terminal Architecture View Answer Answer : C. Serial Advanced Technology Attachment Description 69- Which component holds the startup instructions for a computer ? A. RAMB. ROMC. Hard DiskD. GPU View Answer Answer : B. ROM Description 70- Which hardware component is responsible for generating audio output ? A. RAMB. MonitorC. CPUD. Sound Card View Answer Answer : D. Sound Card Description 71- Which device allows the computer to communicate over a telephone line ? A. ModemB. HubC. RouterD. Network Switch View Answer Answer : A. Modem Description 72- Which of the following is an example of an optical storage device ? A. Hard DriveB. SSDC. DVDD. Flash Drive View Answer Answer : C. DVD Description 73- What is the main function of a motherboard ? A. Process user inputB. Display graphicsC. Store dataD. Connect and coordinate hardware View Answer Answer : D. Connect and coordinate hardware Description 74- What type of connector is commonly used for high-speed data transfer in modern computers ? A. VGAB. USB-CC. Serial PortD. PS/2 View Answer Answer : B. USB-C Description 75- Which part of a computer is responsible for executing arithmetic calculations ? A. RAMB. ROMC. ALUD. GPA View Answer Answer : C. ALU (Arithmetic Logic Unit) Description 76- Which of the following is an example of an input device ? A. MonitorB. ScannerC. SpeakerD. Printer View Answer Answer : B. Scanner Description 77- Which type of memory is used for long-term storage ? A. RAMB. ROMC. Cache MemoryD. Hard Disk View Answer Answer : D. Hard Disk Description 78- Which hardware component is primarily responsible for rendering graphics in a computer ? A. GPUB. CPUC. RAMD. Hard Drive View Answer Answer : A. GPU Description 79- What is the purpose of a network switch ? A. Convert analog signals to digitalB. Store data permanentlyC. Connect multiple devices in a networkD. Boost internet speed View Answer Answer : C. Connect multiple devices in a network Description 80- Which port is commonly used for connecting external monitors ? A. HDMIB. RJ45C. USBD. SATA View Answer Answer : A. HDMI Description 1 2 3 4 5
