Organization, CPU, I/O Devices Questions with Solutions
This topic covers how a computer is organised internally and how it communicates with the outside world. The central processing unit (CPU) has three main parts: the arithmetic logic unit (ALU), which performs calculations and comparisons; the control unit (CU), which directs operations; and registers, which hold data temporarily. The topic also covers the system bus (data, address and control buses), the motherboard, and clock speed. Input and output (I/O) devices are the other main part. Input devices include the keyboard, mouse, scanner, microphone, OCR, OMR, MICR and barcode readers. Output devices include monitors, printers (impact and non-impact), plotters and speakers. Exam questions often ask you to classify a device as input, output or both (such as a touchscreen), or to identify which device is used for a particular purpose, such as MICR for bank cheques. Practise the CPU and I/O device questions below. Each answer includes an explanation.
- Q1.
Which of the following is hardware, not software?
A. MS-WordB. NotepadC. InternetD. MouseeasyAsked in MAH MCA CET 2023View solution › - Q2.
______ component is used for performing calculations.
A. ALUB. CPUC. MouseD. PrintereasyAsked in MAH MCA CET 2023View solution › - Q3.
MOTHERBOARD is also called the —
A. Computer BoardB. System BoardC. Operating SystemD. Computer DeviceeasyAsked in MAH MCA CET 2023View solution › - Q4.
When a text document is printed, the document is called —
A. Soft CopyB. Hard CopyC. BothD. NoneeasyAsked in MAH MCA CET 2023View solution › - Q5.
Peripheral devices like plotters and printers are considered as —
A. HardwareB. SoftwareC. DataD. InformationeasyAsked in MAH MCA CET 2023View solution › - Q6.
Which of the following is not a type of computer architecture?
A. Von Neumann ArchitectureB. Harvard ArchitectureC. Instruction Set ArchitectureD. Neural ArchitectureeasyAsked in MAH MCA CET 2025View solution › - Q7.
Which unit is responsible for converting the data received from the user into a computer-understandable format?
A. Memory UnitB. Output UnitC. Arithmetic & Logic UnitD. Input UniteasyAsked in MAH MCA CET 2024View solution › - Q8.
If a processor clock is rated at 2500 million cycles per second, then its clock period is
A. sB. sC. sD. seasyAsked in NIMCET 2023View solution › - Q9.
What is the brain of the computer called?
A. CPUB. MotherboardC. HDDD. HardwareeasyAsked in TCS ExamView solution › - Q10.
Processors contain a control unit and a/an:
A. Expansion slotB. PortC. Arithmetic logic unit (ALU)D. CD driveeasyAsked in TCS ExamView solution › - Q11.
C.P.U. consists of
A. Arithmetic and Logical unit and RegisterB. Arithmetic and Logical unit, Register and Control unitC. System unit and MemoryD. Hard disk and Control uniteasyAsked in TCS ExamView solution › - Q12.
_______is the part of the Central Processing Unit (CPU).
A. MonitorB. Arithmetic and Logic UnitC. KeyboardD. PrintereasyAsked in TCS ExamView solution › - Q13.
_______ ports connect special types of music Instruments to sound cards.
A. BUSB. CPUC. USBD. MIDIeasyAsked in TCS ExamView solution › - Q14.
The patterns of printed lines on most products are called
A. ScannersB. StrippingC. Bar codesD. OCReasyAsked in TCS ExamView solution › - Q15.
The user generally applies to access mainframe or supercomputer
A. terminalB. nodeC. desktopD. handheldeasyAsked in TCS ExamView solution › - Q16.
Resolution of laser printer specified in terms of:
A. DPIB. LPMC. CPMD. PPMeasyAsked in TCS ExamView solution › - Q17.
In MICR, "C" stands for:
A. CodeB. CharacterC. ComputerD. CurrenteasyAsked in TCS ExamView solution › - Q18.
Which of the following is a signal informing a program that an event has occurred?
A. SoftwareB. InterruptC. HardwareD. ErroreasyAsked in TCS ExamView solution › - Q19.
Which of the following key boards is used for most of the IBM compatible computer systems?
A. SpecialB. QWERTYC. DVORAKD. GeneraleasyAsked in TCS ExamView solution › - Q20.
Which of the following types of mouse uses photodiodes and LED technology to detect movement?
A. OpticalB. LaserC. MechanicalD. Opto-mechanicaleasyAsked in TCS ExamView solution ›