Information technology is made by combining the two words “Information” and “Technology”.
- Computer systems: Characteristics of a computer, components of a computer system – CPU, Memory, storage devices, and I/O devices.
- Memory: Primary memory(RAM and ROM) and Secondary memory.
- Storage devices: Hard disk, CD ROM, DVD, memory stick
- Types of software: System software(operation system, device drivers)
- Computer networking: PAN, LAN, MAN, WAN, Wi-fi, Bluetooth, cloud computers.
- Multimedia: Images, audio, video, animal
Memory:
- Three devices are used to store data/ information.
- Memory is a storage device of a computer system.
- The manufacturer's developed advanced memory devices that can execute data speedily and can store large size data.
Processing Device:
- CPU(Central Processing Unit) Is a processing device.
- CPU is the brain on the heart of a computer it is also known as the processor and consists of a total of three units:
- the control unit(CU)
- main memory unit
- arithmetic logic unit
Elements or Components of a computer system:
There are many five major components of a computer system:
- Memory unit
- storage unit
- control unit
- hardware and software
- ALU
ALU:
- ALU stands for Arithmetic and Logic Unit
- ALU Is a part of a Computer processor
Control Unit:
- The Control Unit controls all the devices connected to the computer system
- It also programs execution along with device communication
- It communicates between processor and memory and computer peripherals.
Information Technology MCQs
Where can the data be updated?
Real-Life Problems
Prep for Target Roles
Custom Plan Duration
Flexible Plans
The total view of a database is known as?
Through API, _____ service portability is enabled.
Total bits used by the IPv6 address is ________
Total number of layers in OSI model is ___________
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UNIX is written in which language?
URL stands for _______________
Real-Life Problems
Detailed reports
Using which of the following is the interconnection of the computer possible?
What are modern computers based on?
What else is a command interpreter called?
What is a table joined with itself called?
What is the process at the most detailed level of the data flow diagrams known as?
What is the total number of users that can use a microprocessor at a time?
The standard length of the MAC address is
Where is computer firmware present?
Which of the following commands in UNIX is used to send a signal?
Which of the following computer memory users cannot write any information or instruction?
Which of the following does computer hardware consist of?
Which of the following is a single-user operating system?
Which of the following is an extension of image file?
Which of the following is known as an uninterruptible unit?
Which of the following is not a SQL command?
Which of the following is not an operating system?
Which of the following memory of the computer is volatile?
Why is a firewall used in a computer?
Identify the one which is not a networking device.
Another name of reading operation in?
Choose among the following, which is the most common internet protocol.
Choose the port number of FTP.
Computer word size is a multiple of ______ bits
Dbase III is?
Device driver required in?
Full form of SBC is?
How many levels are there in the architecture of the database?
Identify the call which never returns an error?
Identify the different features of Big Data Analytics.
Identify the language which is mainly used for Artificial Intelligence
Among the following which is not a database management software
Identify the range of byte data types in JavaScript
Identify the total standard color names that HTML supports.
In what terms is Computer memory measured?
Information in computer read-only memory stored by
LPT stands for ______________
OCR stands for _____________
SSLstands for _______________
Testing of program’s corporate is known as?
The computer system which uses a drum plotter is known as?
The full form of DOM is?
The main memory of a computer system is?
