1 Define computers.
2. Mention the characteristics of a computer.
3. Write any two applications of a computer. U
4. What are the three main units of a computer?
5. What is the use of control unit?
6. What are the two types of memory a
Name any four input devices. keyboar
8 Name any four output devices. primo
9. Name any four storage devices. --> Pena
10. How is a DVD different from a CD?
11. Write one advantage of dot matrix printer.
Answers
1)A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web
2)Speed. A computer works with much higher speed and accuracy compared to humans while performing mathematical calculations. ...
Accuracy. Computers perform calculations with 100% accuracy. ...
Diligence. ...
Versatility. ...
Reliability. ...
Memory.
3)Types of computer applications
Embedded Systems.
Windows applications (also called 'Desktop applications')
Web Applications.
Web Services.
Console applications.
4)A traditional digital computer consists of three main units, the processor or central processing unit (CPU), the memory that stores program instructions and data, and the input/output hardware that communicates to other devices.
5)The control unit of the central processing unit regulates and integrates the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate momen
6)There are two major categories of memory: long-term memory and short-term memory.
7)When it comes to mouse, keyboard, touch screen, and magnetic scanner, they are the major input devices used to perform various functions on the computer.
8)The four output devices are printer, speakers, projector, and headphone.
Printer. It is used for printing from the computer.
Speakers. It is used for listening to music.
Projector. It is used for projection or presentation.
Headphone. It is used for speaking and listening.
9)10 Cool Discord Role Ideas for Your Server: The Ultimate List. 10 Digital Data Storage Devices for Computers. ...
Hard Disk Drives. ...
Floppy Disks. ...
Tapes. ...
Compact Discs (CDs) ...
DVD and Blu-ray Discs. ...
USB Flash Drives. ...
Secure Digital Cards (SD Cards)
10)A Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. DVD+R is a recordable DVD format similar to CD-R. ... The disc cannot be recorded onto a second time.
11)Advantages of dot matrix printer:
1) Can print on multi-part forms or carbon copies.
2) Low printing cost per page.
3) Can be used on continuous form paper, useful for data logging.
4) Reliable, durable.
1) Noisy.
2) Limited print quality.
3) Low printing speed.
4) Limited color printing.