True / False & MCQ

1. Which of the following is true?

1. there are 8 bits in a byte
2. there are 8 bytes in a bit
3. there are 8 tracks in a sector
4. there are 8 sectors in a track
5. none of the above

2. A disk drive writes data from RAM onto a disk storage medium.
3. Computer software can be divided into two categories; the operating system and the applications system.
4. The microprocessors used on personal computers can only understand machine language.
5. An operating system is generally stored on the computers motherboard.
6. Data to be processed is first placed in ROM and is then copied to RAM for processing.
7. A logical operation refers to the computers ability to compare or evaluate data and then proceed based on the results of the comparison.
8. The computers operating system is retrieved from primary memory and copied into ROM when the computer is powered on.
9. Hard disks, CDs & DVDs are forms of secondary/auxiliary storage.
10. The control unit is divided into two areas: ROM and RAM.
11. When the computer is powered on, a program in RAM performs a power on self-test (POST).
12. An applications software system is a set of programs that manages the interface between the user and the hardware and software resources of the computer system.
13. A disk storage medium spins in its protective cover so that the read/write head of the disk storage device can be positioned at the correct track.
14. The read/write head of a disk storage device moves in and out so that it can be positioned at the correct sector.
15. When a storage operation is performed on a hard disk, the disk directory is first accessed and after the file is stored, the file allocation table is accessed.
16. When a retrieval operation is performed from a hard disk, the file allocation table is first referenced before the file can be copied into RAM.
17. The primary function of an input device is to enter data into:

1. ROM
2. ALU registers
3. The instruction register
4. RAM
5. none of the above

18. Some external devices are connected to a computer through an I/O port which must be plugged into an interface slot on the computers motherboard.

19. Which of the following is a coding system used with personal computer?

1. Linux
2. Windows
3. ASCII
4. Language Translator
5. none of the above

20. RAM memory stores data and programs when the computer is powered off so that we can use the data and programs when we power on the machine at a later time.
21. Both the control unit and the arithmetic logic unit are part of the processor.
22. Which of the following is an input device?
    1. Keyboard
    2. Scanner
    3. Mouse
    4. all of the above
    5. none of the above
23. A bit of RAM can store more data than a byte of RAM.
24. Checking if a student's age is greater than 25 is an example of a logical operation.
25. The computer's operating system cannot store information on a disk that is not formatted.
26. Which of the following is not applications software?

1. Windows
2. Excel
3. Word
4. PowerPoint
5. none of the above