Computer Essentials

Open a new document in Microsoft Word.
Save the document with your name and date (YYYYMMDD).
Put your name and your instructors name at the top of the document.
Use the automatic numbering on the document.

Complete the following Questions
Note: Q1- Q2- Q3 – References should be written
Question. 1) (1 Mark): -why we say” OS is a resource allocator” and “OS is a control
program”?
Question. 2) (1 Mark): – Explain what is microprocessor and its structure?
Question. 3) (1 Mark): – Discuss Tow type of System Board?
Question. 4) (1 Mark) Name one system software that you used and describe how this system
software make your life easier?
Question.5 (1 Mark) Match each numbered item with the most closely related lettered item. Write

your answers in the table given:
1- convert numbers, letters, and special characters that people understand into
electrical signals

2- You are familiar with bar code readers which are either handheld wand
readers or platform scanners ,you can also scan bar code by
3- are similar in size and technology to older television . They have been replaced
by flat-panel monitors.
4- a technology from some e-book readers producing images that reflect light like
ordinary paper.
Answers:

1.
2.
3.
4.

a. laser printer
b. CRTs
c. touch pads
d. LCD
e. HDTV
f. e-ink
g. pointing sticks.
h. Ergonomic Keyboard
i. UPC
j. Smartphone