What is Storage? Storage refers to the ability of a computer to hold data, programs, or both, either temporarily or […]

Conversion Between Units of Storage 1 KB = 1024 bytes 1 MB = 1024 KB 1 GB = 1024 MB […]

What is Computer System Maintenance? Computers consist of devices that require regular maintenance and cleaning to work at their best. […]

Common Hardware Problems, Solutions and Prevention Symptom Likely Cause Solution Prevention Computer won’t turn on Power supply failure Check the […]

Types of Digital Content Text content: articles, blog posts, ebooks, and other written materials. Image content: photos, graphics, infographics, and […]

File Formats by Content Type Text: .txt, .docx, .pdf, .html, .xml Images: .jpg, .png, .gif, .bmp, .tiff Audio: .mp3, .wav, […]

Cells, Formulas and Ranges Cell: the basic unit of a spreadsheet, a rectangular box that can contain text, numbers, formulas, […]

Using Relative Cell Referencing Sum: =SUM(A1:A5) adds up the values in cells A1 through A5. Average: =AVERAGE(A1:A5) calculates the average […]

Types of Charts Column charts: compare data across different categories. Line charts: show trends over time. Pie charts: show how […]

Using the IF Function to Determine a Grade Score Grade 0-39 F 40-49 D 50-59 C 60-69 B 70-100 A […]