Pick a lab · 1 lab · 0 open · Mon/Wed 8:40 PM - 9:30 PM
- OS1B-LABMon/Wed · 8:40 PM - 9:30 PMYanilda Peralta RamosChill Rank 4 of 5: Busy?★ 3.3(21)Difficulty 3.2/5 · 50% would take againOnline SynchronousClosed
CIS 345: Operating Systems at Lehman College
4 credits · Fall 2026
Operating Systems (CIS 345) at Lehman College has 1 way to take it in Fall 2026, plus 1 recitation or lab time you pair with a lecture. 0 of 2 sections have an open seat right now.
The professor is: Yanilda Peralta Ramos.
Compare them below, check the days and times, and add the course to your schedule.
This course meets as a lecture plus a lab. Your schedule needs one time from each, and the schedule builder picks them together.
Requirements
Prerequisite: CMP 157, CMP 167, CIS 212
About this course
Overview of operating systems (O.S.) from both a theoretical and a systems manager point of view. Process management and multitasking, memory management, resource management, file management, I/O management, command interpreter/shell, and shell scripts will be covered. Large networked systems will be discussed from a systems point of view.Prerequisites: CMP 157, CMP 167, CIS 212
Professors for CIS 345 at Lehman, Fall 2026
- Yanilda Peralta RamosChill Rank 4 of 5: Busy?
1 section · 0 open · ★ 3.3 (21) · difficulty 3.2/5 · 50% would take again
Ordered chillest first. A Chill Rank compares a professor with other CUNY professors on Rate My Professors difficulty, rating and would-take-again; it needs at least 3 ratings. How it works
CIS 345 sections, times and seats
Seat status as of Oct 4, 5:04 PM ET. Seats can change between refreshes. How fresh is this?
Chill Rank compares professors using Rate My Professors reviews, from Chill to Brutal. What each rank means
You need one lecture and one lab. They can be combined freely, so pick each separately; the schedule builder checks the times together.
Mon/Wed · 7:50 PM - 8:40 PM
OS1C-LEC · Online Synchronous · Online-Synchronous
Yanilda Peralta RamosChill Rank 4 of 5: Busy?★ 3.3(21)Difficulty 3.2/5 · 50% would take again
Closed
Questions about CIS 345 at Lehman
- Who teaches CIS 345 at Lehman in Fall 2026?
- Yanilda Peralta Ramos is listed for Fall 2026. Each name links to a page with their Chill Rank and Rate My Professors numbers.
- Is CIS 345 at Lehman hard?
- It depends on the professor. Across the 1 professor with a Chill Rank, students on Rate My Professors give an average difficulty of 3.2 out of 5. The Chill Rank above compares them directly.
- What if a CIS 345 section is full?
- Try another section, join the waitlist in CUNYfirst if there is one, or ask the department. You can also watch a full section and get an email when a seat opens; you still enroll yourself in CUNYfirst.