Old school 80's/early 90s computer desk

Old school computer desk when computers were the size of small cars. Frame is very light but the desk top is very heavy. No screws. We had it attached with duct tape (see pics) but if you use it better if it's more secure. 30" x 60". Free to good home and must take all. Porch pick up. Will be put to curb in the evening (July 20)